Table 7-12. Repair Standards (Bevel Drive Gear)

TM 9-2520-249-34& P

c. If inner race of bearing assembly (36, FO-

e. Before proceeding further with the

5) was removed, install a new race into the opposite

assembly, refer to paragraph 8-3 for the procedure to

side of bevel drive gear (44). Press the race until it is

determine the nominal shim dimension between pinion

firmly seated in the gear.

bearing support (38, FO-5) and bevel pinion carrier (32).

d. Using replacer (21, table 3-1), install the

Record the mounting distance (MD) and

bearing inner race into the bevel pinion bearing support.

backlash (BL) as etched on bevel drive gear (44).

Press the race until firmly seated on the support (fig.

g. Install shims to obtain proper nominal

7-25).

spacing. If no new parts were installed in the bevel

drive gear assembly, install the original shim pack used

on the carrier.

h. Install the bearing support and shims onto

the bevel pinion carrier, alining the bolt holes (fig. 7-19).

Secure the bearing support to the bevel

pinion carrier with two flat-head screws (fig. 7-19).

Figure 7-25. Installing bearing inner race onto pinion

bearing support

Table 7-12. Repair Standards (Bevel Drive Gear)

Wear limit

Reference

Size and fit

DS/GS

Foldout

Item

Point of measurement

of new parts

maintenance

32a

Outside diameter at bearing surface of .

1.9385 to 1.9390

1.9382

carrier

35a

Inside diameter of bearing inner race ....

1.9375 to 1.9380

32a,

Fit of bearing inner race on carrier .......

0.0005T to 0.0015T

35a

Outside diameter of bearing outer race .

4.0625 to 4.0635

44b

Inside diameter at bearing surface of gear

4.0605 to 4.0615 4.0620

35a

Fit of bearing outer race in gear ...........

0.00 I10T to 0.0030T

44b

42a

Outside diameter at ball bearing surface of 0.9839 to 0.9849

0.9836

gear

38a

Inside diameter of bearing assembly ....

0.9839 to 0.9843

5.11

42a.

Fit of bearing on gear ...........................

0.00 0T to 0.0004L

38a

36a

Outside diameter of bearing outer race .

6.5000 to 6.5010

44a

Inside diameter at bearing surface of gear

6.4970 to 6.4990

6.4995

36a,

Fit of bearing outer race in gear ............

0.00 01T to 0.0040T

44a

*See foot not at the end of table.

7-22