Assembly - (cont.) - TM-5-4930-233-140333

TM 5-4930-233-14

TM 4930-14/1

AIR COMPRESSOR ASSEMBLY

5-14. AIR COMPRESSOR - REPAIR - (Cont.)

Assembly - (cont.)

(6)

If fit is good, drive roll pin (42) into wrist pin (43) when holes are in line.

(7)

At this time the combined piston and rod should turn slowly on the crankshaft of their own weight. If this is

not true, re-torque screws (47).

(8)

Install gasket (41), oil filler plug (40) and two plugs (39).

(9)

Install bearing cup (36) into base (37).

(10) Install washer (34) and weight retainer and shaft (33).

(11) Install key (25) and tape key in place.

(12) Install crankshaft and cone assembly (26) and oil feed ring (27) into base and cup assembly (14).

(13) Install bearing cup (22) into end cover (23).

(14) Install spring (31), air valve (30), two bumper springs (32), two weights (29), plunger (18) and two rivets (28)

to weight retainer and shaft (33).

(15) Install end cover and cup assembly (20) and six screws (19) along with gaskets (21). Gaskets should be

selected so that crankshaft can be spun in the bearings without end play. Also ensure that oil feed ring (27)

turns freely within the guide lugs in the gasket. Torque screws (19) to 10 ft lbs (13.56 N-m).

(16) Slide oil seal (35) over crankshaft and press into place in the base. Be sure that the seal side is toward the

crankcase. Do not hammer directly on the seal.

(17) Install elbow (16) and locknut (17).

CAUTION

Do not screw elbow into end cover to far or malfunction of equipment can occur leading to

permanent equipment damage.

(18) Screw elbow (16) into end cover and cup assembly (20) until part of valve (30) can be seen when looking

into tube opening of elbow. Tighten jam nut.

5-74