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Page Title:
Table 2. TRANSFER GEARCASES A, B, AND C WEAR LIMITS |
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 TM 9-2520-238-34
REPAIR TRANSFER GEARCASES A, B, AND C -- Continued
0017 00
3.
Check the parts dimensions with chart below to determine replacement.
Table 2. TRANSFER GEARCASES A, B, AND C WEAR LIMITS
Reference
Size and Fit of New
Wear
Point of Measurement
Letter
Parts
Limits
A
Outside diameter of shift collar bearing
2.4404 to 2.4409
(*)(***)
B
Inside diameter of shift collar bearing
1.3774 to 1.3780
(*)(***)
(***)
C
Inside diameter of shift collar at bearing surface
2.4408 to 2.4413
2.4418
C-A
Fit of shift collar bearing in shift collar
0.0009L to 0.0001T
0.0014L
D
Outside diameter of shaft at shift collar
1.3781 to 1.3785
(*)(***)
D-B
Fit of shift collar bearing on input shaft
0.0001T to 0.0010T
(*)
E
Outside diameter of input shaft at oil seal surface
1.4850 to 1.4870
1.4830
F
Bore diameter of housing at bearing surface (input)
3.3414 to 3.3434
(*)(***)
G
Bore diameter of housing at bearing surface (first intermediate)
3.5375 to 3.5395
(*)(***)
H
Outside diameter of input gear hub at bearing surface
2.0010 to 2.0015
(*)(***)
I
Inside diameter of input bearing cone
2.0000 to 2.0015
(*)(***)
I-H
Fit of input bearing to input gear
0.0005T to 0.0015T
(*) 10
J
Inside diameter of first intermediate bearing cone
1.9680 to 1.9685
(*)(***)
K
Inside diameter of second intermediate bearing cone
1.9680 to 1.9685
(*)(***)
L
Inside diameter of output bearing cone
2.0000 to 2.0005
(*)(***)
M
Outside diameter of output gear hub at oil seal surface
1.8730 to 1.8770
(*)(***)
N
Outside diameter of output gear hub at bearing surface
2.0010 to 2.0015
(*)(***)
N-L
Fit of output bearing on output gear hub
0.0005T to 0.0015T
(*)
O
Bore diameter of housing at bearing surface (second intermediate)
3.5375 to 3.5395
(*)(***)
P
Inside diameter of bore in secondary pump-drive gear
0.7487 to 0.7495
(*)(***)
Q
Inside diameter of bore in primary pump-drive gear
2.0620 to 2.0630
(*)(***)
R
Outside diameter of second intermediate gear hub (gear pilot)
2.0625 to 2.0635
(*)(***)
R-Q
Fit of primary pump-drive gear on hub of second intermediate gear
0.0005L to 0.0015T
(*)
S
Outside diameter of first intermediate gear hub at bearing surface
1.9690 to 1.9695
(*)(***)
S-J
Fit of first intermediate bearing on first intermediate gear hub
0.0005T to 0.0015T
(*)
Outside diameter of second intermediate gear hub at fan pulley
T
1.0000 to 1.0010
(*)(***)
surface
U
Outside diameter of second intermediate gear hub at oil seal surface
1.5000 to 1.5010
1.4980
V
Outside diameter of second intermediate gear hub at bearing surface
1.9690 to 1.9695
(*)(***)
V-K
Fit of second intermediate bearing on gear
0.0005T to 0.0015T
(*)
0017 00-27
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