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 TM 55-1905-221-14-2
RAMP HOIST COUNTERBALANCE VALVE (Continued).
LOCATION/ITEM
ACTION
REMARKS
REMOVAL (Cont) |
b. This bypass and check valve is used as
an adjustable pressure bypass valve to
maintain sufficient pressure in pump
circuit for operation of the winch
brake. It ensures positive control
of the ramp lowering.
WARNING
The oil pressure in the system must be released prior to servicing the pump or other
parts to prevent possible injury to personnel or equipment.
(1) Disconnect cable from
winch to remove load
from system.
(2) Open ball valve (1), and
disconnect line (2).
(3) Clean pipe connections
(3), disconnect pipe
from valve, and cap
the open ends.
(4) Remove counterbalance
valve (4).
5-94
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