SkyTrak 3606 Service Manual - Manual (Page 404)

Section 10
10-86 Model 3606 • Origin 10/99
14. Engine turns over but does
not start.
Note: Refer to the Perkins or
Cummins engine trouble-
shooting information in
Section 8A or Section 8B.
1. Fuel tank is empty.
2. Faulty injection pump or fuel run
solenoid.
1. Fill fuel tank.
2. Test for fuel at injection pump.
Test the electrical circuit and the
solenoid. Check that 12 volts are
present at the fuel run solenoid.
Check wiring for defects and
repair as required.
15. Starter doesn't operate or
doesn't operate correctly.
1. Discharged battery.
2. Bad connections, wires, cables or
other components in the start
circuit.
3. Wrong engine oil (viscosity too
thick) for cold weather operation.
4. Worn teeth on the starter drive
pinion or the flywheel ring gear.
5. Starter fasteners are loose.
1. See corrections for problem of
discharged battery.
2. See troubleshooting the starting
system/GENERAL.
3. Refer to appropriate engine
section and see lubrication
instructions in Section 2 General
Information, Specifications and
Maintenance of this manual.
4. Remove the starter to check the
teeth. Repair or replace as
necessary.
5. Tighten the fasteners.
16. STARTER MOTOR RELAY
No voltage at the starter
solenoid when the ignition
key switch is in the START
position.
1. Starter relay is not energized due
to broken wiring or a blown fuse.
1. Replace wiring or fuse.
17. Starter operates continu-
ously without ignition key
switch in the START posi-
tion.
1. Starter relay is stuck in the closed
position.
1. Replace the starter relay.
18. THERMO-START
Intake manifold remains
cold after ignition key
switch is momentarily
turned to the PREHEAT
position.
1. Discharged battery.
2. Broken wiring or blown fuse.
3. Loose connections.
4. Clogged or bent fuel line to the
thermo-start plug.
5. Defective thermo-start plug.
6. Defective ignition switch.
1. Charge battery only if electrolyte
is not frozen. If electrolyte is
frozen, remove the battery from
the vehicle, completely thaw it
and then attempt to charge the
battery.
2. Replace switch, wiring or fuse.
3. Tighten connections.
4. Clean or replace the fuel line.
5. Replace the thermo-start plug.
6. Remove and test the ignition key
switch in all positions. Replace a
faulty switch.
Electrical System Troubleshooting
Problem Possible Cause Remedy