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 68 of 153
n. Rear Output Shaft Rear Bearing Retainer.
NOTE
During assembly, tighten the rear output
shaft rear bearing retainer 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 and shim
sizes are:
Ordnance No.
Thickness
7521277
.003 ± .001
7521278
.005 ± .001
7521279
.010 ± .001
Remove the six capscrews and lockwashers
securing the rear output shaft rear bearing retainer to
the transfer case. (See fig. 4-12.) Remove bearing
retainer and shims from the rear output shaft bearing
retainer.
o. Input Shaft Rear Bearing Cover.
NOTE
During assembly, install a new gasket.
Tighten capscrews to 60-77 lb-ft torque.
Remove the six capscrews and lockwashers
securing the input shaft rear bearing cover to the
transfer case. (See fig. 4-12.) Remove rear bearing
cover and gasket; discard the gasket.
shaft plug (fig.
12) from PTO
TM 9-2520-246-34
4-11). Remove valve assembly (fig. 4-
flange.
NOTE
On assembly, install the valve with spring
toward inside of case.
4-6.
a.
Disassembly of Subassemblies.
Rear Output Shaft Disassembly and Assembly.
p. Shifter Fork, Input Shaft Assembly and
Countershaft Assembly.
Using a soft pin and hammer,
drive the input shaft loose. (See fig. 4-13.) Then lift
the input shaft assembly, synchronizer assembly, fork
assembly, and countershaft assembly from the transfer
case.
q. Transfer Case Shifter Shaft Plug and Valve
Assembly.
Using a suitable tool, remove the shifter
b.
NOTE
Before pressing the gear and bearings on
rear output shaft, coat shaft with white
lead pigment, Fed Spec TT-W-261C. When
assembling the rear output shaft assembly,
install the parts separately, so as not to
damage front and rear bearings.
(1) Place rear output shaft assembly (fig. 4-14) in
an arbor press with front tapered roller bearing cone
up. Place support bars beneath the cone. Press shaft
from cone.
(2) Place rear output shaft assembly (fig. 4-14) in
an arbor press with the rear output shaft driven gear
up. Place support bars beneath the rear output shaft
driven gear and press shaft free of the gear. Removal
of the rear output shaft driven gear in this manner
will also push the rear output shaft rear bearing from
the shaft. Remove the woodruff key from the shaft.
Figure 4-13. Shifter Fork, Input Shaft, and Countershaft.
Figure 4-14. Rear Output Shaft Disassembly
— Exploded View.
Countershaft Disassembly and Assembly.
NOTE
Before pressing the gears and bearings on
countershaft, coat shaft with white lead
pigment, Fed Spec TT-W-261C. When
assembling the countershaft assembly,
install parts separately so as not to damage
front and rear bearings. Discard old
capscrew locking plates and replace with
new.
4-7
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