JLG T500J Service And Maintenance Manual page 119

9. Remove manifold (7) and inspect for cracks surface scor-
ing, brinelling or spalling. Replace manifold if any of
these conditions exist. A polished pattern on the ground
surface from commutator or rotor rotation is normal.
Remove and discard the seal rings (4) that are on both
sides of the manifold.
NOTE: The manifold is constructed of plates bonded together to
form an integral component not subject to further disas-
sembly for service. Compare configuration of both sides of
them an if old to ensure that same surface is reassembled
against the rotor set.
10. Remove rotor set (8) and wear plate (9), together to
retain the rotor set in its assembled form, maintaining
the same rotor vane to stator contact surfaces. The drive
link (10) may come away from the coupling shaft (12)
with the rotor set, and wear plate.You may have to shift
the rotor set on the wear plate to work the drive link out
of the rotor and wear plate. Inspect the rotor set in its
assembled form for nicks, scoring, or spalling on any sur-
face and for broken or worn splines. If the rotor set com-
ponent requires replacement, the complete rotor set
must be replaced as it is a matched set. Inspect the wear
plate for cracks, brinelling, or scoring. Discard seal ring
(4) that is between the rotor set and wear plate.


3121200
SECTION 3 - CHASSIS & TURNTABLE
NOTE: The rotor set (8) components may become disassembled
during service procedures. Marking the surface of the rotor
and stator that is facing UP, with etching ink or grease pen-
cil before removal from Torqlink™ will ensure correct reas-
sembly of rotor into stator and rotor set into Torqlink™.
Marking all rotor components and mating spline compo-
nents for exact repositioning at assembly will ensure maxi-
mum wear life and performance of rotor set and Torqlink™.
NOTE: Series TG Torqlinks™ may have a rotor set with two stator
halves with a seal ring (4) between them and two sets of
seven vanes. Discard seal ring only if stator halves become
disassembled during the service procedures.
NOTE: A polished pattern on the wear plate from rotor rotation is
normal.
11. Place rotor set (8) and wear plate (9) on a flat surface and
center rotor in stator such that two rotor lobes (180
degrees apart) and a roller vane centerline are on the
same stator centerline. Check the rotor lobe to roller
vane clearance with a feeler gauge at this common cen-
terline. If there is more than 0.005 inches (0.13 mm) of
clearance, replace rotor set
NOTE: If rotor set (8) has two stator halves and two sets of seven
vanes as shown in the alternate construction TG rotor set
assembly view, check the rotor lobe to roller vane clearance
at both ends of rotor.
.
3-83