TM 9-2320-279-34-2
Winch Maintenance Instructions (Cont)
16-15. HEAVY-DUTY WINCH COUNTERBALANCE VALVE REMOVAL/REPAIR/INSTALLATION
(M984) (CONT).
b. Disassembly.
NOTE
Mark elbow fittings,
(1) Remove preformed
packing (1).
(2) Remove elbow fitting (2) and
remove preformed packing (3)
from elbow fitting.
(3) Remove spool plug (4), spool
spring (5), washer (6), and
spool (7).
(4) Remove spool orifice plug (8)
from spool (7).
(5) Remove preformed packing (9)
(6)
(7)
(8)
(9)
from spool plug (4).
Remove poppet plug (10) and preformed packing (11).
Remove pipe plug (12) and poppet orifice
plug (13) from counterbalance valve body (14).
Remove plug (15) and preformed packing (16)
from counterbalance valve body (14).
Remove poppet plug (17), preformed
packing (18), compression spring (19), poppet
spring (20), and poppet (21) from
counterbalance valve body (14).
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)
(2)
(3)
(4)
(5)
Clean all metal parts in dry cleaning solvent.
Inspect all parts for damage.
Compression spring, poppet spring, and spool spring must be replaced if load-height
specifications as listed in Table 16-1 are not met.
Check valve body for cracks.
Replace damaged parts.
16-56
