JLG 680S, Service And Maintenance Manual

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SECTION 3 - CHASSIS & TURNTABLE
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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 oft
hem 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 (8C) to stator (8B) 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 (8A) and wear plate. Inspect
the rotor set in its assembled form for nicks, scoring, or
spalling on any surface and for broken or worn splines. If
the rotor set component requires replacement, the com-
plete rotor set must be replaced as it is a matched set.
Inspect the warplane for cracks, brinelling, or scoring.
Discard seal ring (4) that is between the rotor set and
wear plate.
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 Torqmotor™ will ensure correct
reassembly of rotor into stator and rotor set into Torqmo-
tor™.Marking all rotor components and mating spline
components for exact repositioning at assembly will
ensure maximum wear life and performance of rotor set
and Torqmotor™.