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Page Title:
Table 1. COOLING FAN RIGHT ANGLE DRIVE C WEAR LIMITS |
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 TM 9-2520-238-34
REPAIR COOLING FAN RIGHT ANGLE DRIVE C (M113A3 FOV ONLY) -- Continued
0016 00
Table 1. COOLING FAN RIGHT ANGLE DRIVE C WEAR LIMITS
Reference
Wear
Point of Measurement
Size and Fit of New Parts
Letter
Limits
A
Outside diameter of shouldered shaft at seal surface
1.1220 to 1.1270
1.1200
B
Inside diameter of bearing retainer plate
2.1654 to 2.1666
2.1671
C
Outside diameter of ball bearing
2.1649 to 2.1654
(*)(**)
C-B
Fit of ball bearing in bearing retainer plate
0.0000 to 0.0017L
D
Outside diameter of bearing sleeve
1.1814 to 1.1818
(*)(**)
E
Inside diameter of ball bearing
1.1807 to 1.1811
(*)(**)
E-D
Fit of ball bearing on bearing sleeve
0.0003T to 0.0011T
F
Backlash between gears in plane of rotation
0.0050 to 0.0090
(*)(***)
G
Outside diameter of tapered roller bearing
2.4409 to 2.4419
(*)(**)
H
Inside diameter of bearing retainer plate
2.4429 to 2.4439
(*)(**)
H-G
Fit of tapered roller bearing in retainer plate
0.0010T to 0.0020L
I
Inside diameter of pinion gear
0.9375 to 0.9380
(*)(****)
J
Outside diameter of shouldered shaft at gear surface
0.9380 to 0.9385
(*)(****)
J-I
Fit of pinion gear on shouldered shaft
0.0000 to 0.0010T
K
Inside diameter of bearing sleeve
0.8760 to 0.8770
(*)(****)
L
Outside diameter of shouldered shaft at sleeve surface
0.8752 to 0.8756
(*)(****)
L-K
Fit of bearing sleeve on shouldered shaft
0.0004L to 0.0018L
M
Outside diameter of shouldered shaft at seal surface
0.8752 to 0.8756
0.8732
N
Inside diameter of tapered roller bearing
1.3775 to 1.3780
(*)(**)
O
Outside diameter of shouldered shaft at bearing surface
1.3785 to 1.3790
(*)(****)
O-N
Fit of tapered roller bearing on shouldered shaft
0.0005T to 0.0015T
P
Inside diameter of bevel gear
1.4375 to 1.4380
(*)(****)
Q
Outside diameter of shouldered shaft at gear surface
1.4380 to 1.4385
(*)(****)
Q-P
Fit of bevel gear on shouldered shaft
0.0000 to 0.0010T
R
Outside diameter of tapered roller bearing
2.3612 to 2.3622
(*)(**)
S
Inside diameter of bearing retainer plate
2.3588 to 2.3598
2.3603
S-R
Fit of tapered roller bearing in retainer plate
0.0014T to 0.0034T
* Must be within new parts dimensions.
** Measure only if there is visual indication of bearing turning.
*** Refer to repair cooling fans right angle drive A and B (WP 0015 00).
**** Measure only if there are visual signs of wearing or damage.
END OF TASK
0016 00-18
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