| |
| Illustration 1 | g01018631 |
|
(1) Front Brake Switch
(2) Multifunction Switch (3) Horn (4) Power switch for the Truck Payload Measurement System (TPMS) (5) Test switch for the Truck Payload Measurement System (TPMS) (6) Green Load Indicator Light (7) Payload Operator Display (POD) (8) Red Load Indicator Light (9) Hazard Flasher Switch (10) Exhaust Diverter Switch (If Equipped) (11) Throttle Backup Switch (12) Headlight Switch (13) Ether Starting Aid Switch (If Equipped) (14) Air Conditioner Switch (15) Switch for Automatic Retarder Control (16) Switch for Body Up Sound Reduction (17) Traction Control Switch (18) Mode Scroll Switch (19) Brake Release and Secondary Steering Switch (20) Fan Speed Switch (21) Temperature Control (22) Start Switch (23) Retarder Control Lever (24) Accelerator (25) Transmission Control Lever (26) Parking Brake Switch (27) Parking Brake Reset Valve (28) Service Brake Pedal (29) Secondary Brake Pedal (30) Hoist Control Lever (31) Hoist Control (Raise) (32) Hoist Control (Hold) (33) Hoist Control (Float) (34) Hoist Control (Lower) (35) Power Window Switch (36) Lever for Steering Column Tilt Control | |
| |
| Illustration 2 | g01018630 |
|
(1) Front Brake Control (Switch) - Switch (1) allows the front brake to be turned ON or OFF. Refer to Operation and Maintenance Manual, "Braking" for more information. |
Note: The front brake switch (1) should be in the ON position during normal operation.
Multifunction switch (2) controls the window wipers, the brightness of the headlights, and the turn signals.
|
Window Wipers |
|
Window Washer |
|
|
Dimmer Switch |
|
Turn Signals |
Press the large button in the center of the steering wheel to sound the horn.
Truck Payload Measurement System (TPMS) (4 - 8)
Refer to Operation and Maintenance Manual, "Truck Payload Measurement System (TPMS)" for more information.
TPMS Switch (4) - This switch provides power to the TPMS.
Test Switch for the TPMS Module (5) - Hold the switch in the test position to display a test of the Payload Operator Display (POD), an external lamp test, and a test of the load indicator lights.
Green Load Indicator Light (6) - This indicator light shows the status of the corresponding external load indicator light.
Payload Operator Display (POD) (7) - This display is used to show the weight of the payload in tons or in metric tonnes. The POD will also display service codes if a malfunction is detected.
Red Load Indicator Light (8) - This indicator light shows the status of the corresponding external load indicator light.
|
Hazard Flashers - Push the top half of switch (9) to turn on the hazard flashers. Push the bottom half of switch (9) to turn off the hazard flashers. |
Exhaust Diverter Switch (If Equipped) (10)
|
Exhaust Diverter Switch (10) - The switch can be set in the MUFFLER position or the AUTO position. |
If the switch is in the MUFFLER position, the exhaust is sent through the muffler at all times. The MUFFLER position is used when it is not necessary to heat the body.
If the switch is in the AUTO position, the exhaust will be sent through the muffler only when the body is raised. At any other time, the exhaust will be sent through the body. The AUTO position is used when it is necessary to heat the body.
| |
| Illustration 3 | g01018628 |
|
Throttle Backup Switch (11) - If the throttle position sensor on the accelerator does not function, use throttle backup switch (11) to raise the engine RPM above low idle to allow transportation to a service area. Place the transmission control lever in the desired gear. Hold switch (11) in the depressed position. While switch (11) is held in the depressed position, the engine RPM will raise from 650 RPM to 1300 RPM. When switch (11) is released, the engine RPM will return to 650 RPM. |
|
|
Headlight Switch (12) - The headlight switch is a three-position switch. Push the top half of the switch to the first detent to activate the parking lights and the taillights. Push the top half of the switch to the second detent to activate the headlights, the parking lights, and the taillights. Push the bottom half of the switch to turn off all the headlights, the parking lights, and the taillights. |
Ether Starting Aid Switch (13)
|
Ether Starting Aid Switch (13) - The ether starting aid switch controls the use of the ether starting aid. |
Normally, the ether injection system will operate automatically. The ether injection system will inject a selected amount of ether into the engine during starting, if necessary.
If the engine does not start or if the engine runs rough, the ether can be manually injected. Leave the engine start switch in the ON position. Push the top half of the ether starting aid switch (13). This causes the ether to be injected for an additional five seconds after the standard cycle has been completed.
Air Conditioner Switch (If Equipped) (14)
|
Air Conditioner Switch (14) (If Equipped) - Push the upper half of the switch to activate the air conditioner. Push the lower half of the switch to deactivate the air conditioner. Refer to Operation and Maintenance Manual, "Heating and Air Conditioning Control" for more information. |
Automatic Retarder Control (If Equipped) (15)
|
Switch for Automatic Retarder Control (ARC) (15) - Push the top half of the switch to select the ON position for the ARC. Push the bottom half of the switch to select the OFF position for the ARC. |
Switch (15) for the ARC should remain in the ON position during normal operation. When you place switch (15) in the OFF position, the ARC will not control engine speed. The ARC continues to perform overspeed protection when switch (15) is in the OFF position.
If necessary, use retarder control lever (23) to apply more retarding force during the operation of the ARC. Refer to Operation and Maintenance Manual, "Retarding" for additional information.
Body Up Sound Reduction Switch (16)
|
Body Up Sound Reduction Switch (16) - This switch reduces the high idle speed of the engine to 1600 RPM when the body is raised. This reduces the sound levels from the exhaust for the operator and nearby personnel. |
Traction Control System Switch (17)
|
Traction Control System Switch (17) - Press and hold the top half of Traction Control System switch (17) to test the TCS. Release the switch to end the test of the TCS. |
Note: This procedure determines whether the Traction Control System (TCS) is functioning. This procedure also determines if the left rear brake and the right rear brake engage at the correct time.
- Find an area that is clear and level. Also, the area must be large enough to safely drive the machine in a complete circle. Start the machine and move the transmission direction and speed control lever to the first gear FORWARD.
- Position the machine for a counterclockwise circle. Turn the steering wheel all the way to the left. With the engine at low idle, drive the machine in a complete circle.
- During the turn, press the TCS test switch (17) and hold the switch (17) in the ON position.
- The machine will gradually come to a stop. The right brake will then disengage and the machine will accelerate. This sequence will repeat as the machine drives in a circle.
- Release the test switch.
- Position the machine for a clockwise circle. Turn the steering wheel all the way to the right. With the engine at low idle, drive the machine in a complete circle.
- During the turn, press the TCS test switch and hold the switch in the ON position.
- The machine will gradually come to a stop. The left brake will then disengage and the machine will accelerate. This sequence will repeat as the machine drives in a circle.
- Release the test switch.
- If the TCS did not function properly, consult your Caterpillar dealer for information and service.
|
Mode Scroll Switch (18) - Press the top half of the switch to scroll through the operator modes. |
Service Meter - In this mode, the six-digit display area will show the total number of machine operating hours. An indicator light will show that the display is operating in the service meter mode.
The display will show a E when ether is being injected. If there is an active fault, "SERV CODE" is displayed in the upper right-hand corner of the display. If "SERV CODE" is displayed during normal operation, an existing problem should be addressed.
Odometer - In this mode, the six-digit display area will show the total distance that has been Traveled by the machine. This measurement can be displayed in "MILES" or "KM".
Digital Tachometer - In this mode, the engine RPM will be displayed in the six-digit display area.
Resettable Load Counter - In this mode, the six-digit display area will show the number of loads since the last reset by the operator. The counter registers one load whenever the body is raised. This counter may be reset by pressing either of the switches that are located on the fuse panel.
Diagnostic Scrolling - In this mode, the display area will show the faults that have been detected by the message center. Faults cannot be cleared in this mode. Also, faults may not be placed on hold. The service code will only be displayed when the fault is active.
Brake Release and Secondary Steering Switch (19)
|
Brake Release and Secondary Steering Switch (19) - Push the top half of the switch to move the switch to the MANUAL position. This activates the brake release and secondary steering pump. Push the bottom half of switch (1) to move the switch to the AUTO position. |
The brake release and secondary steering pump provides oil to the secondary steering system. Also, this pump can be used to disengage the parking brakes. See Operation Manual, "Steering System - Test" and Operation Manual, "Towing with Inoperable Engine" for additional information.
|
Fan Speed Control (20) - This control operates the four-speed blower fan motor for heating and for the air conditioner. Turn the knob anywhere between OFF position (left) and MAXIMUM position (right). Refer to Operation and Maintenance Manual, "Heating and Air Conditioning Control" for more information. |
|
Temperature Control (21) - Use this knob to control the temperature. Turn the knob anywhere between COLD position (left) and HOT position (right). Refer to Operation and Maintenance Manual, "Heating and Air Conditioning Control" for more information. |
Engine Start Switch (22) - The engine start switch starts the engine.
|
OFF position - When you insert the engine start switch key and when you remove the engine start switch key, the engine start switch must be in the OFF position. To disconnect the power to the electrical circuits in the cab, turn the engine start switch to the OFF position. Also, turn the engine start switch to the OFF position to stop the engine. |
|
ON position - To activate the electrical circuits in the cab, turn the engine start switch key clockwise to the ON position. |
|
START position - To start the engine, turn the engine start switch key clockwise to the START position. When the engine start switch key is released, the engine start switch key will return to the ON position. |
Note: If the engine fails to start, return the engine start switch key to the OFF position. This must be done before you attempt to start the engine again.
| |
| Illustration 4 | g01018629 |
Retarder Control Lever (23) - The retarder control lever is used to regulate engine speed and machine speed when you travel down a grade. Move the retarder control lever downward to apply more retarding force and slow the machine. Move the retarder control lever upward to reduce retarding force and allow the machine speed to increase.
Note: Make sure that switch (15) for the Automatic Retarder Control is in the ON position during normal operation.
 |
|
Aggressive application of retarder capacity in slippery conditions may cause loss of operator control and/or power train damage. Apply the retarder gradually in slippery conditions. Serious injury or death may occur if the retarder is applied too aggressively in slippery conditions. |
| NOTICE |
|---|
|
Do not use the retarder control as a parking brake or to stop the machine. |
Refer to Operation and Maintenance Manual, "Retarding" for additional information.
Accelerator Pedal (24) - The accelerator pedal controls the fuel flow to the engine.
As accelerator pedal (24) is pushed downward, the engine rpm will increase.
Transmission Control Lever (25)
Transmission Control Lever (25) - Use the transmission control lever to select FORWARD, NEUTRALand REVERSE transmission speeds. Refer to Operation and Maintenance Manual, "Direction and Speed Control" for more information.
| |
| Illustration 5 | g01012497 |
|
Typical Shift Pattern (A) Reverse Position (B) Neutral Position (C) First Gear Forward (D) Second Gear Forward (E) Third Gear Forward (F) Fourth Gear Forward (G) Fifth Gear Forward (H) Sixth Gear Forward (I) Seventh Gear Forward | |
|
Parking Brake Control (Switch) (26) - Move the parking brake switch to the OFF position to release the parking brake. Move parking brake switch (19) to the ON position to engage the parking brake. |
Parking Brake Reset Valve (27)
Parking Brake Reset Valve (27) - When the air system is drained, the parking brake reset valve will not allow the parking brake to release until you have reset the valve. Press down the button on the parking brake reset valve to reset the valve.
The parking brake reset valve is a mechanical valve that will automatically close if the supply pressure from the secondary air reservoir drops below
- The air pressure in the secondary air reservoir must be above
414 kPa (60 psi) . - The operator must manually reset the valve by pushing in on the popup indicator.
The valve will not close during truck operation unless the operator is operating the truck after activation of the low air pressure warning buzzer. The operator will be warned to stop operating the truck because of low air pressure if the pressure drops below
If the system air pressure drops below
As an automatic mechanism, the parking brake reset valve ensures that the parking brake does not release without a specific operator action. The parking brake reset valve will not automatically apply the parking brake when the truck is shut down. The operator must still follow the proper parking and shutdown procedures.
| NOTICE |
|---|
|
Do not use the front wheel brakes for retarding on long steep downgrades. Overheating may occur, causing reduced service life of the brake components. |
During normal operation, depress service brake control (pedal) (28) to stop, or slow the machine. The pedal is fully variable. The amount of braking force depends on the position of the pedal. Refer to Operation and Maintenance Manual, "Braking".
Note: If service brake pedal (28) does not stop the machine, use secondary brake control (pedal) (29) to stop the machine.
The secondary brake pedal (29) applies all four wheel brakes. The pedal is fully variable. The amount of braking will depend on the position of the pedal.
- If the action alarm sounds, check the brake air pressure gauge on the dash for system air pressure. If the service brake pedal (28) does not stop the machine, use secondary brake pedal (28) to stop the machine.
Show/hide table
To avoid the possibility of a unexpected machine movement when parking on a slope, always block the wheels securely before leaving the machine unattended.
If the secondary brake system is required in order to stop the machine, do not operate the machine until a complete check has been made of the entire braking system and until all necessary repairs have been made.
- When the machine stops, engage the parking brake. Release secondary brake pedal (29). Allow the machine to build up air pressure . If the air pressure fails to build up, immediately report the problem to the appropriate service personnel.
Refer to Operation and Maintenance Manual, "Braking".
| NOTICE |
|---|
|
The body must be lowered and in the FLOAT position when operating the machine. This will help prevent damage to the body, caused by vibrations from the haul road. |
Hoist Control Lever (30) - Use the hoist control lever to raise or lower the dump body of off-highway trucks. Use the hoist control lever to open and close the doors of pulled units that are towed by tractors.
|
(31) RAISE - Hold the hoist control levercompletely backward to raise the dump body and empty the load. When the hoist control lever is released, the hoist control lever will return to the HOLD position. |
|
(32) HOLD - When the hoist control lever is in the HOLD position, the dump body will not move. The hoist control lever will stay in this position until the hoist control lever is manually moved. |
|
(33) FLOAT - When the hoist control lever is in the FLOAT position, the dump body will seek a level. The hoist control lever will stay in this position until the hoist control lever is manually moved. |
|
(34) LOWER - Hold the hoist control levercompletely forward to lower the dump body. When the hoist control lever is released, the hoist control lever will return to the FLOAT position. |
The transmission will not shift into reverse gear when the hoist control lever is in the RAISE position or in the LOWER position. The machine will only shift into forward gears.
|
Power Window Switch (35) - Push the top half of the switch to close the window on the left side of the cab. Push the bottom half of the switch to open the window. |
Note: Opening any cab window will eliminate the controlled air pressure in the cab.
Steering Column Tilt Control (36)
Steering Column Tilt Control (36) - Use the steering column tilt control to adjust the position of the steering wheel.
Push the steering column tilt lever downward for telescoping. Adjust the location of the steering wheel while you hold the lever. Release the lever. The steering wheel will remain in the desired position.
Pull the lever upward to tilt the steering wheel. Adjust the position of the steering wheel while you hold the lever. Release the lever. The steering wheel will remain in the desired position.