TM-9-2520-246-34
TRANSMISSION MODEL 3052, NSN 2520-00-347-4520
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT; MAINTENANCE MANUAL
MAY 1978
TM-9-2520-246-34 - Page 75 of 153
TM 9-2520-246-34
Table 4-1. Repair and Replacement Standard Points of Measurement for Transfer Gear Train (Continued)
Fig.
Ref
Point of Measurement
Size and Fit
No.
Letter
Wear Limits
of New Parts
4-22
T
Countershaft outside diameter
2.3765-2.3775
2.3755
4-22
S-T
Fit of gear on shaft
0.0005T-0.0025T
0.0010L
4-22
U
Countershaft keyway width
0.4990-0.5010
0.5028
4-22
V
Key width
0.5000-0.5010
(*)
4-22
U-V
Fit of key in keyway
0.0010L-0.0020T
.0030L
4-22
W
Gear keyway width
0.5000-0.5025
0.5052
4-22
X
Shifter shaft outside diameter
0.8715-0.8725
0.8685
4-22
Y
Shifter fork pad width
0.562-0.572
0.5550
4-22
Z
Shifter fork perpendicularity of
pad to bore
0.005
0.030
4-22
AA
Spring (free height)
2.64-2.85
2.55 min
4-22
BB
Bearing inside diameter
1.7712-1.7717
(*)
4-22
CC
Bearing outside diameter
3.3459-3.3465
(*)
4-22
DD
Clutch inside diameter
2.515-2.517
(*)
4-22
EE
Sliding clutch groove width
0.630-0.635
(*)
4-22
FF
Clutch jaw taper
0.006-0.013
0.0020
4-22
Y-EE
Fit of fork in groove
0.058-0.073L
0.088L
4-22
GG
Bearing inside diameter
2.6250-2.6260
(*)
4-22
HH
Bearing outside diameter
4.4375-4.4385
(*)
4-22
JJ
Front axle output shaft outside
diameter (front)
1.7716-1.7721
1.7716
4-22
BB-JJ
Fit of bearing on front axle
output shaft (front)
0.0001T-0.0009T
(*)
4-22
KK
Front axle output shaft outside
diameter (rear)
1.245-1.246
1.2435
4-22
LL
Rear output shaft bushing bore
1.248-1.250
1.256
4-22
LL-KK
Fit of shaft in bore
0.002L-0.004L
0.0055L
4-22
MM
Rear output shaft outside
diameter (front)
2.6265-2.6270
2.6260
4-22
GG-MM
Fit of bearing on rear output
shaft (front)
0.0005T-0.0025T
0.0010L
4-22
NN
Rear output shaft outside
diameter (rear)
2.3765-2.3775
2.3755
4-22
Rear output shaft keyway width
0.4985-0.5005
0.5028
4-22
QQ
Gear keyway width
0.5000-0.5025
0.5052
4-22
Key width
0.5000-0.500
(*)
4-22
PP-RR
Fit of key in keyway
0.0005L-0.0027T
0.0028L
4-22
SS
Rear output shaft outside
diameter (rear)
1.7510-1.7515
1.7505
4-22
TT
Driven gear bore
2.375-2.376
2.3765
4-22
NN-TT
Fit of gear on shaft
0.0005T-0.0025T
0.0010L
4-22
UU
Bearing inside diameter
1.7500-1.7505
(*)
4-22
VV
Bearing outside diameter
3.8750-3.8760
(*)
4-22
SS-UU
Fit of bearing on shaft
0.0015T-0.0005T
0.000T
PP
R R
4-14
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