JLG 40H Service Manual - Manual (Page 119)

SECTION 3 - TROUBLESHOOTING
3120240 – JLG Lift –
3-7
Table 3-3. Turntable Assembly Troubleshooting.
TROUBLE PROBABLE CAUSE REMEDY
POWER PLANT.
Engine will not start. Station power selector switch not in required posi-
tion.
Circuit breaker open.
Defective starter motor.
Damaged wiring in ignition circuit (broken wire on
starter).
Ignition switch not functioning properly.
Ignition relay not functioning properly.
Ignition circuit shorted to ground.
Battery cable(s) not making contact.
Actuate switch as required.
Determine and correct cause; reset circuit breaker.
Replace starter motor.
Repair, replace wiring.
Replace switch.
Replace relay.
See proper wiring diagram.
Clean and tighten cable(s).
Engine will not start. (Ignition O.K.) No fuel.
Clogged fuel filter.
Restricted or broken fuel line.
Automatic choke out of adjustment.
Battery discharged.
Fuel pump not working.
Replenish fuel as necessary.
Replace fuel filter.
Clean or replace fuel line.
Adjust choke.
Charge battery, replace if defective.
Replace fuel pump.