Allison Transmission AT 1545P Service Manual

8–2 Copyright © 1996 General Motors Corp.
AT 500, AT 1500 SERIES AUTOMATIC TRANSMISSIONS
Foldout 8 FORWARD CLUTCH AND TURBINE SHAFT (cont’d)
27, 28 External-tanged clutch plate
Min thickness No visible wear or
scoring permitted.
Max cone 0.004 0.10
29 Internal-splined clutch plate — min thickness 0.071 1.80
Min depth of oil grooves 0.008 0.21
30 Fourth clutch drive hub
Min thickness at friction face No visible wear or
scoring permitted.
Foldout 9,A FOURTH CLUTCH
2 Clutch backplate — min thickness No visible wear or
scoring permitted.
3 Internal-splined clutch plate — min thickness 0.071 1.80
Min depth of oil grooves 0.008 0.21
4 External-tanged clutch plate
Min thickness No visible wear or
scoring permitted.
Max cone 0.004 0.10
Foldout 9,B SECOND CLUTCH, THIRD CLUTCH, CENTER SUPPORT
2 Third clutch backplate — min thickness No visible wear or
scoring permitted.
3, 24 Internal-splined clutch plate — min thickness 0.090 2.29
Min depth of oil grooves 0.008 0.21
4, 23 External-tanged clutch plate
Min thickness No visible wear or
scoring permitted.
Max cone 0.010 0.25
14 Center support bushing
Max clearance on shaft 3 (Foldout 10,A) 0.005 0.12
25 Second-clutch backplate — min thickness No visible wear or
scoring permitted.
Foldout 10,A PLANETARY GEAR UNIT
2 Sun gear shaft bushing — max clearance on shaft 4 0.0045 0.114
3 Sun gear shaft
Max clearance in bushing 14 (Foldout 9,B) 0.005 0.12
Table 8–1. Wear Limits (Cont’d)
Wear Limit
Illustration Description inch (mm)

Allison Transmission AT 1545P Specifications

General

Brand	Allison Transmission
Model	AT 1545P
Category	Microphone system
Language	English