TM-9-2320-273-34

TRUCK TRACTOR, LINE HAUL; LIGHT EQUIPMENT TRANSPORTER; TRUCK CHASSIS; MEDIUM EQUIPMENT TRANSPORTER

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

DECEMBER 1980

TM-9-2320-273-34 - Page 564 of 801

TM9-2320-273-34

(7) Check the upper part of the unloader cap where the packing seal seats for scoring or

excessive wear. If the top of the unloader cap sticks to the bottom of the unloader body, file a cross on

top of the unloader cap (fig. 14-15).

(8)

(9)

gaskets.

TA 074371

Figure 14-75. File Cross on Top of Unloader Body.

Check the seating area of the unloader cap for distortion, pitting, or wear.

Check the compressor head for water leakage:

(a)

(b)

(c)

Assemble the cylinder head and cylinder head cover to the crankcase using new

I

nstall capscrews and tighten alternate y to a final torque of 15-19 Ib-ft (20-26 N-m).

Plug the water outlet port and apply water under 20-30 psi (138-207 kPa) pressure

through the water inlet port.

(d) Check for leaks. Discard parts as necessary. Release pressure from the inlet. Remove

the plug from the water outlet port and replace the water outlet fitting.

(e) Remove cylinder head from crankcase.

14-17