JLG X23J - X700AJ Service Manual - Manual (Page 278)

SECTION 3 - CHASSIS & TURNTABLE
3121448 – JLG Lift – 3-251
ARMATURE
Mica depth:
When the mica is fillers or its depth is smaller than the ser-
vice limit value, recut the grooves using: a hacksaw blade
or t small file.
Service limit
0.2 mm (0,01 in)
Continuity check-commutator segments:
Check for continuity between segments. If an open circuit
(no continuity) exists between any two segments, replace
the armature.
Continuity check-commutator to core:
Check for continuity between the commutator segments
and the a rapture coil core. Replace the armature if conti-
nuity exists.
Continuity check-commutator to shaft:
Check for continuity between the commutator and the
armature shaft.
Replace the armature if continuity exists between any of
the commutator segments end the armature shaft.