TM 9-2320-279-34-3
M977, M985, and M984E1 Crane Maintenance Instructions (Cont)
c. 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 drycleaning solvent.
(2)
Inspect each part for damage.
(3)
Replace damaged parts.
d. Assembly.
NOTE
Perform steps (1) through (3) for Model A.
Perform steps (4) through (11) for Model B
(1)
Install preformed packing (1), preformed
packing (2), two backup rings (3), backup
ring (4), and preformed packing (5) on
holding valve (6).
(2)
Install holding valve (6) in control valve (7).
(3)
Apply pipe thread sealing compound and
install three plugs (8)1, preformed packing (9),
elbow (10), two preformed packings (11), and
fittings (12).
(4)
Apply hydraulic oil to preformed
packings (13) and (9) and backup rings (14)
and (12).
(5)
Install two backup rings (14), preformed
packing (131, backup ring (12), and
preformed packing (11) on safety valve (8).
(6)
Install orifice (10), preformed packing (9),
and safety valve (8) in housing (3).
Change 3
17-95
