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TM 5-4320-305-24
4-9. REPLACE/REPAIR CYLINDER ASSEMBLY (Continued)
3 Install piston rings.
a. Check that piston ring gaps are offset by 120 degrees (1). The piston ring set contains three rings:
No. 1 - Trapezoidal ring (2)
No. 2 - Taper ring (3)
No. 3 - Oil control ring (4)
b. Compress rings with piston ring compressor No. 130530 (1).
4-70
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