ALLISON 1000 & 2000 PRODUCT FAMILIES
ROTATING CLUTCH HOUSING E. Turbine Shaft Inspect the internal splines where the C2 reaction plates index.
C. Bushing B. PTO Drive Gear A. Rotating Clutch Housing
F. P1 Sun Gear D. Speed Sensor Tone Wheel
Splines
A. Inspect the rotating clutch
pitting, grooves and scoring. Replace the housing if damage cannot be repaired using a soft stone or crocus cloth.
housing. Replace the housing if it is cracked, dented or has damage which cannot be repaired using a soft stone or crocus cloth. Inspect the internal splines where the C2 reaction plates index for step wear, twisting, chips, burrs and signs of battering. Replace the housing if damage cannot be repaired using a soft stone or crocus cloth. Inspect the surface just below the bushing where the three front support sealrings ride for cracks,
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ALLISON
TRANSMISSION
2005 General Motors Corporation.
Inspect the C1/C2 piston housing snap ring and sealring grooves for burrs, chips and cracks. Replace the housing if damage cannot be repaired using a soft stone or crocus cloth. NOTE: Use the appropriate special
tools during C2 clutch piston snap ring removal and installation to avoid damaging the C1 clutch sealring area. Reference Service Manual SM3191 for procedures.
TECHNICIANS’
GUIDE
B. Inspect the PTO drive gear teeth for chips, cracks and abnormal wear. Replace the rotating clutch housing assembly if damage cannot be repaired using a soft stone or crocus cloth, or if the gear is missing teeth or loose on the housing. C. Inspect the rotating clutch
housing bushing. Replace the bushing if it has any damage which cannot be repaired using a soft stone or crocus cloth. Maximum allowable bushing inside diameter is 78.170mm (3.0776 inches). (continued)
