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Turbine Shaft

ALLISON 1000 & 2000 PRODUCT FAMILIES TURBINE SHAFT

Turbine Shaft

E. Splines A. Bushing Journal B. Bearing Journal

D. Oil Passage (Lube)

D. Oil Passage (Converter In)

C. Sealring Grooves

G. Bushing

A. Inspect the bushing journal surface for nicks, burrs, grooves, scoring, pitting and signs of discoloration. Replace the shaft if damage cannot be repaired using a soft stone or crocus cloth. B. Inspect the bearing journal surface for nicks, burrs, grooves, scoring, pitting and signs of discoloration. Replace the shaft if damage cannot be repaired using a soft stone or crocus cloth. C. Inspect the sealring grooves for burrs, chips and cracks. Replace the turbine shaft if damage cannot be repaired using a soft stone or crocus cloth. D. Oil passages must be clean and unobstructed. Inspect the edges of each orifice for cracks, chips, burrs and metal fatigue. Replace the shaft if damage cannot be repaired using a soft stone or crocus cloth.

(continued)

E. Splines

F. Snap Ring Grooves

ALLISON 1000 & 2000 PRODUCT FAMILIES (continued) TURBINE SHAFT

Supersession Information

Turbine Shaft Updates - Reference SIL 23-1K2K-04

E. Inspect the splines for step wear, twisting, chips, burrs and signs of battering. Replace the turbine shaft if damage cannot be repaired using a soft stone or crocus cloth. F. Inspect the snap ring grooves for burrs, chips and cracks. Replace the turbine shaft if damage cannot be repaired using a soft stone or crocus cloth. G. Inspect the 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 20.117mm (0.7920 inch).

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