Table 1. DIFFERENTIAL STEERING CONTROL ASSEMBLY WEAR LIMITS

TM 9-2520-238-34

REPAIR DIFFERENTIAL STEERING CONTROL ASSEMBLY -- Continued

0026 00

Check the parts dimensions with chart below to determine replacement.

Table 1. DIFFERENTIAL STEERING CONTROL ASSEMBLY WEAR LIMITS

Reference

Point of Measurement

Size and Fit of New Parts

Wear Limits

Letter

Thickness of thrust washer

0.2180 to 0.2220

(*)

Inside diameter of brake drum sleeve bearing

3.2590 to 3.2600

(*)

Inside diameter of flange bushing

2.2490 to 2.2505

(*)

Inside diameter of spider

2.253 to 2.255

(*)(***)

With sleeve bearing 8756536 installed

2.249 to 2.251

Outside diameter at bearing surface of gear shaft

1.0550 to 1.0560

(*)

Inside diameter of flange bushing

1.0600 to 1.0610

(*)

F-E

Fit of bushing on gear shaft

0.0040L to 0.0060L

(**) 0.0080L

Inside diameter of bearing

2.9522 to 2.9528

(*)(****)

Outside diameter of bearing

5.1173 to 5.1181

(*)(****)

H-I

Fit of bearing in housing

0.0016L to 0.002T

Outside diameter of drum

13.175 to 13.185

(1)

Outside diameter of bearing surface of flange hub

2.9527 to 2.9533

(*)

K-G

Fit of bearing on flange hub

0.0001L to 0.0011T

(*)

Outside diameter of bearing suface of flange hub

3.2500 to 3.2510

(*)

L-B

Fit of sleeve bearing on flange hub

0.0080L to 0.0100L

(**) 0.0150L

Outside diameter of gear hub

2.2470 to 2.2480

(*)(***)

M-C

Fit of bushing on gear hub

0.0010L to 0.0035L

0.0065L

M-D

Fit of spider on gear hub

0.005L to 0.0080L

0.0100L

With sleeve bearing 8756536 installed in spider

0.0010L to 0.0040L

(1) Machined drum wall thickness 0.250 inches (0.64 mm).

* Must be within new parts dimensions.

** Wear is allowed on either or both mating parts as long as fit is within specified limit.

*** Measure only if there is visual indication of wear or damage.

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

END OF TASK

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