TM 5-4310-384-13
CAUTION
Pistons, connecting rods, caps, and bushings are matched parts and seat with the operation of the
compressor. They must keep their original positions at reassembly. Mark each connecting rod and cap,
piston, and bearing component to be sure they match when they are reassembled. Also mark the
cylinders from which they are removed.
j.
Rotate crankshaft until high pressure piston (11 ) journal is at TDC and install connecting rod (10), cap (9) and
capscrews (7 and 8). Capscrew (8) is an oil slinger and must be assembled as shown. Be sure connecting rods (10) and
cap (9) mate as marked.
k.
Rotate crankshaft until low pressure piston (6) journal is at TDC and repeat step j for low pressure connecting rod
assembly.
NOTE
To prevent air leaking past pistons, turn rings on pistons so that ring gaps are not in line with each other.
l.
Install new cylinder gasket (4).
m. Use suitable ring compressor to compress piston rings and install cylinder (2) onto crankcase.
n.
Install capscrews (1) securing cylinder (2) to crankcase (3). Tighten capscrews.
o.
Install cylinder head and intake/exhaust valve assemblies. Use new gaskets for reassembly. Refer to paragraph
3-32.
p.
Install compressor unit on tank saddle. Refer to paragraph 3-27.
q.
Fill crankcase with 16 oz. (.5 L) of OE-30 oil. Refer to paragraph 3-2 for proper viscosity.
r.
Connect main power and turn compressor on.
s.
Check all mating surfaces, gaskets, fittings, and mounting hardware for secure attachment.
4-7
