TM 9-2320-279-34-3
M977, M985, and M984E1 Crane Maintenance Instructions (Cont)
(12) Remove setscrew (23).
(13) Remove piston (22) from rod (12).
(14) Remove two backup rings (24) and preformed
packing (25).
b. Cleaning/Inspection.
WARNING
Adhesives, solvents, and sealing compounds can burn
easily, can give off harmful vapors, and are harmful to
skin and clothing. To avoid injury or death, keep away
from open fire and use in well-ventilated area. If
adhesive, solvent, or sealing compound gets on skin or
clothing, wash immediately with soap and water.
(1) Clean all metal parts in dry cleaning solvent.
(2) Inspect each part for damage.
(3) Replace damaged parts.
c. Assembly.
(1) Install preformed packing (1) and two backup rings (2)
on rod (3).
WARNING
Adhesives, solvents, and sealing compounds can burn
easily, can give off harmful vapors, and are harmful to
skin and clothing. To avoid injury or death, keep away
from open fire and use in well-ventilated area. If
adhesive, solvent, or sealing compound gets on skin or
clothing, wash immediately with soap and water.
(2) Apply sealing and thread locking compound and install
piston (4).
(3) Install setscrew (5).
(4) Install wear ring (6), preformed packing (7), two backup rings (8), and wear ring (9) on piston (4).
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