SkyTrak 8042 Service Manual - Manual (Page 814)

9.223 Model 8042, 10042, 10054 Legacy Rev. 10/03
Electrical System
2. Disconnect the wiring connector at the fuel shut-off
solenoid lead (7), then remove the fuel shut-off
solenoid (5) from the fuel injector pump.
3. Remove the two bolts securing the solenoid to the
mounting plate. Remove the nut holding the linkage
to the arm on the fuel injection pump. Save the
hardware for later reuse.
b. Fuel Shut-off Solenoid Disassembly
DO NOT disassemble a fuel shut-off solenoid. Replace a
defective fuel shut-off solenoid with a new part.
c. Fuel Shut-off Solenoid Inspection and
Replacement
Use a 12-volt DC source and ground to test the solenoid.
Energize the solenoid, and watch for the plunger to
retract. If the plunger does not retract, replace the fuel
shut-off solenoid with a new part.
d. Fuel Shut-off Solenoid Installation
1. Clean the exterior of the fuel injector pump.
2. Using the hardware removed earlier, install the nut
holding the linkage to the arm on the fuel injection pump.
Install the two bolts to secure the solenoid to the
mounting plate.
3. Connect the wiring connector at the fuel shut-off
solenoid lead (7).
4. If the vehicle has one battery, connect the
negative (-) battery cable to the negative (-) battery
terminal (8).
If the vehicle has dual batteries, connect both
negative battery cables to both negative (-) battery
terminals (9).
5. Clear personnel and any obstructions from the area
around the vehicle.
6. Start the engine. If the engine starts, the fuel shut-off
solenoid is functioning. If the engine fails to start, the
fuel shut-off run solenoid may have a poor ground
connection. Visually check the wiring at the fuel
shut-off solenoid leads and/or check for continuity
with a voltmeter as required.
7. Check for fuel and/or oil leakage around the solenoid.
9.14.3 Hydraulic Oil Temperature Switch
The hydraulic oil temperature switch (10) is threaded into
a fitting (11) at the lower inside wall of the hydraulic oil
tank.
The hydraulic tank oil temperature switch connector (12)
attaches to the wiring harness and operator’s instrument
cluster. When the hydraulic oil temperature is above
195° F (91° C), the hydraulic oil temperature warning
indicator on the operator’s instrument cluster illuminates.
The vehicle should be stopped and the engine allowed to
run at high idle for five minutes.
If the warning indicator continues to illuminate after five
minutes, the engine must be shut down to help avoid
damage to the hydraulic system.
MH4890
8
9
MA7670
10
11
12