JLG Skytrak 6036 Service Manual page 261

Trouble
Engine will not
crank and starting
motor relay or
solenoid does not
engage.
Starter relay
closes and
solenoid engages
but engine will not
crank.
Starting motor
turns but does not
crank engine.
Engine cranks
slowly.
Engine turns over
but fails to start.
Model 6036 S/N 9B0499 and Before
Probable Cause
Starting System—GENERAL
1. Battery is discharged.
2. Ignition switch, relay or
solenoid inoperative.
3. Starting circuit is open or
has high resistance.
1. Battery is discharged.
2. Defective starting motor
connections or loose
battery connections.
3. Starting motor faulty.
4. Relay or solenoid contacts
are burned.
5. Engine is seized;
crankshaft cannot rotate.
1. Defective starting motor
drive assembly.
2. Defective solenoid or
pinion engagement levers.
3. Defective flywheel ring
gear.
1. Discharged battery.
2. Excessive resistance in
starting circuit.
3. Defective starting motor.
4. Excessively tight engine.
1. Fuel tank is empty.
2. Engine is malfunctioning.
Remedy
Check battery and charge or
replace battery.
Check circuitry and repair or
renew faulty components.
Check circuit connections and
repair or renew faulty wiring.
Check battery and charge or
renew.
Check, clean and tighten
connections.
Inspect, repair or renew.
Renew relay or solenoid.
Repair or replace engine and
transmission as required.
Inspect and repair or renew.
Inspect and repair or renew.
Inspect and renew.
Check battery and charge or
renew.
Check circuit connections and
repair or renew faulty wiring.
Inspect and repair or renew.
Investigate cause and repair
or replace engine.
Fill fuel tank.
Contact authorized engine
dealer.
Section 10. Electrical System
Reference
See para. 10.6.2
See para. 10.7.1
See para. 10.5.1
and 10.5.2
See para. 10.6.2
See para. 10.5.1
and 10.6.2
See para. 10.5.3
See para. 10.5.3
and 10.5.4
Section 8
See para. 10.5.3
See para. 10.5.3
See para. 10.5.3
See para. 10.6.2
See para. 10.5.2
See para. 10.5.3
Section 8
See para. 8.4.2
See para. 8.7
10-67