TM-9-2520-246-34-1

TRANSMISSION MODEL 3053A; TRANSMISSION TRANSFERS MODEL T-136-21 AND MODEL T-136-27; POWER TAKEOFFS MODEL WN-7-28, MODEL WND-7-28 AND MODEL P-136-C

TECHNICAL MANUAL; MAINTENANCE, DIRECT SUPPORT AND GENERAL SUPPORT LEVEL

JANUARY 1981

TM-9-2520-246-34-1 - Page 199 of 418

TM 9-2520-246-34-1

d.

Countershaft Assembly.

FRAME 1

1.

2.

3.

4.

Measure

Measure

Measure

Measure

NOTE

Readings must be within limits given in table 2-19. If read-

ings are not within given limits, throw away part and get a

new one.

two inner bearing races (1) and two outer bearing races (2).

two gear bores (3).

keyway width (4) in two gears.

width of two keys (5).

GO TO FRAME 2

Table 2-19. Coutershaft Gears and Bearings Wear Limits

Index Number

1

2

3

4

5

Item/Point of Measurement

Bearing inner race diameter

Bearing outer race diameter

Gear bore

Gear keyway width

Key width

—

Size and Fit

of New Parts

(inches)

2.000 to 2.0005

4.000 to 4.0010

2.375 to 2.376

0.5000 to 0.5025

0.5000 to 0.5010

Wear Limit

(inches)

None

None

2.3765

0.5052

None

2-179