Skytrak 8042 - Engine Start Circuit; Testing the Starter on the Engine; Starter Circuit Checks; Starter Removal

Electrical System
9-20
31211015 6036, 6042, 8042, 10042, 10054
9.7 ENGINE START CIRCUIT
9.7.1 Starter
The starter (1) is located on the left side of the engine.
a. Testing the Starter on the Engine
If the starter does not engage when the ignition key switch is
turned, check the following:
1. The main fuse may be blown, requiring replacement.
Check for the cause of the blown fuse.
2. There may be a defect in the ignition key switch,
ignition wiring or starter solenoid.
3. Check battery condition. Clean the battery posts and
the connectors at each end of the battery cables.
4. Check for broken wiring and damaged insulation on the
wiring. Replace all broken or damaged wiring.
5. Check all connections at the starter solenoid, key switch
and wiring harness plugs. Clean and tighten all
connections.
6. If the starter still does not operate after these checks
have been performed, check the starting circuit.
b. Starter Circuit Checks
1. Check wires and connections for looseness, corrosion,
damage, etc.
2. If a “whirring” noise is heard but engine does not turn
over, starter is spinning but not engaging flywheel.
Starter drive or solenoid that pushes drive forward to
engage flywheel may be defective. Missing or damaged
teeth on flywheel can also prevent starter from cranking
engine.
3. If starter only “clicks” it may indicate that battery is
discharged, or that there is a loose or corroded battery
cable connection. Check battery state of charge and
battery condition first, then check cables and cable
connections.
4. For additional information on the starting circuit, refer
to Section 9.5, “Electrical System Schematics”.
c. Starter Removal
Remove the starter only if it fails. To remove the starter:
1. Place a Do Not Operate Tag on both the ignition key
switch and the steering wheel, stating that the machine
should not be operated.
2. Open the rear and side engine doors. Allow the system
fluids to cool.
3. Properly disconnect the battery. Refer Section 9.8,
“Battery”, for procedure.
4. Remove wires from solenoid stud. Remove positive (+)
battery cable from starter. Label and disconnect wire
from starter solenoid housing stud. Record how wires
are installed to ensure correct installation later.
5. Loosen, but DO NOT remove, fasteners securing starter
to flywheel housing. Support starter securely, as it is
relatively heavy and will fall if not supported.
6. Support starter and remove fasteners securing starter to
engine. Remove negative (-) ground cable from its
starter mounting bolt.
7. Remove the starter from the machine.
MAQ1670
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IF EQUIPPED FOR ULS
IF EQUIPPED FOR LS