Section III. REPAIR (MODEL 3052)

TM 9-2520-246-34

Section III. REPAIR (MODEL 3052)

3-7. General.

a. Clean the exterior of the transmission in

accordance with Chapter 2, section III of this manual.

b. Refer to Chapter 2, section II of this manual for

troubleshooting procedures.

c. When a transmission is repaired, it must be

disassembled completely so that the parts may be

thoroughly cleaned and inspected for wear or damage.

Refer to Chapter 2, section III of this manual for

instructions on the repair and rebuilding of the

transmissions.

d. Disassembly is accomplished in two stages: first,

disassembly into subassemblies; second, disassembly of

the subassemblies. Always use separate containers for

the parts of each subassembly. If more than one

Figure 3-16. Removal of Clutch Release Bearing

transmission is being rebuilt at the same time,

Support Assembly.

provision must be made for keeping the parts of each

transmission separate. This is especially important

case. (See fig. 3-18.) Remove clutch bell housing

when some parts are to be used again.

gasket from the face of the transmission case.

e. Disassembly of the transmission is accomplished

b. Shifter Shaft Cover. Position the transmission

by following logical step-by-step procedures.

shifter shaft in neutral. Remove the eight capscrews

Paragraph 3-8 provides disassembly to the

and washers securing the shifter shaft cover, and lift

subassembly level, paragraph 3-9 provides the

straight up to clear transmission case; discard the

disassembly procedures from the subassembly level to

cover gasket (See fig. 3-19.)

the piece part. Assembly procedures are given only

where special attention to a part or assembly is

NOTE

required or needed. The assembly of the transmission

is the exact opposite of disassembly except where

When installing shifter shaft cover, position

otherwise specified for clarity. Always use new gaskets

the shifter shaft in neutral and place the

and seals during assembly.

shifter forks in the mainshaft synchronizer

grooves. (See fig. 3-20.)

3-8. Disassembly of Transmission Into

Subassemblies.

a. Clutch Release Assembly.

(1) Unhook the two support springs securing the

release bearing support assembly to the clutch release

yoke and remove from the input shaft bearing cap.

(See fig. 3-16.)

(2) Remove the two capscrews and lockwashers

securing the clutch release yoke to the clutch shaft.

(See fig. 3-16.) Partially slide the clutch release shaft

through the clutch bell housing and remove the two

yoke keys from the shaft. (See fig. 3-17.) Remove the

clutch release yoke from the shaft and complete the

removal of the clutch release shaft from the clutch

housing.

(3) Remove the five capscrews and lockwashers

Figure 3-17. Removal of Clutch Release Yoke and

securing the clutch bell housing to the transmission

Release Shaft.

3-11