TM-9-2520-246-34
TRANSMISSION MODEL 3052, NSN 2520-00-347-4520
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT; MAINTENANCE MANUAL
MAY 1978
TM-9-2520-246-34 - Page 67 of 153
TM 9-2520-246-34
Figure 4-12. Bearing Covers and Case Plug.
Remove the 18 capscrews, nuts, and lockwashers
securing the case cover to the case. (See fig. 4-9.)
Install puller screws in the two puller screw holes
located in the flange of the case cover. If necessary,
tap on the end of the input shaft and the end of the
shifter shaft with a mallet. Lift the cover assembly
from the case. Remove and discard the gasket.
Remove the inner thrust washer from the input shaft.
Remove the shifter shaft seal.
k. Rear Output Shaft Assembly.
With the case
cover removed, lift the rear output shaft assembly
from the transfer case. (See fig. 4-10.)
l. Top Cover and Shelter Shaft.
safety wire from the fork setscrew. Remove the
setscrew, then remove the shifter shaft from the fork
assembly. Check the breather assembly. Remove and
clean or replace it, as necessary.
m. Countershaft Rear Bearing Cover.
NOTE
During assembly, tighten countershaft rear
bearing capscrews to 60-77 lb-ft torque.
Use shims to obtain 0.002- to 0.005-inch
end play. The shims are provided as a set.
The part number for the set is 7521437; the
part numbers for shim sizes are:
NOTE
Ordnance No.
Thickness
During assembly, use new gasket and
7521441
.003 ± .0005
install new safety wire. Tighten setscrew to
7521446
.005 ± .0005
90-118 lb-ft torque.
7521447
.010 ± .001
Remove the four capscrews and lockwashers
Remove the four capscrews and
securing top cover to the transfer case. (See fig. 4-11.)
lockwashers securing the countershaft rear
Remove the top cover and top cover gasket. Discard
bearing cover to the transfer case. (See fig.
the gasket. Remove the shifter shaft spring, plunger,
4-12.) Remove cover and rear bearing
and ball. Using a pair of wire cutters, remove the
shims.
4-6
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