TB 1-1520-238-30-19
8.3 Threaded inserts: Inspect seal plate assembly (23) threaded inserts for security and condition of threads
(stripped, galled, and cross-threaded). If any of these conditions exist, reject clutch assembly, and reassem-
ble as needed to return clutch to supply for disposition.
8.4 Press-fit surfaces: Visually inspect press-fit diameters of the splined output adapter (19) shaft, annular
ball bearing (25) bore, and seal plate (23) anti-rotation pins for security, dents and gouges. If any of these
conditions exist, reject clutch assembly, and reassemble as needed to return clutch to supply for disposition.
NOTE
Seal surfaces on the output spline adapter (19) and rotating flange (17) will
have a 'seal track' due to operational contact from the plain encased seals
(18) and (22). This is a normal operating condition - do not reject clutch for
this condition.
8.5 Sealing surfaces and flanges: Visually inspect splined output adapter (19) and output flange (17) sealing
surfaces for dents and gouges. If any of these conditions exist, reject clutch assembly, and reassemble as
needed to return clutch to supply for disposition.
8.6 Spline inspection: Visually inspect splines using a strong light.
8.6.1 Splined output adapter (19) dimensional inspection: Inspect friction disk engagement splines for
excessive wear. Spline wear must not exceed 0.100 inch in depth. If this condition exists, reject clutch
assembly, and reassemble as needed to return clutch to supply for disposition.
8.6.2 Visually inspect spline for evidence of fretting, surface flaking, chipping, splitting, rubbing, cracks,
chafing or corrosion. If any of these conditions exist, reject clutch assembly, and reassemble as needed to
return clutch to supply for disposition.
8.6.3 Visually inspect spline for evidence of overheating discoloration. If overheating discoloration of metal
is evident reject clutch assembly, and reassemble as needed to return clutch to supply for disposition.
8.6.4 Visually inspect spline for evidence of abnormal or deep wear patterns. If a visual inspection reveals
abnormal or deep wear pattern, reject clutch.
8.7 Remove cover from input housing (12), Remove plastic cap (P/N VC-437-16) and inspect bearing
journal (27) of output shaft for damage. None allowed.
NOTE
Minor flaking at the friction disk outer edges is acceptable - do not reject
clutch. If bearing journal is found to be acceptable replace plastic cap and
cover input housing until reassembly. If found to be unacceptable, reject
clutch assembly, and reassemble as needed to return clutch to supply for
disposition.
8.8 Passageways: Flush weep hole in output housing (26) with alcohol. Visually inspect weep hole for
obstructions. Remove obstructions as required.
8.9 Flanges: Inspect rotating flange (17) for cracks, fretting, scoring and heat damage - none allowed.
Inspect for deformation at bolt holes and outer edges of flange - none allowed. If any of these conditions exist,
reject clutch assembly, and reassemble as needed to return clutch to supply for disposition.
8.10 Roller bearing (20) cavity inspection. If any of the below conditions exists, reject clutch assembly,
reassemble and return to supply for disposition.
8.10.1 Inspect roller bearing cavity for burnt, dry, or powdered grease.
8.10.2 Damaged seal packing.
8.10.3 Fractures on roller bearing, rollers, separator or outer race.
8.10.4 Visible wear or deformation on the rollers.
8.10.5 Roller bearing raceway surface on the input shaft is worn or corroded.
8.11 Bearing bore and splined output adapter (19) shaft diameter: Visually inspect annular ball bearing (25)
bore and splined output adapter (19) shaft for excessive corrosion or excessive wear and scoring. If any of
these conditions exist, reject clutch assembly, reassemble and return to supply for disposition.
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