Figure 4-5. Air cleaner and piping, exploded view.

Hose clamp

Nut

12.

Grommet

Hose clamp

Lock washer

14.

Precleaner

Hose

Restriction in

15.

Assembled washer screw

Tube assembly

10.

Hose- clamp

16.

Air cleaner clamp

Adapter

11.

Hose

17.

Air cleaner assembly

Cap screw

12.

Elbow

Figure 4-5. Air cleaner and piping, exploded view.

(4) Before the dash panel (27) can be

(3) Inspect the muffler for cracks, holes,

removed, it will be necessary to remove the pump from

severe rust, and other damage; replace a damaged

the engine (para 4 47).

muffler.

(4) Inspect the remaining parts for cracks,

(5) Disassemble

the engine housing

distortion, and other damage; replace damaged parts.

following sequence of index numbers in figure 4-7.

b. Cleaning and Inspection.

c. Reassembly. Reassembly of the muffler and

piping is the reverse of disassembly. Refer to figure 46.

(1) Clean the parts of the engine housing with

4-20. Engine Housing

a cloth dampened with cleaning solvent (fed. spec. P-

D-680); dry thoroughly.

a. Removal.

(2) Inspect all parts for rust, corrosion,

(1) Remove the air cleaner (para 4-18).

cracks, chipped paint, dents, and distortion. Straighten

(2) Remove the muffler and exhaust system

dented and distorted panels.

Remove rust and

(para 4-19).

corrosion with sandpaper, rubbing until the surface is

(3) To remove the lower left and lower right

clean and bright. Prime and paint the bare surfaces.

side panels (15 and 24, fig. 4-7), disconnect the drain

c. Installation.

Installation is the reverse of

lines from the connections on the panels.

removal. Refer to figure 4-7.

4-9