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 382 of 418

TM 9-2520-246-34-1

2-36. WEAR LIMIT INSPECTION. The following paragraph gives instructions for

checking the minimum and maximum wear limits to which a part or parts may be worn

before a new part is needed.

FRAME 1

NOTE

Readings must be within limits given in table 2-66. The

letter L indicates a loose fit and the letter T indicates a

tight fit. If readings are not within given limits, throw

away part and get a new one.

1.

Measure inside diameter of two bearings (1).

2.

Measure shaft outside diameter (2).

3.

Measure fit of bearings (1) on shaft diameter (2).

4.

Measure inside diameter of gear (3).

5.

Measure fit of gear (3) on shaft diameter (2).

6.

Measure output shaft cam section (4).

END OF TASK

Index Number

1

2

1 and 2

3

3 and 2

4

Table 2-66. Output Shaft Wear Limits

Item/Point of Measurement

Bearing inside diameters

Shaft outside diameters

Fit of bearings on shaft

Gear inside diameter

Fit of gear on shaft

Cam section of shaft

Size and Fit

of New Parts

(inches)

1.688

1.6885 to 1.6895

0.005 to 0.0015T

1.6900 to 1.6915

0.0005L to 0.003L

1.685 to 1.690

Wear Limit

(inches)

None

None

None

None

None

None

2-362