TM 5-4310-358-14
Table 5-2. Compressor Repair and Replacement Standards
Manufacturer's
Maximum
dimensions and
allowable
tolerances in
wear
U.S. and Metric
and
Component
measurements
Desired clearance
clearance
Minimum
Maximum
Minimum
Maximum
Cylinders
Bore, low pressure
4.6245
4.6255
0.004
(11.7462)
(11.7488)
(0.6350)
Bore, high pressure
2.4995
2.5005
0.002
(6.3488)
(6.3513)
(0.0008)
Out-of-round
0.001
(0.0025)
Taper
0.001
(0.0025)
Crankshaft
Journal (rod) size
1.263
1.625
(4.1149)
(4.1275)
Taper
0.001
(0.0025)
Out-of-round
0.005
(0.0127)
End play
0.000
0.002
(0.0051)
Piston, low pressure
4.619
4.620
0.003
0.005
0.005
(11.7323)
(11.7348)
(0.0076)
(0.0127)
(0.0127)
Piston, high-pressure
2.4965
2.4975
0.0015
0.003
0.003
(6.3411)
(0.0076)
(0.0076)
Pin, low pressure
0.8125
0.8128
0.0000
0.0005
(2.0638)
(2.0645)
(0.0013)
Pin, high-pressure
0.8125
0.8128
0.0000
0.0005
(2.0638)
(2.0645)
(0.0013)
Bearing, I.D.
0.8125
0.8130
0.001
0.007
(2.0606)
(2.0650)
(0.0025)
(0.0178)
Bearing side clearance
0.010
0.017
(0.0254)
(0.0432)
NOTE
The manufacturer's dimensions and tolerances are given in U.S. and Metric
measurements. All Metric units are enclosed in brackets.
5-20