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| Illustration 1 | g03676072 |
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(1) Steering column tilt and telescope control
(2) Multifunction switch (3) Horn button (6) Panel dimmer (8) Hazard flasher switch (9) Switch for headlights, parking lights, and taillights (10) Switch for the Fog lights (11) Switch for Access Lights (12) Switch for rear/side work lights (13) Curb vision lights (14) Brake release switch (15) Temperature variable control (16) Fan speed switch (17) Air conditioner switch (18) Heated mirrors (19) Radio (20) Engine start switch (21) Retarder control lever (22) Service brake pedal (23) Accelerator pedal (24) Throttle backup switch (25) Shift control lever (26) Hoist control lever (27) Secondary brake pedal (28) Power window switch | |
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| Illustration 2 | g06196115 |
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Ground level controls (30) Battery Disconnect Switch (31) DEF purging lamp (32) VIMS service lamp (33) VIMS Service Port (34) Engine Shutdown Switch (35) Engine Service Lights switch (36) Access Lights switch (37) Machine lock switch (38) Engine lockout switch | |
Note: The ground level controls are mounted below the front bumper if the machine is equipped with the sound suppression arrangement.
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| Illustration 3 | g06210665 |
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(40) Cab Service Port or ET and ECAP Service Port?
(41) Communication service connector (42) VIMS Service Port (43) 12 V Power receptacle | |
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| Illustration 4 | g01428207 |
| (39) Cab Visor | |
Note: Your machine may not be equipped with all the controls that are described in this topic.
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| Illustration 5 | g01191787 |
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Steering System - This machine is equipped with a closed centered, hydraulic steering system. There is no mechanical connection between the steering wheel and steering cylinders that move the front wheels. Under normal conditions, when the engine is running, movement of the steering wheel will turn the front wheels. When the steering wheel is turned clockwise, the front wheels will turn to the right. When the steering wheel is turned counterclockwise, the front wheels will turn to the left. When the steering wheel is released, the front wheels will remain in the selected position. |
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Personal injury or death can occur if steering is lost completely during operation. Do not continue to operate the machine using the secondary steering. If the secondary steering activates during operation, the machine must be safely shut down immediately. Inspect the machine and correct the condition which made the use of the secondary steering necessary. |
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Secondary Steering System - This machine is equipped with a secondary steering system that will operate in either forward or reverse direction of machine travel. If the power source for the normal steering system fails, the VIMS warning system will alert the operator with a category 3 warning. A category 3 warning states that the machine must be safely shut down immediately. The steering system accumulators automatically provide a limited amount of stored hydraulic pressure for secondary steering capability. The stored hydraulic pressure is exhausted by a small amount of steering system oil flow that keeps the oil warm and by steering wheel action by the operator. The stored hydraulic pressure will be exhausted faster as the steering wheel action by the operator is used to a greater magnitude, duration, or frequency. |
Steering Column Tilt and Telescope Control (1)
Tilt Control (1) - Pull the lever upward to tilt the steering column. Adjust the position of the steering wheel while you hold the lever . Release the lever. The steering wheel will remain in the desired position.
Telescope Control (1) - Push the lever downward to telescope the steering column. Adjust the position of the steering wheel while you hold the lever. Release the lever. The steering wheel will remain in the desired position.
Multifunction switch (2) controls the window wipers, the window washer, the brightness of the headlights, and the turn signals.
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Window Wipers - The rotary switch on the lever controls the window wipers. There are six different modes for the window wipers. |
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OFF Position |
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Intermittent Position 3 - The wipers will operate intermittently. This is the smallest interval of time between cycles. |
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Intermittent Position 2 - The wipers will operate intermittently. |
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Intermittent Position 1 - The wipers will operate intermittently. This is the largest interval of time between cycles. |
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Continuous Position 1 - The wipers will operate continuously at a slow speed. |
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Continuous Position 2 - The wipers will operate continuously at a high speed. |
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Window Washer - The button on the end of the lever activates the window washer. |
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Dimmer Switch - The lever toggles up and down to adjust the headlights between high beam and low beam. |
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Turn Signal Left - Pull rearward on the lever to activate the left turn signal. When the left turn signal is activated, an indicator will illuminate on the dash panel. The turn signal will remain on until the lever is manually returned to the Middle position. |
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Turn Signal Right - Push forward on the lever to activate the right turn signal. When the right turn signal is activated, an indicator will illuminate on the dash panel. The turn signal will remain on until the lever is manually returned to the Middle position. |
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Horn (3) - Depress the large button in the center of the steering wheel to sound the horn. |
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Instrument Illumination (6) - Depress the top half of the switch and release the switch to increase the intensity of the panel lights. Depress the bottom half of the switch and release the switch to decrease the intensity of the panel lights. |
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Hazard Flashers (8) - Push the top half of the switch to turn on the hazard flashers. Push the bottom half of the switch to turn off the hazard flashers. |
Switch for Headlights, Parking Lights, and Taillights (9)
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Switch for Headlights, Parking Lights, and Taillights (9) - The switch for the headlights, parking lights, and taillights 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. |
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Switch for Fog Lights (10) - Push the top half of the switch to turn on the fog light. Push the bottom half of the switch to turn off the fog lights. This switch only operates the lower headlights. |
Switch for the Access Lights (11)
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Switch for Access Lights (11) - Use this switch to turn on or turn off the lighting in the area around the stair assembly. |
Note: There are two switches that activate these lights. One switch is located in the cab and the other switch is on the ground level controls near the bottom of the stair assembly. The position of one switch will determine whether the other switch is in the ON position or in the OFF position.
Switch for Rear/side Work Lights (12)
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Switch for Rear/side Work Lights (12) - Push the top half of the switch to turn on the rear work lights. Push the bottom half of the switch to turn off the rear work lights. |
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Curb Vision Lights (13) |
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Brake Release Switch (14) - Lift the latch on the bottom half of the brake release switch to unlock the switch. Push the top half of the switch to operate the electric motor for the parking brake release pump. Push the bottom half of the switch to deactivate the electric motor for the parking brake release pump. |
Note: Only use the brake release switch to release the brakes for towing. Do NOT keep the brake release control in the ON position longer than 20 seconds. For more information, refer to Operation and Maintenance Manual, "Towing With Inoperable Engine".
Heating and Air Conditioning Controls
Temperature Variable Control (15)
Temperature Variable Control (15) - Adjust the control anywhere between MINIMUM position (left) and MAXIMUM position (right). This will control the amount of heating and the amount of cooling.
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Fan Speed Switch (16) - The fan speed switch controls the four-speed blower fan. |
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Off - Move the switch to this position to turn off the blower fan. |
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Low - Move the switch to this position for a low fan speed. |
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Medium - Move the switch to this position for a medium fan speed. |
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High - Move the switch to this position for a high fan speed. |
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Max - Move the switch to this position for the maximum fan speed. |
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Air Conditioner Switch (17) - Push the top of the switch to turn on the air conditioning system. Push the bottom of the switch to turn off the air conditioning system. |
Heating and Air Conditioning System Operation
The heating and air conditioning system can perform four functions:
Position fan switch (16) to desired speed. Adjust temperature variable control (15) for the desired temperature.
Place air conditioner switch (17) in the ON position. Position fan switch (16) to desired speed. Adjust temperature variable control (15) for the desired temperature.
When heating or cooling is not desired, pressurize the cab to prevent dust from entering.
Adjust temperature variable control (15) to a comfortable temperature. Position fan switch (16) to a speed that is needed to keep out the dust.
Note: Opening any cab window will eliminate the controlled air pressure in the cab.
Place air conditioner switch (17) in the ON position. Position fan switch (16) to a speed that is needed to remove moisture from the air in the cab. This prevents moisture from forming on the windows. Adjust temperature variable control (15) until the moisture level is lowered.
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Heated Mirror Switch (18) - Push in the top of the switch to apply heat to the exterior mirrors. The heated mirrors will be operational when the engine start switch is in the ON position. Push in the bottom of the switch to turn off the heated mirrors. |
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Radio (19) |
Engine Start Switch (20) - The engine start switch starts the engine.
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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. |
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ON position - To activate the electrical circuits in the cab, turn the engine start switch key clockwise to the ON position. |
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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.
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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. |
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Do not use the retarder control as a parking brake. Do not use the retarder control to stop the machine. |
Retarder Control Lever (21) - The retarder control lever is used to regulate engine speed and machine speed when you travel down a grade. Move the retarder control lever rearward to apply more retarding force and slow the machine. Move the retarder control lever forward to reduce retarding force and allow the machine speed to increase.
Refer to Operation and Maintenance Manual, "Retarding" for additional information.
Service Brake Control Pedal (22)
Service Brake Control Pedal (22) - During normal operation, depress the service brake control pedal to stop the machine. Also, depress the service brake control pedal to slow the machine.
Refer to Operation and Maintenance Manual, "Braking" for additional information.
Note: Do not use the service brake for the purpose of maintaining the machine speed on a long downgrade. Use the automatic retarder control and/or the manual retarder control to maintain the machine speed on a long downgrade. On a long downgrade, the retarder controls provide the operator with the ability to better regulate the amount of retarding force. Refer to Operation and Maintenance Manual, "Retarding" for more information on the retarder controls.
Accelerator Pedal (23) - The accelerator pedal controls the fuel flow to the engine. As the accelerator pedal is depressed, the engine rpm will increase.
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Throttle Backup Switch (24) - If the throttle position sensor on the accelerator does not function, use the switch 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 the switch in the depressed position. While the switch is held in the depressed position, the engine RPM will raise from 650 RPM to 1300 RPM. When the switch is released, the engine RPM will return to 650 RPM. |
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| Illustration 6 | g03676312 |
| (25) Shift Control Lever | |
Shift Control Lever (25) - Use the shift control lever to select Forward speeds, Neutral position, Parking Brake Applied position, and Reverse direction. Depress button (25C) to unlock the shift control lever and move the shift control lever. Refer to Operation and Maintenance Manual, "Changing Direction and Speed" for more information.
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Parking Brake Applied Position - When the shift control lever is in the P position, the parking brakes are automatically engaged and there is no electrical power to the traction motors. |
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Personal injury or death can result from high voltage. When the machine is parked, high voltage may still be present. |
Buttons (25A) and (25B) are used to test the parking brake. Refer to Operation and Maintenance Manual, "Braking System - Test" for the proper procedure.
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Reverse Position - When the shift control lever is in the R position, the machine will move in reverse. |
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Neutral Position - When the shift control lever is in the N position, the wheels are able to roll freely. |
Note: When the shift control lever is in the N position, the parking brake is not engaged.
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Drive Position - When the shift control lever is in the D position, the machine will propel forward at all speeds. |
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Low Position - When the shift control lever is in the L position, the machine will not propel forward above the speed of |
| NOTICE |
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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. |
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LOWER Position - Hold the hoist control lever completely forward to lower the dump body. When the lever is released, the lever will return to the FLOAT position . |
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FLOAT Position - When the hoist control lever is in the FLOAT position, the dump body will seek a level. The hoist control will stay in this position until the lever is manually moved. |
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HOLD Position - When the hoist control is in the HOLD position, the dump body will not move. The hoist control will stay in this position until the lever is manually moved. |
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RAISE Position - Hold the hoist control lever completely backward to raise the dump body and empty the load. When the lever is released, the lever will return to the HOLD position . |
Control Pedal for the Secondary Brake System (27)
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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. |
Control Pedal for the Secondary Brake System (28) - Use secondary brake control (28) to stop the machine if service brake control (21) does not stop the machine properly.
Refer to Operation and Maintenance Manual, "Braking" for additional information.
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Power Window Switch (29) - Push the top half of the switch to close the window on the left side or right side of the cab. Push the bottom half of the switch to open the window. |
Battery Disconnect Switch (30)
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Battery Disconnect Switch (30) - See Operation and Maintenance Manual, "Battery Disconnect Switch". |
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Do not turn off the battery disconnect switch until the indicator lamp has turned off. If the switch is turned off when the indicator lamp is illuminated the Diesel Exhaust Fluid (DEF) system will not purge the DEF. If the DEF does not purge, DEF could freeze and damage the pump and lines. |
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Never move the battery disconnect switch to the OFF position while the engine is operating. Serious damage to the electrical system could result. |
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| Illustration 7 | g03422337 |
Wait to Disconnect Lamp - Do not turn off the battery power disconnect switch until the light has been turned off. The light will remain illuminated for approximately 2 minutes. If the switch is turned off when the light is illuminated, then the DEF system will not purge and DEF could freeze and damage the pump and lines.
VIMS service lamp (32) - The service lamp will illuminate when the system is in the ON position.
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VIMS Service Port (33) - This service port allows service personnel to connect a laptop computer with the software for the Vital Information Management System (VIMS). |
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Engine Shutdown Switch (34) - See Operation and Maintenance Manual, "Engine Shutdown Switch". |
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Engine Service Lights (35) - Move this switch to the ON position to light the engine area. |
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Switch for Access Lights (36) - Use this switch to turn on or turn off the lighting in the area around the stair assembly. |
Note: There are two switches that activate these lights. One switch is located in the cab and the other switch is on the ground level controls near the bottom of the stair assembly. The position of one switch will determine whether the other switch is in the ON position or in the OFF position.
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Machine Lockout Control (37) - See Operation and Maintenance Manual, "Machine Lockout Control". |
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Engine Lockout Control (40) - See Operation and Maintenance Manual, "Engine Lockout Control". |
Cab Visor (39) - Grasp the handle and pull downward to lower the cab visor for the front window. Grasp the handle and press upward to raise the cab visor for the front window.
Master Control Switch or ET and ECAP Service Port (40)
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ET and ECAP Service Port (40) - This service port allows service personnel to connect a laptop computer that is equipped with the Electronic Technician (ET) or with the Electronic Control Analyzer Programmer (ECAP). This will allow service personnel to diagnose machine systems and the engine. |
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VIMS Service Port (42) - This service port allows service personnel to connect a laptop computer with the software for the Vital Information Management System (VIMS). |
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"+12 V" Power Receptacle (43) - This port provides 12 V power. The maximum power output is 5 Amp. |