TM-9-2520-246-34-1
TRANSMISSION MODEL 3053A; TRANSMISSION TRANSFERS MODEL T-136-21 AND MODEL T-136-27; POWER TAKEOFFS MODEL WN-7-28, MODEL WND-7-28 AND MODEL P-136-C
TECHNICAL MANUAL; MAINTENANCE, DIRECT SUPPORT AND GENERAL SUPPORT LEVEL
JANUARY 1981
TM-9-2520-246-34-1 - Page 21 of 418
TM 9-2520-246-34-1
CHAPTER 2
EQUIPMENT GROUP MAINTENANCE
Section I. SCOPE
2-1.
EQUIPMENT ITEMS COVERED.
Transmission model 3053A, transfer models
T-136-21 and T-136-27, and power takeoff models WN-7-28, WND-7-28, and P-136-C
used on the 2 1/2-ton, 6x6 series trucks are covered in this manual.
2-2.
EQUIPMENT ITEMS NOT COVERED.
All equipment items are covered in this
manual.
Section II.
MAINTENANCE OF TRANSMISSION
TOOLS:
Mechanical puller kit, pn 8708724
Mechanical puller adapter, pn 7083254
Power train rebuild tool kit, pn 7950356
SUPPLIES:
Dry cleaning solvent, type II (SD-2), Fed. Spec P-D-680
Multipurpose lubricant, GO 85/140, MIL-L-2105
Lubricating oil, ICE, OE/HDO 10, MIL-L-2104
Artillery and automotive grease, type GAA, MIL-G-10924
Safety wire MS20995F47
Transmission assembly gasket set
Clutch housing seal
Rear bearing mainshaft seal
Tags
Wood block 6 inches x 6 inches x 1 inch
Wood block 12 inches x 4 inches x 1 inch (2)
Compressed air source, 30 psi max
PERSONNEL: Two
EQUIPMENT CONDITION:
Transmission on workbench.
2-3. CLEANING BEFORE DISASSEMBLY. This paragraph gives instructions for
cleaning the transmission assembly before disassembly. Note and scribe transmission
case in places that have oil soaked road mud.
It is not necessary to mark oil spots
around gaskets or seals since new gaskets and seals will be put in. Scrape, brush,
and steam clean all dirt and road mud from transmission assembly.
2-1
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