Operator Controls.. 561s2m
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Main » Autodata » Caterpillar
Operator Controls... 246C, 256C, 262C and 272C Skid Steer Loaders Caterpillar Hydraulic BREAKER Usage: 256C DWS 297C G 246C JAY 289C JMP 299C JSP 277C JWF 287C MAS 279C MBT 262C MST 272C RED
Note: Your machine may not be equipped with all of the controls that are discussed in this topic. The operation section is a reference for the new operator and a refresher for the experienced operator. This section includes descriptions of gauges, switches, machine controls, attachment controls, transportation, and towing information. Illustrations guide the operator through correct procedures of checking, starting, operating, and stopping the machine. Operating techniques that are outlined in this publication are basic. Skill and techniques develop as the operator gains knowledge of the machine and the capabilities of the machine. Note: Simple hydromechanical work tools may be shipped without hydraulic oil. Uneven movement may occur until all the air has been removed from the work tool. You may need to add hydraulic oil to the machine after the machine fills the circuits of the work tool. Refer to Operation and Maintenance Manual, "Hydraulic System Oil Level - Check" for the proper procedure for checking the hydraulic oil level. Note: If the machine is not equipped with a cab that is enclosed, Caterpillar recommends the use of a flying object guard. If the machine is equipped with an enclosed cab, operate the machine with the cab door in the CLOSED position.
Left Side Controls
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Illustration 1
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(1) Auxiliary Hydraulic Pressure Release (2) Hydraulic Lockout and Interlock Override (3) Rear Work Lights (4) Front Work Lights (5) Multifunction Switch for the Left Hand Trigger (6) Auxiliary Electrical Control (7) Automatic Level Control (8) Work Tool Coupler Control
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(9) Fuel Level Gauge (10) Service Hour Meter (11) Joystick Control Pattern (12) Parking Brake (13) Engine Start Switch (14) 12 volt Plug (15) Window Wiper and Window Washer (16) Alert Indicator
Auxiliary Hydraulic Pressure Release (1)
Personal injury or death can result from the work tool falling. Fully lower the loader arms before you release the hydraulic system pressure. ---------------------Auxiliary Hydraulic Pressure Release - After the engine has run in order to charge the accumulator, turn the ignition switch to the OFF position. Turn the ignition switch to the ON position. Release the parking brake. Push up on the locking tab and press the bottom of the switch in order to release the pressure in the Standard Flow Auxiliary Circuit and the High Flow Auxiliary Circuit. Hold the switch for 4 to 5 seconds and release the switch. Note: The operator must remain in the seat with the armrests in the LOWERED position in order for the control to function. If equipped, the front door must be closed. Note: The pressure in the secondary circuit is not affected by this switch. Refer to Operation and Maintenance Manual, "Work Tool Coupler Operation : Secondary Auxiliary Circuit" for the procedure to release the pressure.
Hydraulic Lockout and Interlock Override (2) Hydraulic Lockout - Press the top of the switch in order to disable the hydraulic functions. Return the switch to the middle position in order to activate the hydraulic functions. Note: Activate the hydraulic shutoff when you are roading the machine in order to prevent unplanned movement of the work tool and the loader arms.
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Interlock Override - The interlock override allows the auxiliary hydraulic circuits to function with the armrests in the RAISED position. First bring the machine to a complete stop. Activate the continuous flow control that is located on the left side joystick. Refer to the section "Joystick Controls" for detailed information. Press the bottom of the interlock override switch and release the switch in order to activate the interlock override function. In order to turn off the interlock override and continuous flow, press the bottom of the switch and release the switch again.
Inadvertent movement of the work tool may occur if the interlock override function is used with work tools. This may result in personal injury or death. Only use interlock override function for hand-held work tools. ---------------------Note: The alert indicator for the parking brake will light when the interlock override is activated. When the interlock override is deactivated, press the parking brake switch in order to disengage the parking brake and activate the hydraulic functions.
NOTICE Do not leave the machine unattended while you have the interlock override function activated.
Switch on the Cab Door A switch is provided on the cab door that prevents the work tool from operating when the cab door is open. If the cab door is not installed, install a jumper wire between Terminal 2 and Terminal 4 in the wiring harness connector for the Window Wiper. Refer to Special Instruction, REHS1738, "Installing the Cab Door and Mounting Group" for more information about the cab door. Note: When the door is installed, remove the jumper wire from the connector plug before you connect the harness. Damage to the door could occur if the jumper is left in place.
Rear Work Lights (3)
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Rear Work Lights - Press the bottom of the switch in order to turn on the lights. Press the top of the switch in order to turn off the lights.
Front Work Lights (4) Front Work Lights - Press the bottom of the switch in order to turn on the lights. Press the top of the switch in order to turn off the lights.
Multifunction Switch for the Left Hand Trigger (5) This switch is used to toggle the function of the trigger on the left-hand joystick between Two Speed and the Auxiliary Electrical Function "AUX 7".
Two Speed Two Speed - Push the top of the switch in order to use the trigger for the two speed control. Press the trigger and release the trigger on the front of the left-hand joystick in order to activate rabbit mode. In order to return to single speed, press the trigger and release the trigger again. Note: Keep the work tool close to the ground when you travel in rabbit mode. This method will maximize the stability of the machine. Note: Do not move the multifunction switch while the Two Speed function is active. Ensure that the machine is in single speed mode before the Auxiliary Electrical Function "AUX 7" is activated. Note: The creeper must be turned off in order to shift the machine into two speed. If you activate the creeper, the machine will return to single speed. If you set the parking brake, the machine will return to low speed.
Auxiliary Electrical Function "AUX 7" Note: If the switch is not present, the trigger on the left-hand joystick only provides this auxiliary function. Auxiliary Electrical Function "AUX 7" - Push the bottom of the switch in order to activate the seventh auxiliary electrical function. Pull the trigger and hold the trigger on the lefthand joystick in order to provide electrical power to pin (B) on the work tool connector on the loader arm. Release the trigger in order to deactivate the control.
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Auxiliary Electrical Control "AUX 8"
Illustration 2
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Typical electrical connection on the loading arm
Auxiliary Electrical Control "AUX 8" (6) - The auxiliary electrical control supplies continuous electrical power to pin (H) on the connector for the work tool on the loader arm. Press on the bottom of the switch in order to turn on electrical power. Press on the top of the switch in order to turn off electrical power.
Automatic Level Control (7) Automatic Level Control - The Automatic Level Control maintains the approximate selected angle of the work tool as the loader lift arms are raised. Press on the bottom of the switch in order to activate the automatic level control. Press on the top of the switch in order to deactivate the automatic level control. Note: The Automatic Level Control keeps a load at the selected angle when the lift arms are raised. The Automatic Level Control is not designed to maintain the selected angle of the work tool when the lift arms are lowered. Note: If Automatic Level Control and Ride Control are selected, Ride Control will be activated at the Activation Speed and the Automatic Level Control will be deactivated. When the machine
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reaches the Deactivation speed, the Ride Control will be deactivated and the Automatic Level Control will be activated. Refer to the section on "Ride Control" for more details.
Work Tool Coupler Control (8)
Improper Attachment of the Work Tool could result in injury or death. Do not operate the machine without confirmation that the coupler pins are fully engaged. Follow the operating procedures in the Operation and Maintenance Manual. ---------------------Work Tool Coupler Control - The work tool coupler control controls the engagement of the coupler pins. Disengaged - Push the red button upward and press the bottom of the switch. Hold the switch in the downward position until the coupler pins disengage. Engaged - Press the top of the switch and hold the top of the switch until the coupler pins engage. Refer to Operation and Maintenance Manual, "Work Tool Coupler Operation" for the proper procedure for the work tool coupler.
Fuel Level Gauge (9) Fuel Level Gauge - The needle in the red range indicates low fuel.
Service Hour Meter (10) Service Hour Meter - The service hour meter should be used to determine service hour maintenance intervals.
Joystick Control Pattern (11) The switch for the Joystick Control Pattern has a number "1" on one side and a number "2" on the other side. When you start the machine, choose "1 - Caterpillar" or "2 - Alternate" in order to release the parking brake. The numbers on the Alert Indicator will blink until a pattern is selected. Once a pattern has been selected, activating the parking brake will not affect the selection of the pattern. Refer to the section "Joystick Controls" for detailed information.
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Parking Brake Control (12) Parking Brake Control - Press on the right side of the switch and release the switch in order to engage the parking brake. The same operation will disengage the parking brake. Note: The parking brake will engage when the engine is stopped. The parking brake will engage when the armrests are moved to the RAISED position. The parking brake will engage when the operator leaves the operator seat for a time. The parking brake will engage when the interlock override is activated. Note: If the switch for the Joystick Control Pattern is installed, select a pattern in order to release the parking brake.
Engine Start Switch (13) OFF - Insert the engine start switch key only from the OFF position and remove the engine start switch key only from the OFF position. Turn the engine start switch key to the OFF position in order to stop the engine. In the OFF position, there is no power to most electrical circuits on the machine. The cab dome light is operational even when the engine start switch is in the OFF position. ON - Turn the engine start switch key clockwise to the ON position in order to activate all of the cab circuits. START - Turn the engine start switch key clockwise to the START position in order to crank the engine. Release the engine start switch key after the engine starts and the engine start switch key returns to the ON position. Note: If the engine fails to start, the turn the engine start switch key to the OFF position in order to attempt to start the engine again. Refer to the Operation and Maintenance Manual, "Engine Starting" for more details about starting the engine.
12 volt plug (14) 12 volt plug
Window Wiper and Window Washer (15) Window Wiper and Window Washer - Move the switch to the middle position in order to turn on the wiper. Press on the top of the switch in order to operate the washer. Press on the bottom of the switch in order to turn off the wipers.
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Alert Indicator (16) Refer to the section Operator and Maintenance Manual, "Alert Indicators" for a description about the indicators.
Right Side Controls
Illustration 3
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(17) Coolant Temperature (18) Hydraulic Oil Temperature (19) Digital Display Window (20) Beacon Switch (21) Hazard Flashers (22) Roading Lights (23) Turn Signals
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(24) Creeper Control (25) Ride Control (26) Fan Speed Control (27) Air Conditioning Control (28) Temperature Control
Coolant Temperature (17) Coolant Temperature gauge
Hydraulic Oil Temperature (18) Hydraulic Oil Temperature gauge
Digital Display Window (19) Refer to the section "Digital Display Window" for detailed information.
Beacon Switch (20) Beacon - Press on the left side of the switch in order to turn on the beacon. Press the right side of the switch in order to turn off the beacon. The receptacle for the beacon is located on the upper left corner on the rear of the cab.
Hazard Flashers (21) Hazard Flasher Control - Press on the left side of the switch in order to activate the hazard flashers. Press on the right side of the switch in order to deactivate the hazard flashers.
Roading Lights (22) Roading Lights - Move the switch to the middle position in order to turn on the control lights and position lights. Press on the left side of the switch in order to turn on the front low beams. Press on the right side of the switch in order to turn off the lights.
Turn Signals (23) Turn Signals - Press on the left side of the switch in order to turn on the left turn signals. Press on the right side of the switch in order to turn on the right turn signals. Move the
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switch to the middle position in order to turn off the turn signals.
Creeper Control (24) The Creeper Control allows the operator to select a maximum machine travel speed at full joystick movement. Use creeper control for operations that require slow, constant speed. Creeper Control - In order to activate the creeper control, stop the machine and return the joysticks to the neutral position. Press the bottom of the switch in order to turn on the creeper control. In order to deactivate the creeper control, stop the machine and return the joysticks to the neutral position. Press the top of the switch in order to turn off the creeper control. Refer to "Digital Display Window" for detailed information about the creeper speed control.
Ride Control (25) Ride Control assists in smoothing the ride of the machine. Travel over rough terrain causes bucket movement. The ride control system uses the lift cylinders as shock absorbers. The lift cylinders dampen the forces from the bucket. Ride Control - Press the bottom of the switch in order to turn on the ride control. Ride control will activate and the alert indicator will illuminate at the appropriate speed. Press the top of the switch in order to turn off the ride control. Note: The ride control will deactivate and the indicator will not be illuminated at the appropriate speed. The ride control will also deactivate if the tilt function for the work tool is operated. The following approximate speeds apply: Activation speed - 8 km/h (5.0 mph) for Ride Control Deactivation speed - 6 km/h (3.7 mph) for Ride Control. Note: If Automatic Level Control and Ride Control is selected, Ride Control will be activated at the Activation Speed and the Automatic Level Control will be deactivated. When the machine reaches the Deactivation speed, the Ride Control will be deactivated and the Automatic Level Control will be activated.
Fan Speed Control (26) Fan Speed Control
Air Conditioner Control (27)
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Air Conditioner Control
Temperature Control (28) Temperature Control
Digital Display Window
Illustration 4
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(29) Digital Display Window (30) Scroll Up Key (31) Scroll Down Key (32) Function Selector
General Description The digital display window (29) shows some basic information about the machine. The Engine Speed, System Voltage, Job Clock, Work tool Control, "Drive Mode Control", and Creeper Control are displayed. The digital display window is used to set the work tool control. The digital display window is used to set the Creeper Control. The Function Selector (32) is used to toggle between modes that are available: Operator Mode 1 - Display Screen Operator Mode 2 - Work Tool Control Operator Mode 3 - Drive Mode Control Operator Mode 4 - Creeper Control The scroll up key (30) and the scroll down key (31) are used to toggle between screens or settings in a mode. In order to display the AccuGrade menu, press the scroll down key (31) and press the function key (32) at the same time. Refer to the AccuGrade section below.
Operator Mode 1 - Display Screen Three displays are available in this mode: Digital Tachometer, System Voltage and Job Clock.
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Illustration 5
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Representation of the Digital Tachometer (default start-up mode)
Illustration 6
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Representation of the System Voltage
Illustration 7
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Representation of the Job Clock
The default start-up mode is the Digital Tachometer. Use the "Scroll Up" button and the "Scroll Down" button in order to change the screen. The Job Clock can be reset by holding the "Scroll Up" and the "Scroll Down" buttons for 3 seconds.
Operator Mode 2 - Work Tool Control In Operator Mode 1, push the "Function Selector" button 1 time. The "Work Tool Control" screen is used in order to display the current setting for the response of the lift and tilt functions of the machine. Use the "Scroll Up" button and the "Scroll Down" button in order to change to a different setting.
Illustration 8
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Representation of the Work Tool Control
The Work Tool Control mode has three settings: Fine Control - 1 Bar Medium Control - 2 Bars Coarse Control - 3 Bars Note: The Work Tool Control setting will not change when the ignition switch is turned off.
Operator Mode 3 - Drive In Operator Mode 1, push the "Function Selector" button 2 times. The "Drive Mode Control"
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screen is used in order to display the current setting of the "Drive Mode Control" functions. Use the "Scroll Up" button and the "Scroll Down" button in order to change to a different setting.
Illustration 9
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Representation of the "Drive Mode Control"
The "Drive Mode Control" has three settings: Standard Mode - 1 Bar Intermediate Mode - 2 Bars Maximum Mode - 3 Bars Note: The "Drive Mode Control" setting will not change when the ignition switch is turned off. Note: The machine will start, stop, and steer more aggressively with each progressive drive control mode. Test drive the machine in an open area in order to test the operating characteristics of the machine.
Operator Mode 4 - Creeper Control In Operator Mode 1, push the "Function Selector" button 3 times. The "Creeper Control" screen is used in order to display the current setting for the creeper control. Use the "Scroll Up" button and the "Scroll Down" button in order to change to a different setting for the Creeper Control. Note: The "Creeper Control" setting will not change when the ignition switch is turned off. Refer to the section "Creeper Control" for operation of the switch.
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Illustration 10
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Representation of the Creeper Control
The Creeper Control has the following ten settings: Table 1 Setting
Approximate Percent of Full Speed
1
5%
2
7%
3
10%
4
13%
5
17%
6
24%
7
37%
8
57%
9
80%
10
100%
Setting 10 - The "MAX" icon will appear at the maximum setting.
AccuGrade (If Equipped)
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The following instructions are a quick reference for the AccuGrade. For detailed instructions for the AccuGrade, refer to the Operation and Maintenance Manual, SEBU8278. 1. Ensure that the Laser Receiver is attached to the work tool and attached to the machine properly. 2. In order to display the AccuGrade menu, press the scroll down key (31) and press function key (32) at the same time. 3. In order to set the benchmark, press the scroll up key (30) and press the scroll down key (31) at the same time. Hold the keys until the value is set in the computer (approximately 3 seconds). The screen will display a "0" and the screen will flash once. 4. Press the trigger and release the trigger on the right-hand joystick in order to enable the AccuGrade automatic controls. Operate the implement joystick or operate the thumb wheel in order to override the automatic controls temporarily. 5. Press the trigger and release the trigger on the right-hand joystick in order to disable the AccuGrade automatic controls. 6. Press the scroll up key (30) and hold the scroll up key in order to exit AccuGrade.
Other Features in the Cab
Cab Dome Light Cab Dome Light - Press on either side of the light in order to turn on the light. Move the light to the middle position in order to turn off the light.
Interlock Control
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Illustration 11
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Armrests
Interlock Control - Move the armrests to the RAISED position in order to lock out the hydraulic controls. Note: When the armrests are moved to the RAISED position, the parking brake will engage. Move the armrests to the LOWERED position and push the switch for the parking brake in order to activate the hydraulic controls. Note: When you start the engine, the parking brake must be disengaged in order for the hydraulic controls to be activated. If the armrests are raised and lowered during operation, disengage the parking brake in order for the hydraulic controls to be activated.
Accelerator Control
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Illustration 12
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Accelerator Control - Push down on the accelerator pedal in order to increase engine speed. Release the accelerator pedal in order to decrease engine speed. The accelerator pedal will return to the setting of the governor control.
Standard Seat
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Illustration 13
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(35) Fore/Aft Adjustment
Standard Seat
Suspension Seat
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Illustration 14
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(35) Fore/Aft Adjustment (37) Adjustment for the suspension
Fore/Aft lever (35) - Move the lever in order to adjust the seat. Height (37) - Turn the knob in order to adjust the suspension of the seat. Turn the knob clockwise for a heavier person. Turn the knob counterclockwise for a lighter person.
Air Suspension Seat
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Illustration 15
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(35) Fore/Aft Adjustment (36) Adjustment for the suspension
Seat Adjustment Push in the knob (36) in order to increase the stiffness of the suspension. Pull the knob in order to decrease the stiffness of the suspension. Note: The engine start switch key must be in the ON position in order to increase the stiffness of the seat.
Governor Control
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Illustration 16
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Governor Control - Use the governor control when you want to set a constant engine speed. Move the lever upward in order to increase engine speed. Move the lever downward in order to decrease engine speed.
Joystick Controls The joystick control that is described in this section is for the Caterpillar Joystick Control Pattern. This pattern is the default for machines that are NOT equipped with the option for the Selectable Control Pattern or the Dedicated Control Pattern. Refer to the section "Selectable Control Pattern and Dedicated Control Pattern" below for instructions about the Alternate Joystick Control pattern and the Dedicated Control Pattern. Refer to the section "Auxiliary Hydraulic Controls" below for instructions about the Auxiliary Hydraulic Controls . Your machine may not be equipped with all of the controls that are discussed in this topic.
Left Hand Joystick
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Illustration 17
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Instruction Decal for the Left Hand Joystick
Forward Forward Travel - Push the joystick forward in order to travel forward.
Backward
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Backward Travel - Pull back on the joystick in order to travel in reverse.
Right Turn Right Turn - Move the joystick to the right in order to turn the machine to the right.
Left Turn Left Turn - Move the joystick to the left in order to turn the machine to the left.
Horn Horn - Press the switch in order to sound the horn. Use the horn in order to alert personnel.
Two Speed Control Two Speed - Press the trigger and release the trigger on the front of the left-hand joystick in order to activate rabbit mode. In order to activate rabbit mode, the Multifunction Switch must also be in the Two Speed position. Refer to "Multifunction Switch for the Left Hand Trigger (5)" above for instructions about the switch. Note: Keep the work tool close to the ground when you travel in rabbit mode. This method will maximize the stability of the machine.
Continuous Flow Control Continuous Flow - The continuous flow control supplies continuous flow of hydraulic fluid to the auxiliary hydraulic circuit without continuously holding the auxiliary hydraulic control. Press either one of the two auxiliary hydraulic switches (1) or (2) that are located on the right side joystick and hold that switch. If equipped, you may also move the thumb wheel on the right side joystick and hold the thumb wheel. Press the continuous flow switch on the left-hand joystick and release the continuous flow switch. Immediately release the auxiliary hydraulic switch or the thumb wheel after you release the continuous flow switch. The continuous flow function will be activated if the operator releases the auxiliary hydraulic switch within one second of pressing the continuous flow switch. Press on either the auxiliary hydraulic control or the continuous flow switch in order to stop the flow to the auxiliary circuit.
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Right Hand Joystick
Illustration 18
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Instruction Decal for the Right Hand Joystick
Lower Lower - Push the joystick forward in order to lower the work tool.
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Dump Dump - Move the joystick to the right in order to tilt the work tool downward.
Raise Raise - Pull the joystick backward in order to raise the work tool.
Tilt Back Tilt Back - Move the joystick to the left in order to tilt the work tool upward.
Float Float - Float allows the work tool to follow the contour of the ground. The following conditions will activate the float function on the machine. Move the joystick to the lower position and press the trigger. Float is activated. You may now release the trigger. For an earlier machine that is not updated, move the joystick to the lower position. Press the trigger and release the trigger. Float is activated. Once the float function is engaged, the joystick can be returned to the neutral position without affecting the float function. Float will remain engaged until the trigger on the right-hand joystick is pressed again. The float function will disengage also when the bucket is raised or when the bucket is lowered. Note: These changes affect the following serial numbers: (JAY3086-UP), (DWS1377-UP), (MST2570-UP), (RED1669-UP), (JWF2014-UP), (MAS1735-UP), (G1475-UP), (MBT326-UP), (JSP289-UP) and (JMP309-UP). Serial numbers earlier than the listed will be affected if the software for the machine control has been updated. Note: If the float function is enabled, the AccuGrade option is disabled.
Auxiliary Shake Out Mode Auxiliary Shake Out mode is an aggressive movement of the work tool in order to dislodge effectively wet material or sticky material. Move the thumb wheel over the NEUTRAL position three times within a 2 second period in order to activate Auxiliary Shake Out mode. Auxiliary Shake Out mode will remain engaged
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while the thumb wheel is moved back and forth over the NEUTRAL position. Normal auxiliary control mode will return when the movement of the thumb wheel is discontinued.
Selectable Control Pattern and Dedicated Control Pattern If your machine is equipped with a Selectable Control Pattern or the Dedicated Control Pattern, there are two options for the joystick control: The alert indicator "1" will light when the Caterpillar Joystick Control Pattern is activated. Refer to the section "Joystick Controls" above for instructions about the Caterpillar Joystick Control Pattern in illustration 19 and in illustration 20 with the label "1". The alert indicator "2" will light when the Alternate Joystick Control Pattern is activated. The following instructions reflect the operation of the joysticks when the Alternate Joystick Control Pattern is selected. The Alternate Joystick Control Pattern changes the control of the work tool and the movement of the machine. The changes in the control are indicated in illustration 19 and in illustration 20 with the label "2". Refer to the section "Auxiliary Hydraulic Controls" below for instructions about the Auxiliary Hydraulic Controls .
Left Hand Joystick
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Illustration 19
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Instruction Decal for the Left Hand Joystick
Forward Drive Forward - Push the left-hand joystick forward in order to move the left side of the machine forward. Push both joysticks forward equally in order to move the machine in a straight line.
Reverse Drive
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Reverse - Pull the left-hand joystick backward in order to move the left side of the machine backward. Pull both joysticks backward equally in order to move the machine backward in a straight line.
Right Turn Push the left joystick forward in order to turn the machine to the right. Push the left joystick forward and pull the right joystick backward in order to turn the machine rapidly to the right.
Horn Horn - Press the switch in order to sound the horn. Use the horn in order to alert personnel.
Two Speed Control Two Speed - Press the trigger and release the trigger on the front of the left-hand joystick in order to activate rabbit mode. In order to activate rabbit mode, the Multifunction Switch must also be in the Two Speed position. Refer to "Multifunction Switch for the Left Hand Trigger (5)" above for instructions about the switch. Note: Keep the work tool close to the ground when you travel in rabbit mode. This method will maximize the stability of the machine.
Lower Lower - Move the joystick to the right in order to lower the work tool.
Raise Raise - Move the joystick to the left in order to raise the work tool.
Continuous Flow Control Continuous Flow - The continuous flow control supplies continuous flow of hydraulic fluid to the auxiliary hydraulic circuit without continuously holding the auxiliary hydraulic control. Press either one of the two auxiliary hydraulic switches (1) or (2) that are located on the
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right side joystick and hold that switch. If equipped, you may also move the thumb wheel on the right side joystick and hold the thumb wheel. Press the continuous flow switch on the left-hand joystick and release the continuous flow switch. Immediately release the auxiliary hydraulic switch or the thumb wheel after you release the continuous flow switch. The continuous flow function will be activated if the operator releases the auxiliary hydraulic switch within one second of pressing the continuous flow switch. Press on either the auxiliary hydraulic control or the continuous flow switch in order to stop the flow to the auxiliary circuit.
Right Hand Joystick
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Illustration 20
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Instruction Decal for the Right Hand Joystick
Forward Drive Forward - Push the right-hand joystick forward in order to move the right side of the machine forward. Push both joysticks forward equally in order to move the machine forward in a straight line.
Reverse Drive Reverse - Pull the right-hand joystick backward in order to move the right side of the machine backward. Pull both joysticks backward equally in order to move the machine backward in a straight line.
Left Turn Push the right joystick forward in order to turn the machine to the left. Push the right joystick forward and pull the left joystick backward in order to turn the machine rapidly to the left.
Dump Dump - Move the joystick to the right in order to tilt the work tool downward.
Tilt Back Tilt Back - Move the joystick to the left in order to tilt the work tool upward.
Float Float - Float allows the work tool to follow the contour of the ground. The following conditions will activate the float function on the machine. Move the joystick to the lower position and press the trigger on the right-hand joystick. Float is
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activated. You may now release the trigger. For an earlier machine that is not updated, move the joystick to the lower position. Press the trigger and release the trigger. Float is activated. Once the float function is engaged, the joystick can be returned to the neutral position without affecting the float function. Float will remain engaged until the trigger on the right-hand joystick is pressed again. The float function will disengage also when the bucket is raised or when the bucket is lowered. Note: These changes affect the following serial numbers: (JAY3086-UP), (DWS1377-UP), (MST2570-UP), (RED1669-UP), (JWF2014-UP), (MAS1735-UP), (G1475-UP), (MBT326-UP), (JSP289-UP) and (JMP309-UP). Serial numbers earlier than the listed will be affected if the software for the machine control has been updated. Note: If the float function is enabled, the AccuGrade option is disabled.
Auxiliary Hydraulic Controls If the work tool has a wiring harness, connect the work tool harness to the electrical plug on the loader arm. If your High Flow work tool does not have a wiring harness, a Jumper Plug should be installed on the electrical plug for the work tool control. Without this Jumper Plug, the machine will not provide High Flow to the work tool. Refer to your Parts Manual for the current part number for the Jumper Plug. Note: High flow mode requires an electrical connection that is located on the loader arm. Refer to Operation and Maintenance Manual, "Work Tool Coupler Operation" or Operation and Maintenance Manual, "Work Tool Operation" for additional details. Note: If the high flow work tool does not have a wiring harness, consult the Operation and Maintenance Manual for the work tool for the proper instructions for attaching the work tool.
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Illustration 21
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Standard Auxiliary Connections
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Illustration 22
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High Flow Connections
Auxiliary Hydraulic Control (A1) - This control provides hydraulic oil flow to the auxiliary connections on the loader arm. Engage the control in order to provide hydraulic oil flow to the connector (K) . For high flow work tools, engage the control in order to provide hydraulic oil flow to the connector (K1) . Auxiliary Hydraulic Control (A2) - This control provides hydraulic oil flow to the auxiliary connections on the loader arm. Engage the control in order to provide hydraulic oil flow to the connector (J) . For high flow work tools, engage the control in order to provide
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hydraulic oil flow to the connector (J1) . Secondary Auxiliary Hydraulic Control (C-) - This control provides hydraulic oil flow to the auxiliary connections on the loader arm. Press the control in order to provide hydraulic oil flow to the connector (M) . Secondary Auxiliary Hydraulic Control (C+) - This control provides hydraulic oil flow to the auxiliary connections on the loader arm. Press the control in order to provide hydraulic oil flow to the connector (L) .
Auxiliary Electrical Control (E)
Illustration 23
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Typical electrical connection on the loading arm
Auxiliary Electrical Control "AUX 5" (C2) - This control provides electrical power in order to control a three-position diverter valve that is located on some work tools. Press the switch and hold the switch on the left-hand joystick in order to provide electrical power to the pin (D) . Release the switch in order to deactivate the control. Auxiliary Electrical Control "AUX 6" (C1) - This control provides electrical power in order
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to control a three-position diverter valve that is located on some work tools. Press the switch and hold the switch on the left-hand joystick in order to provide electrical power to the pin (C) . Release the switch in order to deactivate the control. Auxiliary Electrical Control "AUX 7" - Press the left hand trigger and hold the trigger in order to provide electrical power to the pin (B) . Release the trigger in order to deactivate the control. Refer to "Multifunction Switch for the Left Hand Trigger (5)" above for instructions about the switch.
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Main » Autodata » Caterpillar
Operator Controls... 246C, 256C, 262C and 272C Skid Steer Loaders Caterpillar Hydraulic BREAKER Usage: 256C DWS 297C G 246C JAY 289C JMP 299C JSP 277C JWF 287C MAS 279C MBT 262C MST 272C RED
Note: Your machine may not be equipped with all of the controls that are discussed in this topic. The operation section is a reference for the new operator and a refresher for the experienced operator. This section includes descriptions of gauges, switches, machine controls, attachment controls, transportation, and towing information. Illustrations guide the operator through correct procedures of checking, starting, operating, and stopping the machine. Operating techniques that are outlined in this publication are basic. Skill and techniques develop as the operator gains knowledge of the machine and the capabilities of the machine. Note: Simple hydromechanical work tools may be shipped without hydraulic oil. Uneven movement may occur until all the air has been removed from the work tool. You may need to add hydraulic oil to the machine after the machine fills the circuits of the work tool. Refer to Operation and Maintenance Manual, "Hydraulic System Oil Level - Check" for the proper procedure for checking the hydraulic oil level. Note: If the machine is not equipped with a cab that is enclosed, Caterpillar recommends the use of a flying object guard. If the machine is equipped with an enclosed cab, operate the machine with the cab door in the CLOSED position.
Left Side Controls
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Illustration 1
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(1) Auxiliary Hydraulic Pressure Release (2) Hydraulic Lockout and Interlock Override (3) Rear Work Lights (4) Front Work Lights (5) Multifunction Switch for the Left Hand Trigger (6) Auxiliary Electrical Control (7) Automatic Level Control (8) Work Tool Coupler Control
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(9) Fuel Level Gauge (10) Service Hour Meter (11) Joystick Control Pattern (12) Parking Brake (13) Engine Start Switch (14) 12 volt Plug (15) Window Wiper and Window Washer (16) Alert Indicator
Auxiliary Hydraulic Pressure Release (1)
Personal injury or death can result from the work tool falling. Fully lower the loader arms before you release the hydraulic system pressure. ---------------------Auxiliary Hydraulic Pressure Release - After the engine has run in order to charge the accumulator, turn the ignition switch to the OFF position. Turn the ignition switch to the ON position. Release the parking brake. Push up on the locking tab and press the bottom of the switch in order to release the pressure in the Standard Flow Auxiliary Circuit and the High Flow Auxiliary Circuit. Hold the switch for 4 to 5 seconds and release the switch. Note: The operator must remain in the seat with the armrests in the LOWERED position in order for the control to function. If equipped, the front door must be closed. Note: The pressure in the secondary circuit is not affected by this switch. Refer to Operation and Maintenance Manual, "Work Tool Coupler Operation : Secondary Auxiliary Circuit" for the procedure to release the pressure.
Hydraulic Lockout and Interlock Override (2) Hydraulic Lockout - Press the top of the switch in order to disable the hydraulic functions. Return the switch to the middle position in order to activate the hydraulic functions. Note: Activate the hydraulic shutoff when you are roading the machine in order to prevent unplanned movement of the work tool and the loader arms.
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Interlock Override - The interlock override allows the auxiliary hydraulic circuits to function with the armrests in the RAISED position. First bring the machine to a complete stop. Activate the continuous flow control that is located on the left side joystick. Refer to the section "Joystick Controls" for detailed information. Press the bottom of the interlock override switch and release the switch in order to activate the interlock override function. In order to turn off the interlock override and continuous flow, press the bottom of the switch and release the switch again.
Inadvertent movement of the work tool may occur if the interlock override function is used with work tools. This may result in personal injury or death. Only use interlock override function for hand-held work tools. ---------------------Note: The alert indicator for the parking brake will light when the interlock override is activated. When the interlock override is deactivated, press the parking brake switch in order to disengage the parking brake and activate the hydraulic functions.
NOTICE Do not leave the machine unattended while you have the interlock override function activated.
Switch on the Cab Door A switch is provided on the cab door that prevents the work tool from operating when the cab door is open. If the cab door is not installed, install a jumper wire between Terminal 2 and Terminal 4 in the wiring harness connector for the Window Wiper. Refer to Special Instruction, REHS1738, "Installing the Cab Door and Mounting Group" for more information about the cab door. Note: When the door is installed, remove the jumper wire from the connector plug before you connect the harness. Damage to the door could occur if the jumper is left in place.
Rear Work Lights (3)
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Rear Work Lights - Press the bottom of the switch in order to turn on the lights. Press the top of the switch in order to turn off the lights.
Front Work Lights (4) Front Work Lights - Press the bottom of the switch in order to turn on the lights. Press the top of the switch in order to turn off the lights.
Multifunction Switch for the Left Hand Trigger (5) This switch is used to toggle the function of the trigger on the left-hand joystick between Two Speed and the Auxiliary Electrical Function "AUX 7".
Two Speed Two Speed - Push the top of the switch in order to use the trigger for the two speed control. Press the trigger and release the trigger on the front of the left-hand joystick in order to activate rabbit mode. In order to return to single speed, press the trigger and release the trigger again. Note: Keep the work tool close to the ground when you travel in rabbit mode. This method will maximize the stability of the machine. Note: Do not move the multifunction switch while the Two Speed function is active. Ensure that the machine is in single speed mode before the Auxiliary Electrical Function "AUX 7" is activated. Note: The creeper must be turned off in order to shift the machine into two speed. If you activate the creeper, the machine will return to single speed. If you set the parking brake, the machine will return to low speed.
Auxiliary Electrical Function "AUX 7" Note: If the switch is not present, the trigger on the left-hand joystick only provides this auxiliary function. Auxiliary Electrical Function "AUX 7" - Push the bottom of the switch in order to activate the seventh auxiliary electrical function. Pull the trigger and hold the trigger on the lefthand joystick in order to provide electrical power to pin (B) on the work tool connector on the loader arm. Release the trigger in order to deactivate the control.
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Auxiliary Electrical Control "AUX 8"
Illustration 2
g01107114
Typical electrical connection on the loading arm
Auxiliary Electrical Control "AUX 8" (6) - The auxiliary electrical control supplies continuous electrical power to pin (H) on the connector for the work tool on the loader arm. Press on the bottom of the switch in order to turn on electrical power. Press on the top of the switch in order to turn off electrical power.
Automatic Level Control (7) Automatic Level Control - The Automatic Level Control maintains the approximate selected angle of the work tool as the loader lift arms are raised. Press on the bottom of the switch in order to activate the automatic level control. Press on the top of the switch in order to deactivate the automatic level control. Note: The Automatic Level Control keeps a load at the selected angle when the lift arms are raised. The Automatic Level Control is not designed to maintain the selected angle of the work tool when the lift arms are lowered. Note: If Automatic Level Control and Ride Control are selected, Ride Control will be activated at the Activation Speed and the Automatic Level Control will be deactivated. When the machine
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reaches the Deactivation speed, the Ride Control will be deactivated and the Automatic Level Control will be activated. Refer to the section on "Ride Control" for more details.
Work Tool Coupler Control (8)
Improper Attachment of the Work Tool could result in injury or death. Do not operate the machine without confirmation that the coupler pins are fully engaged. Follow the operating procedures in the Operation and Maintenance Manual. ---------------------Work Tool Coupler Control - The work tool coupler control controls the engagement of the coupler pins. Disengaged - Push the red button upward and press the bottom of the switch. Hold the switch in the downward position until the coupler pins disengage. Engaged - Press the top of the switch and hold the top of the switch until the coupler pins engage. Refer to Operation and Maintenance Manual, "Work Tool Coupler Operation" for the proper procedure for the work tool coupler.
Fuel Level Gauge (9) Fuel Level Gauge - The needle in the red range indicates low fuel.
Service Hour Meter (10) Service Hour Meter - The service hour meter should be used to determine service hour maintenance intervals.
Joystick Control Pattern (11) The switch for the Joystick Control Pattern has a number "1" on one side and a number "2" on the other side. When you start the machine, choose "1 - Caterpillar" or "2 - Alternate" in order to release the parking brake. The numbers on the Alert Indicator will blink until a pattern is selected. Once a pattern has been selected, activating the parking brake will not affect the selection of the pattern. Refer to the section "Joystick Controls" for detailed information.
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Parking Brake Control (12) Parking Brake Control - Press on the right side of the switch and release the switch in order to engage the parking brake. The same operation will disengage the parking brake. Note: The parking brake will engage when the engine is stopped. The parking brake will engage when the armrests are moved to the RAISED position. The parking brake will engage when the operator leaves the operator seat for a time. The parking brake will engage when the interlock override is activated. Note: If the switch for the Joystick Control Pattern is installed, select a pattern in order to release the parking brake.
Engine Start Switch (13) OFF - Insert the engine start switch key only from the OFF position and remove the engine start switch key only from the OFF position. Turn the engine start switch key to the OFF position in order to stop the engine. In the OFF position, there is no power to most electrical circuits on the machine. The cab dome light is operational even when the engine start switch is in the OFF position. ON - Turn the engine start switch key clockwise to the ON position in order to activate all of the cab circuits. START - Turn the engine start switch key clockwise to the START position in order to crank the engine. Release the engine start switch key after the engine starts and the engine start switch key returns to the ON position. Note: If the engine fails to start, the turn the engine start switch key to the OFF position in order to attempt to start the engine again. Refer to the Operation and Maintenance Manual, "Engine Starting" for more details about starting the engine.
12 volt plug (14) 12 volt plug
Window Wiper and Window Washer (15) Window Wiper and Window Washer - Move the switch to the middle position in order to turn on the wiper. Press on the top of the switch in order to operate the washer. Press on the bottom of the switch in order to turn off the wipers.
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Alert Indicator (16) Refer to the section Operator and Maintenance Manual, "Alert Indicators" for a description about the indicators.
Right Side Controls
Illustration 3
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(17) Coolant Temperature (18) Hydraulic Oil Temperature (19) Digital Display Window (20) Beacon Switch (21) Hazard Flashers (22) Roading Lights (23) Turn Signals
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(24) Creeper Control (25) Ride Control (26) Fan Speed Control (27) Air Conditioning Control (28) Temperature Control
Coolant Temperature (17) Coolant Temperature gauge
Hydraulic Oil Temperature (18) Hydraulic Oil Temperature gauge
Digital Display Window (19) Refer to the section "Digital Display Window" for detailed information.
Beacon Switch (20) Beacon - Press on the left side of the switch in order to turn on the beacon. Press the right side of the switch in order to turn off the beacon. The receptacle for the beacon is located on the upper left corner on the rear of the cab.
Hazard Flashers (21) Hazard Flasher Control - Press on the left side of the switch in order to activate the hazard flashers. Press on the right side of the switch in order to deactivate the hazard flashers.
Roading Lights (22) Roading Lights - Move the switch to the middle position in order to turn on the control lights and position lights. Press on the left side of the switch in order to turn on the front low beams. Press on the right side of the switch in order to turn off the lights.
Turn Signals (23) Turn Signals - Press on the left side of the switch in order to turn on the left turn signals. Press on the right side of the switch in order to turn on the right turn signals. Move the
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switch to the middle position in order to turn off the turn signals.
Creeper Control (24) The Creeper Control allows the operator to select a maximum machine travel speed at full joystick movement. Use creeper control for operations that require slow, constant speed. Creeper Control - In order to activate the creeper control, stop the machine and return the joysticks to the neutral position. Press the bottom of the switch in order to turn on the creeper control. In order to deactivate the creeper control, stop the machine and return the joysticks to the neutral position. Press the top of the switch in order to turn off the creeper control. Refer to "Digital Display Window" for detailed information about the creeper speed control.
Ride Control (25) Ride Control assists in smoothing the ride of the machine. Travel over rough terrain causes bucket movement. The ride control system uses the lift cylinders as shock absorbers. The lift cylinders dampen the forces from the bucket. Ride Control - Press the bottom of the switch in order to turn on the ride control. Ride control will activate and the alert indicator will illuminate at the appropriate speed. Press the top of the switch in order to turn off the ride control. Note: The ride control will deactivate and the indicator will not be illuminated at the appropriate speed. The ride control will also deactivate if the tilt function for the work tool is operated. The following approximate speeds apply: Activation speed - 8 km/h (5.0 mph) for Ride Control Deactivation speed - 6 km/h (3.7 mph) for Ride Control. Note: If Automatic Level Control and Ride Control is selected, Ride Control will be activated at the Activation Speed and the Automatic Level Control will be deactivated. When the machine reaches the Deactivation speed, the Ride Control will be deactivated and the Automatic Level Control will be activated.
Fan Speed Control (26) Fan Speed Control
Air Conditioner Control (27)
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Air Conditioner Control
Temperature Control (28) Temperature Control
Digital Display Window
Illustration 4
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(29) Digital Display Window (30) Scroll Up Key (31) Scroll Down Key (32) Function Selector
General Description The digital display window (29) shows some basic information about the machine. The Engine Speed, System Voltage, Job Clock, Work tool Control, "Drive Mode Control", and Creeper Control are displayed. The digital display window is used to set the work tool control. The digital display window is used to set the Creeper Control. The Function Selector (32) is used to toggle between modes that are available: Operator Mode 1 - Display Screen Operator Mode 2 - Work Tool Control Operator Mode 3 - Drive Mode Control Operator Mode 4 - Creeper Control The scroll up key (30) and the scroll down key (31) are used to toggle between screens or settings in a mode. In order to display the AccuGrade menu, press the scroll down key (31) and press the function key (32) at the same time. Refer to the AccuGrade section below.
Operator Mode 1 - Display Screen Three displays are available in this mode: Digital Tachometer, System Voltage and Job Clock.
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Illustration 5
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Representation of the Digital Tachometer (default start-up mode)
Illustration 6
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Representation of the System Voltage
Illustration 7
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Representation of the Job Clock
The default start-up mode is the Digital Tachometer. Use the "Scroll Up" button and the "Scroll Down" button in order to change the screen. The Job Clock can be reset by holding the "Scroll Up" and the "Scroll Down" buttons for 3 seconds.
Operator Mode 2 - Work Tool Control In Operator Mode 1, push the "Function Selector" button 1 time. The "Work Tool Control" screen is used in order to display the current setting for the response of the lift and tilt functions of the machine. Use the "Scroll Up" button and the "Scroll Down" button in order to change to a different setting.
Illustration 8
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Representation of the Work Tool Control
The Work Tool Control mode has three settings: Fine Control - 1 Bar Medium Control - 2 Bars Coarse Control - 3 Bars Note: The Work Tool Control setting will not change when the ignition switch is turned off.
Operator Mode 3 - Drive In Operator Mode 1, push the "Function Selector" button 2 times. The "Drive Mode Control"
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screen is used in order to display the current setting of the "Drive Mode Control" functions. Use the "Scroll Up" button and the "Scroll Down" button in order to change to a different setting.
Illustration 9
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Representation of the "Drive Mode Control"
The "Drive Mode Control" has three settings: Standard Mode - 1 Bar Intermediate Mode - 2 Bars Maximum Mode - 3 Bars Note: The "Drive Mode Control" setting will not change when the ignition switch is turned off. Note: The machine will start, stop, and steer more aggressively with each progressive drive control mode. Test drive the machine in an open area in order to test the operating characteristics of the machine.
Operator Mode 4 - Creeper Control In Operator Mode 1, push the "Function Selector" button 3 times. The "Creeper Control" screen is used in order to display the current setting for the creeper control. Use the "Scroll Up" button and the "Scroll Down" button in order to change to a different setting for the Creeper Control. Note: The "Creeper Control" setting will not change when the ignition switch is turned off. Refer to the section "Creeper Control" for operation of the switch.
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Illustration 10
g01242658
Representation of the Creeper Control
The Creeper Control has the following ten settings: Table 1 Setting
Approximate Percent of Full Speed
1
5%
2
7%
3
10%
4
13%
5
17%
6
24%
7
37%
8
57%
9
80%
10
100%
Setting 10 - The "MAX" icon will appear at the maximum setting.
AccuGrade (If Equipped)
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The following instructions are a quick reference for the AccuGrade. For detailed instructions for the AccuGrade, refer to the Operation and Maintenance Manual, SEBU8278. 1. Ensure that the Laser Receiver is attached to the work tool and attached to the machine properly. 2. In order to display the AccuGrade menu, press the scroll down key (31) and press function key (32) at the same time. 3. In order to set the benchmark, press the scroll up key (30) and press the scroll down key (31) at the same time. Hold the keys until the value is set in the computer (approximately 3 seconds). The screen will display a "0" and the screen will flash once. 4. Press the trigger and release the trigger on the right-hand joystick in order to enable the AccuGrade automatic controls. Operate the implement joystick or operate the thumb wheel in order to override the automatic controls temporarily. 5. Press the trigger and release the trigger on the right-hand joystick in order to disable the AccuGrade automatic controls. 6. Press the scroll up key (30) and hold the scroll up key in order to exit AccuGrade.
Other Features in the Cab
Cab Dome Light Cab Dome Light - Press on either side of the light in order to turn on the light. Move the light to the middle position in order to turn off the light.
Interlock Control
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Illustration 11
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Armrests
Interlock Control - Move the armrests to the RAISED position in order to lock out the hydraulic controls. Note: When the armrests are moved to the RAISED position, the parking brake will engage. Move the armrests to the LOWERED position and push the switch for the parking brake in order to activate the hydraulic controls. Note: When you start the engine, the parking brake must be disengaged in order for the hydraulic controls to be activated. If the armrests are raised and lowered during operation, disengage the parking brake in order for the hydraulic controls to be activated.
Accelerator Control
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Illustration 12
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g01231723
Accelerator Control - Push down on the accelerator pedal in order to increase engine speed. Release the accelerator pedal in order to decrease engine speed. The accelerator pedal will return to the setting of the governor control.
Standard Seat
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Illustration 13
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g01231724
(35) Fore/Aft Adjustment
Standard Seat
Suspension Seat
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Illustration 14
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g01243184
(35) Fore/Aft Adjustment (37) Adjustment for the suspension
Fore/Aft lever (35) - Move the lever in order to adjust the seat. Height (37) - Turn the knob in order to adjust the suspension of the seat. Turn the knob clockwise for a heavier person. Turn the knob counterclockwise for a lighter person.
Air Suspension Seat
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Illustration 15
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g01231726
(35) Fore/Aft Adjustment (36) Adjustment for the suspension
Seat Adjustment Push in the knob (36) in order to increase the stiffness of the suspension. Pull the knob in order to decrease the stiffness of the suspension. Note: The engine start switch key must be in the ON position in order to increase the stiffness of the seat.
Governor Control
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Illustration 16
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g01231729
Governor Control - Use the governor control when you want to set a constant engine speed. Move the lever upward in order to increase engine speed. Move the lever downward in order to decrease engine speed.
Joystick Controls The joystick control that is described in this section is for the Caterpillar Joystick Control Pattern. This pattern is the default for machines that are NOT equipped with the option for the Selectable Control Pattern or the Dedicated Control Pattern. Refer to the section "Selectable Control Pattern and Dedicated Control Pattern" below for instructions about the Alternate Joystick Control pattern and the Dedicated Control Pattern. Refer to the section "Auxiliary Hydraulic Controls" below for instructions about the Auxiliary Hydraulic Controls . Your machine may not be equipped with all of the controls that are discussed in this topic.
Left Hand Joystick
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Illustration 17
g01259300
Instruction Decal for the Left Hand Joystick
Forward Forward Travel - Push the joystick forward in order to travel forward.
Backward
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Backward Travel - Pull back on the joystick in order to travel in reverse.
Right Turn Right Turn - Move the joystick to the right in order to turn the machine to the right.
Left Turn Left Turn - Move the joystick to the left in order to turn the machine to the left.
Horn Horn - Press the switch in order to sound the horn. Use the horn in order to alert personnel.
Two Speed Control Two Speed - Press the trigger and release the trigger on the front of the left-hand joystick in order to activate rabbit mode. In order to activate rabbit mode, the Multifunction Switch must also be in the Two Speed position. Refer to "Multifunction Switch for the Left Hand Trigger (5)" above for instructions about the switch. Note: Keep the work tool close to the ground when you travel in rabbit mode. This method will maximize the stability of the machine.
Continuous Flow Control Continuous Flow - The continuous flow control supplies continuous flow of hydraulic fluid to the auxiliary hydraulic circuit without continuously holding the auxiliary hydraulic control. Press either one of the two auxiliary hydraulic switches (1) or (2) that are located on the right side joystick and hold that switch. If equipped, you may also move the thumb wheel on the right side joystick and hold the thumb wheel. Press the continuous flow switch on the left-hand joystick and release the continuous flow switch. Immediately release the auxiliary hydraulic switch or the thumb wheel after you release the continuous flow switch. The continuous flow function will be activated if the operator releases the auxiliary hydraulic switch within one second of pressing the continuous flow switch. Press on either the auxiliary hydraulic control or the continuous flow switch in order to stop the flow to the auxiliary circuit.
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Right Hand Joystick
Illustration 18
g01259303
Instruction Decal for the Right Hand Joystick
Lower Lower - Push the joystick forward in order to lower the work tool.
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Dump Dump - Move the joystick to the right in order to tilt the work tool downward.
Raise Raise - Pull the joystick backward in order to raise the work tool.
Tilt Back Tilt Back - Move the joystick to the left in order to tilt the work tool upward.
Float Float - Float allows the work tool to follow the contour of the ground. The following conditions will activate the float function on the machine. Move the joystick to the lower position and press the trigger. Float is activated. You may now release the trigger. For an earlier machine that is not updated, move the joystick to the lower position. Press the trigger and release the trigger. Float is activated. Once the float function is engaged, the joystick can be returned to the neutral position without affecting the float function. Float will remain engaged until the trigger on the right-hand joystick is pressed again. The float function will disengage also when the bucket is raised or when the bucket is lowered. Note: These changes affect the following serial numbers: (JAY3086-UP), (DWS1377-UP), (MST2570-UP), (RED1669-UP), (JWF2014-UP), (MAS1735-UP), (G1475-UP), (MBT326-UP), (JSP289-UP) and (JMP309-UP). Serial numbers earlier than the listed will be affected if the software for the machine control has been updated. Note: If the float function is enabled, the AccuGrade option is disabled.
Auxiliary Shake Out Mode Auxiliary Shake Out mode is an aggressive movement of the work tool in order to dislodge effectively wet material or sticky material. Move the thumb wheel over the NEUTRAL position three times within a 2 second period in order to activate Auxiliary Shake Out mode. Auxiliary Shake Out mode will remain engaged
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while the thumb wheel is moved back and forth over the NEUTRAL position. Normal auxiliary control mode will return when the movement of the thumb wheel is discontinued.
Selectable Control Pattern and Dedicated Control Pattern If your machine is equipped with a Selectable Control Pattern or the Dedicated Control Pattern, there are two options for the joystick control: The alert indicator "1" will light when the Caterpillar Joystick Control Pattern is activated. Refer to the section "Joystick Controls" above for instructions about the Caterpillar Joystick Control Pattern in illustration 19 and in illustration 20 with the label "1". The alert indicator "2" will light when the Alternate Joystick Control Pattern is activated. The following instructions reflect the operation of the joysticks when the Alternate Joystick Control Pattern is selected. The Alternate Joystick Control Pattern changes the control of the work tool and the movement of the machine. The changes in the control are indicated in illustration 19 and in illustration 20 with the label "2". Refer to the section "Auxiliary Hydraulic Controls" below for instructions about the Auxiliary Hydraulic Controls .
Left Hand Joystick
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Illustration 19
g01259305
Instruction Decal for the Left Hand Joystick
Forward Drive Forward - Push the left-hand joystick forward in order to move the left side of the machine forward. Push both joysticks forward equally in order to move the machine in a straight line.
Reverse Drive
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Reverse - Pull the left-hand joystick backward in order to move the left side of the machine backward. Pull both joysticks backward equally in order to move the machine backward in a straight line.
Right Turn Push the left joystick forward in order to turn the machine to the right. Push the left joystick forward and pull the right joystick backward in order to turn the machine rapidly to the right.
Horn Horn - Press the switch in order to sound the horn. Use the horn in order to alert personnel.
Two Speed Control Two Speed - Press the trigger and release the trigger on the front of the left-hand joystick in order to activate rabbit mode. In order to activate rabbit mode, the Multifunction Switch must also be in the Two Speed position. Refer to "Multifunction Switch for the Left Hand Trigger (5)" above for instructions about the switch. Note: Keep the work tool close to the ground when you travel in rabbit mode. This method will maximize the stability of the machine.
Lower Lower - Move the joystick to the right in order to lower the work tool.
Raise Raise - Move the joystick to the left in order to raise the work tool.
Continuous Flow Control Continuous Flow - The continuous flow control supplies continuous flow of hydraulic fluid to the auxiliary hydraulic circuit without continuously holding the auxiliary hydraulic control. Press either one of the two auxiliary hydraulic switches (1) or (2) that are located on the
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right side joystick and hold that switch. If equipped, you may also move the thumb wheel on the right side joystick and hold the thumb wheel. Press the continuous flow switch on the left-hand joystick and release the continuous flow switch. Immediately release the auxiliary hydraulic switch or the thumb wheel after you release the continuous flow switch. The continuous flow function will be activated if the operator releases the auxiliary hydraulic switch within one second of pressing the continuous flow switch. Press on either the auxiliary hydraulic control or the continuous flow switch in order to stop the flow to the auxiliary circuit.
Right Hand Joystick
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Illustration 20
g01259306
Instruction Decal for the Right Hand Joystick
Forward Drive Forward - Push the right-hand joystick forward in order to move the right side of the machine forward. Push both joysticks forward equally in order to move the machine forward in a straight line.
Reverse Drive Reverse - Pull the right-hand joystick backward in order to move the right side of the machine backward. Pull both joysticks backward equally in order to move the machine backward in a straight line.
Left Turn Push the right joystick forward in order to turn the machine to the left. Push the right joystick forward and pull the left joystick backward in order to turn the machine rapidly to the left.
Dump Dump - Move the joystick to the right in order to tilt the work tool downward.
Tilt Back Tilt Back - Move the joystick to the left in order to tilt the work tool upward.
Float Float - Float allows the work tool to follow the contour of the ground. The following conditions will activate the float function on the machine. Move the joystick to the lower position and press the trigger on the right-hand joystick. Float is
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activated. You may now release the trigger. For an earlier machine that is not updated, move the joystick to the lower position. Press the trigger and release the trigger. Float is activated. Once the float function is engaged, the joystick can be returned to the neutral position without affecting the float function. Float will remain engaged until the trigger on the right-hand joystick is pressed again. The float function will disengage also when the bucket is raised or when the bucket is lowered. Note: These changes affect the following serial numbers: (JAY3086-UP), (DWS1377-UP), (MST2570-UP), (RED1669-UP), (JWF2014-UP), (MAS1735-UP), (G1475-UP), (MBT326-UP), (JSP289-UP) and (JMP309-UP). Serial numbers earlier than the listed will be affected if the software for the machine control has been updated. Note: If the float function is enabled, the AccuGrade option is disabled.
Auxiliary Hydraulic Controls If the work tool has a wiring harness, connect the work tool harness to the electrical plug on the loader arm. If your High Flow work tool does not have a wiring harness, a Jumper Plug should be installed on the electrical plug for the work tool control. Without this Jumper Plug, the machine will not provide High Flow to the work tool. Refer to your Parts Manual for the current part number for the Jumper Plug. Note: High flow mode requires an electrical connection that is located on the loader arm. Refer to Operation and Maintenance Manual, "Work Tool Coupler Operation" or Operation and Maintenance Manual, "Work Tool Operation" for additional details. Note: If the high flow work tool does not have a wiring harness, consult the Operation and Maintenance Manual for the work tool for the proper instructions for attaching the work tool.
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Illustration 21
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g01291620
Standard Auxiliary Connections
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Illustration 22
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g01210266
High Flow Connections
Auxiliary Hydraulic Control (A1) - This control provides hydraulic oil flow to the auxiliary connections on the loader arm. Engage the control in order to provide hydraulic oil flow to the connector (K) . For high flow work tools, engage the control in order to provide hydraulic oil flow to the connector (K1) . Auxiliary Hydraulic Control (A2) - This control provides hydraulic oil flow to the auxiliary connections on the loader arm. Engage the control in order to provide hydraulic oil flow to the connector (J) . For high flow work tools, engage the control in order to provide
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hydraulic oil flow to the connector (J1) . Secondary Auxiliary Hydraulic Control (C-) - This control provides hydraulic oil flow to the auxiliary connections on the loader arm. Press the control in order to provide hydraulic oil flow to the connector (M) . Secondary Auxiliary Hydraulic Control (C+) - This control provides hydraulic oil flow to the auxiliary connections on the loader arm. Press the control in order to provide hydraulic oil flow to the connector (L) .
Auxiliary Electrical Control (E)
Illustration 23
g01107114
Typical electrical connection on the loading arm
Auxiliary Electrical Control "AUX 5" (C2) - This control provides electrical power in order to control a three-position diverter valve that is located on some work tools. Press the switch and hold the switch on the left-hand joystick in order to provide electrical power to the pin (D) . Release the switch in order to deactivate the control. Auxiliary Electrical Control "AUX 6" (C1) - This control provides electrical power in order
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to control a three-position diverter valve that is located on some work tools. Press the switch and hold the switch on the left-hand joystick in order to provide electrical power to the pin (C) . Release the switch in order to deactivate the control. Auxiliary Electrical Control "AUX 7" - Press the left hand trigger and hold the trigger in order to provide electrical power to the pin (B) . Release the trigger in order to deactivate the control. Refer to "Multifunction Switch for the Left Hand Trigger (5)" above for instructions about the switch.
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Spare parts Volvo penta parts catalog The names Cat, Caterpillar, John Deere, Komatsu, Volvo, Hitachi, Doosan, JCB, Hyundai or any other original equipment manufacturers are ed trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only. AVSpare.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only. Cat® and Caterpillar® are ed trademarks of Caterpillar, Inc.
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