TM 55-2210-224-34
4-8. AIR COMPRESSOR ASSEMBLY (cont)
ASSEMBLY (cont)
NOTE
The small projections on bearing halves (125) and (119) must fit in the
corresponding recesses in the rods and caps with corresponding numbers on the
same side. Tighten nuts (122) and (116) evenly until proper torque is attained.
63.
Install two bearing halves (125) in bearing cap (124) and connecting rod (137).
CAUTION
Precautions for cleanness shall be observed with the following parts to avoid
possible scoring of rings, piston, and cylinder. Oil the rings and cylinder walls
thoroughly during assembly. Check that the ring gaps are staggered.
64.
Position high-pressure cylinder (106) upside down and install high-pressure piston assembly (126) in cylinder.
65.
Position gasket (107) and high-pressure cylinder (106) with high-pressure piston a
ssembly (126) on housing
(171). Check that connecting rod (137) engages crankshaft (166). Install four capscrews (105). Torque
capscrews to 145 +5 lb-ft (203 +7 N.m). Position bearing cap (124) on crankshaft and install two connecting rod
bolts (123) and nuts (122). Torque nuts to 77.5 +2.5 lb-ft (105 +7 N.m). Install locknuts (121).
66.
Install two bearing halves (119) in bearing cap (118) and connecting rod (130).
67.
Position low-pressure cylinder (100) upside down and install low-pressure pis
ton assembly (120) in cylinder.
68.
Position gasket (101) and low-pressure cylinder (100) with low-pressure piston assembly (120) on housing (171).
Check that connecting rod (130) engages crankshaft (166). Install four capscrews (99). Torque capscrews to
145 +5 lb-ft (203 +7 N.m). Position bearing cap (118) and install two connecting rod bolts (117)-and nuts (116).
Torque nuts to 77.5 +2.5 lb-ft (105 +7 N.m). Install locknuts (115).
69.
Position gasket (104) and high-pressure cylinder head (103)on high-pressure cylinder (106) and install eight
capscrews (102). Torque capscrews to 62.5 +2.5 lb-ft (87.5 +3.5 N.m).
70.
Position gasket (98) and cylinder head (97) on low-pressure cylinder (100) and install eight capscrews (96).
Torque capscrews to 62.5 +2.5 lb-ft 87.5 +3.5 to N.m).
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