TM 5-4310-360-14
1-12. Direct and General Support
Maintenance Data - continued.
Table 1-1. Compressor Repair and Replacement Standards
Mfr's Dimensions and
Maximum Allowable
Tolerances in
Wear and Clearance
Desired Clearance
Inches (cm)
Components
in Inches (cm)
in Inches (cm)
Maximum
Minimun
Minimum
Maximum
Cylinders:
Bore, low pressure
3 .0000
3.0010
3.0030
0.0060
0.0045
(7.6200)
(7.6230)
(0.0150)
(0.0114)
(7.6280)
1.5000
Bore, high pressure
0.0022
1.5008
1.5028
0.0009
(3.8100)
(3.8 120)
(0.0056)
(0.0023)
(3.8171)
Bores, out-of-round
0.0010
(0.0030)
Crankshatt:
Journal (rod) size
0.8746
0.8736
0.0019
0.0011
0.8750
(2.2215)
(2.2189)
(0.0048)
(2.2225)
(0.0028)
0.0010
Taper
(0.0030)
0.0010
Out of round
(0.003)
End play
0.0020
0.0020
0.0000
(0.0050)
(0.0050)
Piston to Cylinder:
Low, pressure, skirt
0.0060
2.9955
2.9950
2.9930
0.0045
(0.0150)
(7.6086)
(7.6073)
(7.6020)
(0.0114)
High pressure, skirt
0.0022
1.4991
1.4966
0.0009
1.4986
(3.8077)
(3.8014)
(0.0056)
(0.0023)
(3.8064)
-___-_-
Piston Ring Gap:
Low pressure
0.0250
0.0100
0.0150
0.0100
0.0150
(0.0254)
(0.0635)
(0.0381)
(0.0381)
(0.0254)
0.0070
High pressure
0.0220
0.0120
0.0120
0.0070
(0.0559)
(0.0305)
(0.0180)
(0.0305)
(0.0180)
1-5
