SkyTrak 8042 Service Manual - Manual (Page 199)

9-17 6036, 6042, 8042, 10042, 10054
Electrical System
8. Pull the control panel out from the dash panel, and if
removing variable speed fan control, remove the cab
harness connector.
9. If removing the temperature control knob, disconnect
the cable connector and remove control knob.
10. Remove the locknut from the suspect control shaft.
11. Remove the control panel from the panel.
b. Disassembly
DO NOT disassemble the cab heater and fan controls.
The controls are not serviceable. Replace controls if
found to be defective.
c. Installation and Testing
1. Check that the variable speed fan control is in the
OFF position.
2. If installing the temperature control, attach the
control cable to the back of the control.
3. Insert the control shaft through the panel, ensuring
that the knob is in the VERTICAL position.
4. Install the locknut on the shaft and tighten.
5. Connect the cab harness connector to the variable
speed fan control.
6. Install the screws and backing locknuts securing the
control panel to the dash panel.
7. Install the setscrew securing the knob to the control.
8. Install the right side control panel.
9. Properly connect the battery.
10. Remove the Do Not Operate Tags from both the
ignition key switch and the steering wheel.
11. Turn the ignition key to the ON position and check
the fan speeds. If further repair is needed, refer to
Section 9.5, “Electrical System Schematics.”
12. Start the machine and allow engine to warm to
operating temperature. Check heat control at
different levels.
13. Close and secure the rear door.
9.10 SOLENOIDS, SENSORS AND
SENDERS
9.10.1 Coolant Temperature Switch
a. Coolant Temperature Switch Removal
1. Park the machine on a firm, level surface, level the
machine, fully retract the boom, raise the boom,
place the transmission control lever in
(N) NEUTRAL, engage the park brake and shut the
engine OFF.
2. Place a Do Not Operate Tag on both the ignition key
switch and the steering wheel, stating that the
machine should not be operated.
3. Open the rear door. Allow the system fluids to cool.
4. Temporarily block up or support the boom.
5. Properly disconnect the battery.
6. Label and disconnect the wiring connector from the
Coolant Temperature Switch (8).
7. Unthread the switch from the engine.
b. Coolant Temperature Switch Disassembly
DO NOT disassemble the Coolant Temperature Switch.
Replace a defective switch with a new part.
c. Coolant Temperature Switch Installation
1. Thread the switch into the engine. Tighten securely.
2. Connect the previously labeled wiring connector to
the switch.
3. Properly connect the battery.
4. Remove the Do Not Operate Tags from both the
ignition key switch and the steering wheel.
MAQ0140
8