Hycomp Air Boosters, Installation & Operation Manual, Page: 48 / 60

48
CLEARANCES AND TOLERANCES - CRANKCASE AND CROSSHEAD
For individual compressors, measured in inches
Block / Model
Rod Bearing
Clearance
Cross Head
Piston
Clearance
Cross Head
Piston
Diameter
Crank Pin
Diameter
Wrist Pin
Bushing
Clearance
Wrist Pin
Diameter
‘A’ & ‘B’ Blocks, including
AN3A, AN4A, AN6, 2AD4A,
WN4A
0.0015 to
0.0025
0.003 to
0.004
2.9960 to
2.9930
1.7500 to
1.7505
0.0003 to
0.0006
0.8745 to
0.8755
‘C’ Block, including AN6C,
AN10C, AN26, 2AN3C,
2AN10C, 2AN11C,
2AN13C, 2AN17, WN26,
2WN10C, 2WN17
0.0015 to
0.0030
0.003 to
0.004
2.9960 to
2.9930
1.7500 to
1.7505
0.0003 to
0.0006
0.8745 to
0.8755
‘D’ Block, including AN12D,
AN17D, AN44, 2AN10D,
2AN15D, 2AN26, 2AN35,
2AN40, WN44, 2WN35,
2WN40
0.0020 to
0.0035
0.003 to
0.004
2.9960 to
2.9930
2.2475 to
2.2485
0.0003 to
0.0006
0.8745 to
0.8755
‘E’ Block, including AN14E,
AN20E, AN27E, AN72E,
2AN61, 2AN76, WN14E,
WN20E, WN72, WN90,
2WN13E, 2WN17E,
2WN22E, 2WN61, 2WN76
0.0020 to
0.0035
0.0035 to
0.0050
3.9929 to
3.9950
2.2475 to
2.2485
0.0004 to
0.0008
1.1240 to
1.1255
‘F’ Block, including
AN154, 2AN22F, 2AN137,
2WN150F, WN28F,
WN35F, WN44F, WN98
0.0025 to
0.0040
0.0045 to
0.0060
4.9925 to
4.9950
3.2509 to
3.2519
0.0005 to
0.0010
2.0000 to
2.002
‘V’ Block, including 3AN44V
0.0020 to
0.0035
0.003 to
0.004
2.9960 to
2.9930
2.2475 to
2.2485
0.0003 to
0.0006
0.8745 to
0.8755