(m) Install two wear rings (13) and one
seal (14) on piston (12). Position
wear rings so that gaps are 180°
Use care when installing rod and
piston assembly. Keep rod in line
with cylinder tube to prevent
binding. Failure to follow this
precaution will cause part damage.
Lubricate cylinder tube (2) inner
diameter, piston (12) outside
diameter, and gland (10) outside
diameter with clean hydraulic oil.
Position rod (9) and piston (12) as an
assembly in cylinder tube (2).
Tighten gland so that it is flush with
end of cylinder tube. Do not
Tighten gland (10) onto cylinder
Install back-up rings (3 and 4), two back-up rings (5), and three preformed packings (6, 7, and
8) on counterbalance valve (1).
Install counterbalance valve (1) in cylinder tube (2).
Follow-on Maintenance: Install boom hoist cylinder (TM 10-3930-673-20).
END OF TASK