TM-9-2520-238-34

M113A1 FOV, M113A2 FOV, M548 AND M548A1

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL; RIGHT ANGLE DRIVE, COOLING FAN; GEARCASE, TRANSFER; DRIVE ASSEMBLY, FINAL; DIFFERENTIAL, STEERING CONTROL; BRAKE, SINGLE DISK; CYLINDER ASSEMBLY, HYDRAULIC BRAKE

TM-9-2520-238-34 - Page 162 of 319

TM 9-2520-238-34

REPAIR TRANSFER GEARCASE F — Continued

0019 00

3.

Check the parts dimensions with chart below to determine replacement.

Table 2. TRANSFER GEARCASE F WEAR LIMITS

Reference

Letter

Point of Measurement

Size and Fit of New Parts

Wear Limits

A

Outside diameter of ﬁrst and second intermediate

bearing cup

3.5425 to 3.5435

(*)(***)

B

Outside diameter of output bearing cup

3.5425 to 3.5435

(*)(***)

C

Fan drive pulley shaft

1.0000 to 1.0010

(*)(**)

D

Inside diameter of bore in ﬁrst intermediate retainer at

bearing surface

3.5410 to 3.5420

(*)(***)

E

Inside diameter of fan pulley hub

1.0000 to 1.0020

(*)(**)

E-C

Fit of fan pulley hub on shaft

0.0010T to 0.0020L

(*)

F

Inside diameter of bore in second intermediate retainer

at bearing surface

3.5410 to 3.5420

(*)(***)

F-A

Fit of ﬁrst and second intermediate bearing cup to

retainer bores

0.0005T to 0.0025T

(*)

G

Inside diameter of bore in output retainer

3.3449 to 3.3459

(*)(***)

G-B

Fit of output bearing cup to retainer bore

0.0005T to 0.0025T

(*)

* Must be within new parts dimensions.

** Measure only if there are visual signs of wear or damage.

*** Measure only if there is visual indication of bearing turning.

END OF TASK

0019 00-26