Air Cylinder Shifter Shaft Assembly.

TM 9-2520-246-34-1

FRAME 1

Check that shifter shaft (1) is not bent or cracked. Throw away bent or

cracked shifter shaft.

Check that shifter fork (2) is not bent or cracked. Throw away bent or

cracked fork.

NOTE

Readings must be within limits given in table 2-16. If

readings are not within given limits, throw away part

and get a new one.

Measure diameter of shifter shaft (1).

Measure width of two shifter fork pads (3).

Measure to check that shifter fork pads (3) are perpendicular to shifter fork

bore (4).

Measure height of spring (5).

END OF TASK

Table 2-16. Air Cylinder Shifter Shaft Assembly Wear Limits

Size and Fit

of New Parts

Wear Limit

Index Number

Item/Point of Measurement

(inches)

Shifter shaft outside diameter

0.8715 to 0.8725

0.8685

0.562 to 0.572

Shifter fork pad width

0.5550

Shifter fork perpendicularity of pad

3 and 4

to bore

0.005

0.030

2.55 minimum

Free height of spring

2.64 to 2.85

2-176