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 TM 55-1905-221-14-2
RAMP HOIST COUNTERBALANCE VALVE (Continued).
LOCATION/ITEM
ACTION
REMARKS
INSTALLATION (Cont)
ADJUSTMENT
8.
Counter-
a. Disconnect cable from winch to
balance
remove load from system.
valve
b. Install 3000 psi pressure gage,
with shutoff valve, in system at
tee fitting or port in counterbalance
valve.
c. Place control valve in position for
lowering pump.
d. Adjust knob on top of valve until
system pressure is 300 psi. A pilot
pressure of 300 psi will open the
counterbalance valve and allow the
ramp to be lowered.
5-100
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