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 4 of 418
TM 9-2520-246-34-1
Paragraph
Chapter I — Continued
Cleaning . . . . . . . . . . . . . . . .
Painting . . . . . . . . . . . . . . . .
Torque Values . . . . . . . . . . . . .
Special Tools and Equipment . . . . . .
Safety Inspection and Testing of Lifting
Devices . . . . . . . . . . . . . . . .
Forms and Records . . . . . . . . . . .
Equipment Improvement Report and
Maintenance Digest (EIR MD) and
Equipment Improvement Report
and Maintenance Summary (EIR MS) . .
Reporting Improvement Recommendations
Metric System . . . . . . . . . . . . .
Quality Assurance/Quality Control . . .
Description . . . . . . . . . . . . . . .
General . . . . . . . . . . . . . . .
Transmissions . . . . . . . . . . . .
Transmission Transfers. . . . . . . .
Power Takeoffs (Models WN-7-28,
WND-7-28, and P-136-C) . . . . . . .
CHAPTER 2.
EQUIPMENT GROUP MAINTENANCE
Section I.
Scope
Equipment Items Covered . . . . . . . .
Equipment Items Not Covered . . . . . .
II.
Maintenance of Transmission
Cleaning Before Disassembly . . . . . .
Disassembly of Transmission into
Subassemblies . . . . . . . . . . . . .
Shifter Shaft Cover . . . . . . . . .
Backlash Check . . . . . . . . . . .
Clutch Release Assembly . . . . . . .
Companion Flange . . . . . . . . . .
Mainshaft Rear Bearing Cap . . . . . .
Countershaft Rear Bearing and Cover .
Power Takeoff Access Cover (Trucks
Without Power Takeoff Installed) . . .
Input Shaft Bearing Cap . . . . . . .
Mainshaft Assembly . . . . . . . . .
Input Shaft Assembly . . . . . . . . .
Countershaft Assembly . . . . . . . .
Reverse Idler Gear Assembly . . . . .
Disassembly of Subassemblies . . . . . .
Input Shaft Assembly . . . . . . . . .
Mainshaft . . . . . . . . . . . . . .
Countershaft Assembly . . . . . . . .
1-4
1-5
1-6
1-7
1-8
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1-14
l-14a
l-14b
1-14c
l-14d
2-1
2-2
2-3
2-4
2-4a
2-4b
2-4c
2-4d
2-4e
2-4f
2-4g
2-4h
2-4i
2-4j
2-4k
2-41
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2-5a
2-5b
2-5c
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