Reciprocating Compressor M Series
5-40
5.5.11.2 Assembly of the Piston Rings
z Attach the piston ring (1st) and piston ring (2nd) so that the side with a marking
(R mark) faces upwards. Entry of oil may occur.
1. Attach the piston ring (1st) (a) and piston ring (2nd) (b) so that the side with a marking (R mark) (e) faces
upwards.
2. Attach the oil control ring (3rd) (c) so that the notch (h) is positioned to the opposite side of the expansion
coil (d) adjustment position (i).
3. Attach the piston ring (1st) (a), piston ring (2nd) (b), and oil control ring (3rd) (c) by staggering their
notches (f), (g), (h) 120–degrees so that they are not overlapped.
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