JLG X23J - X700AJ Service Manual - Manual (Page 197)

SECTION 3 - CHASSIS & TURNTABLE
3-170 – JLG Lift – 3121448
STARTING SYSTEM TROUBLESHOOTING
STARTER MOTOR DOES NOT OPERATE
Replace the blade fuse. Replace the combination switch.
Replace with a known-good battery.
If the battery runs down again, perform the
CHARGING SYSTEM
TROUBLESHOOTING.
Replace battery positive (+) cable.
Replace the starter solenoid .
Perform the starter motor performance test.
If necessary disassemble the
starter motor and check the
each parts.
Check the battery condition.
Check the battery voltage between the
starter motor side positive (+) battery cable
terminal and engine ground.
Check the continuity between BAT terminal
(White) and ST terminal (Black/white) of the
combination switch in the START position
.
Check the blade fuse in the control box
.
Check the starter solenoid.
Abnormal
Normal
Blown Not blown
Low voltage
No continuity
Continuity
Normal
Abnormal
Normal