TM 10-4320-307-244-16CONNECTINGRODANDPISTONASSEMBLYREPLACE/REPAIR (CONT).2.Install piston rings as follows:a.Locate and position rings (7, 8, 9 and 10) so that part number, mark, or word top is toward top of piston (3).CAUTIONPiston ring breakage may occur if ringsare opened more than necessary whenbeing installed.The two-piece oil ring must be installedwith gaps of two elements 180 degreesapart.b.Install oil ring (10) using piston ring expander.NOTEEach piston ring is identified by part number andmust be installed in the proper groove.c.Install compression rings (7, 8, and 9) in proper grooves, with ring gaps equally spaced around piston (3), 90 degrees apart as shown.NOTEThe ring gaps must not be aligned with thepiston pin (6).4-120
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business