Repair - TM-5-4930-233-140341

TM 5-4930-233-14

TM 4930-14/1

AIR COMPRESSOR ASSEMBLY

5-15. HEAD- REPLACE/REPAIR - (Cont.)

Repair

WARNING

Clean all parts in a well ventilated area. Avoid inhaling solvent fumes and prolonged exposure of

the skin to cleaning solvent. Failure to do so can cause severe injury or death. Do not use near

flame or excessive heat. Flash point of solvent is 100 to 138 (38 to 59 ).

(1)

Clean all parts in dry cleaning solvent.

(2)

Inspect all valve seat and cages for cracks, breaks, rough or scored seats and mating surfaces. Replace if

defective.

(3)

Inspect springs for distortion, weakness or broken coils. Replace if damaged.

(4)

Inspect all other parts for wear, damage or corrosion. Replace as needed.

Assembly

(1)

Install two gaskets (33), two discharge valves (32) and two cages (31).

(2)

Install two preformed packings (30), two discharge hold down covers (29) and four screws (28). Torque

screws evenly to 10 ft lbs (13.56 N-m).

(3)

Install elbow (27).

(4)

Install two gaskets (26), two inlet valves (25) and two cages (24).

(5)

Assemble inlet hold down cover assemblies (15) by installing spring (22), preformed packing (21), plunger

(20), bushing (19), fingers (18) and locknut (17) into cover (23). Repeat for other inlet hold down cover

assembly.

(6)

Install two preformed packings (16), two inlet hold down cover assemblies (15) and four screws (14). Torque

screws evenly to 10 ft lbs (13.56 N-m).

(7)

Install elbow (12) and tee (13).

(8)

Install inloader tube (11).

5-82