Section II. REPAIR (MODEL WN-7-28)

TM 9-2520-246-34

Section II. REPAIR (MODEL WN-7-28)

5-5. General.

Discard the gasket.

a. This section contains disassembly and assembly

(2) Remove the poppet retainer (fig. 5-3). Turn

instructions for power takeoff model WN-7-28.

the power takeoff on the side and remove the poppet

spring and ball.

b. Cleaning and repair procedures are contained in

NOTE

chapter 2, section III of this manual.

c. Use a separate container for the parts of each

During assembly of the power takeoff,

subassembly. If more than one power takeoff is being

always install a new cover gasket.

rebuilt at the same time, use marked, separate

containers for each power takeoff to avoid getting

b. Shifter Shaft and Shifter Fork.

individual parts mixed up.

(1) Remove the safety wire and fork setscrew

d. Power takeoff disassembly and assembly are

from the shifter fork. (See fig. 5-4.)

accomplished by the following logical step-by-step

procedures. The assembly procedures are provided

(2) Remove the shaft capscrew and flatwashers

only where special attention to a part or an assembly

from the end of the shifter shaft. (See fig. 5-4.) Pull

is required. Refer to paragraph 5-7 for the sequence of

the shifter shaft rearward through the shifter fork.

assembly operations. Assembly of the power takeoff is

Remove the shifter fork and continue to slide the

the exact opposite of disassembly, unless otherwise

shifter shaft from the power takeoff case.

specified.

NOTE

5-6. Disassembly and Assembly (Model WN-7-

28).

During assembly, install the shifter fork

with the screw hole on the rear side.

a. Power Takeoff Cover, Poppet Retainer, and

Poppet Spring and Ball.

c. Input Gearshaft and Input Gear.

(1) Remove the six capscrews and star washers

(1) Remove the input gearshaft cotter pin from

securing the power takeoff cover to the carrier. (See

the input gearshaft. (See fig. 5-5.) Using a soft

fig. 5-3.) Remove the cover and the cover gasket.

driftpin, drive the input gearshaft from the case.

Figure 5-3. Removal of Power Takeoff Cover, Poppet

Retainer, Poppet Spring and Ball.

Figure 5-4. Removal of Shifter Shaft and Shifter Fork.

5-3