TM 5-4310-368-14
6-13.
DISASSEMBLY
a.
Table of Limits
Figure 6-42. Table of Limits
Replacement
Description
Minimum
Maximum
Max.
AIR COMPRESSOR ASSEMBLY
Piston and Pin Assembly,
First Stage
Piston Pin Diameter
19.994 mm
19.998 mm
Piston Pin Borehole
20.002 mm
20.006 mm
Piston Diameter
109.95 mm
110.0 mm
Piston Clearance in Cylinder
0.10 mm
0.20 mm
Piston Distance From Cylinder Head
1.0 mm
1.2 mm
Height of Piston Ring Groove (1st & 2nd)
3.54 mm
Height of Piston Oil Ring Groove
5.04 mm
5.05 mm
Piston Ring Gap
0.6 mm
0.8 mm
Second Stage
Piston Pin Diameter
19.994 mm
19.998 mm
Piston Pin Borehole
20.004 mm
20.009 mm
Piston Diameter
59.96 mm
60.0 mm
Piston Clearance in Cylinder
0.15 mm
Piston Distance From Cylinder Head
1.0 mm
1.2 mm
Height of Piston Ring Groove (1st & 2nd)
2.54 mm
2.55 mm
Height of Piston Oil Ring Groove
3.54 mm
3.55 mm
Piston Ring Gap
0.35 mm
0.50 mm
Third Stage
Piston Pin Diameter
19.994 mm
19.998 mm
Piston Pin Borehole
20.004 mm
20.009 mm
Piston Diameter
35.93 mm
36.0 mm
Piston Clearance in Cylinder
0.8 mm
Piston Distance from Cylinder Head
1.0 mm
1.2 mm
Height of Piston Ring Grooves
2.015 mm
2.030 mm
Piston Ring Gap
0.2 mm
0.35 mm
6-34
