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 64 of 153
TM 9-2520-246-34
Section Il. REPAIR
4-4. General.
a.
This section contains disassembly and assembly
procedures for transfer model T-136-27.
b.
Clean, inspect, and follow repair procedures as
stated in Chapter 2. section III of this manual.
c.
Transfer disassembly is accomplished by the
logical step-by-step procedures in paragraphs 4-5 and
4-6. Refer to paragraphs 4-7 and 4-8 for assembly
procedures.
4-5. Disassembly of Transfer Into Subassemblies.
a. Handbrake Drum and Shoe Assembly.
Remove
the cotter pin (fig. 4-3) from the rear output shaft,
front output shaft. and front input shaft. Engage input
shaft gears in HI or LOW position. Attach shop air
hose to transfer air cylinder. Apply air and engage
front output shaft with rear output shaft. Apply the
hand brake by hand, and remove the companion flange
nuts and washers from the three shafts. Shut off shop
air hose and remove the hose from the air cylinder.
Disconnect and remove the shoe return spring.
Remove the jamnut from the shoe anchor pin.
Unscrew the anchor pin from the rear output shaft
rear bearing retainer, do not lose washers. Slide the
hand brake shoe assembly from the brakedrum. Pull
the companion flange, braked rum, and brake guard
from the rear output shaft. (See fig. 4-5.) Remove the
two capscrews and lockwashers securing the shoe stop
bracket to the transfer case and remove bracket. (See
fig. 4-3. )
b.
NOTE
Apply white lead pigment. Fed Spec TT-
W-261C, to the spline of the rear output
shaft before installing hand brake drum and
rear output shaft companion flange.
Tighten nut to 300-400 lb-ft torque. Place
washers on anchor pin to space brakeshoe
so 1.16 inch of drum shows. Tighten pin
until bind occurs when brake is applied.
and back-off
turn. Tighten locknut to
153-196 lb-ft torque.
Positioning of Transfer on Overhaul Stand.
Install transfer on overhaul stand using brackets
(items 1 and 2, table 2-1). (See fig. 4-4.)
c. Draining.
Remove transfer case magnetic drain
plug (fig. 4-3) and front output shaft cover filler plug
(fig. 4-4). inspect magnetic drain plug for chips.
NOTE
If chips are found, inspect in accordance
with repair and replacement standards.
(Refer to section V.)
(MODEL T-136-27)
d. Companion Flanges.
NOTE
Apply a coating of white lead pigment. Fed
Spec TT-W-261C, to input shaft spline
before installing companion flange. Tighten
flange nut to 300-400 lb-ft torque.
(1) Using a puller (item 4, table 2-1), remove
input shaft companion flange. (See fig. 4-5.)
NOTE
Apply a coating of white lead pigment, Fed
Spec TT-W-261C, to front output shaft
spline before installing companion flange.
Tighten flange nut to 300-400, lb-ft torque.
Figure 4-3. Removal of Handbrake Assembly.
(2) Using a puller (item 4, table 2-1) remove front
output shaft companion flange.
e. Air Cylinder.
NOTE
Reinstallation of air cylinder requires that
cleaning, inspection and repair procedures
be followed in Chapter 2, section III of this
manual.
NOTE
To eliminate air leaks, install new gaskets
and rubber seal. Make certain that the air
cylinder tube cover is tightened evenly
when reinstalled. Tighten screws to 5-9 lb-ft
torque.
4-3
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