TM 9-2320-365-34-1
Wear appropriate eye protection when
working under vehicle due to the
possibility of falling debris. Failure
to comply may result in injury to personnel.
Maintain engine rpm at 1,250-1,450 rpm
while performing pressure and flow tests.
Failure to comply may result in damage to
equipment.
HYDRAULIC FLOW AND PRESSURE TEST
CAUTION
WARNING
(1) Position drain pan under winch control valve.
(2) Disconnect pump supply pressure hose from
pressure port (P) on winch control valve.
(3) Connect pressure hose to hydraulic tester.
(4) Connect pressure hose from hydraulic
tester to pressure port (P) of winch control
valve.
(5) Completely open hydraulic tester load valve.
(6) Start and run engine until normal operating
temperature is reached (TM 9-2320-365-10).
(7) Engage PTO (TM 9-2320-365-10).
(8) Increase engine rpm to 1250-1450 rpm (TM
9-2320-365-10).
(9) Slowly close load valve on hydraulic tester
until 2000-2100 psi (13790-14480 kPa) is
reached and note flow on hydraulic tester.
(14) Shut down engine (TM 9-2320-365-10).
(15) Disconnect pressure hose from hydraulic
tester at pressure port (P) of winch control
valve.
(16) Disconnect pump supply pressure hose from
hydraulic tester.
(17) Connect pump supply pressure hose to port (P)
on winch control valve.
(18) Remove drain pan from under winch control
valve.
(10) If flow is not 15-18 GPM (57-70 lpm) at
2000-2100 psi, replace hydraulic rotary
pump (para 16-5).
(11) Open load valve on hydraulic tester.
(12) Decrease engine speed with manual
throttle control.
(13) Disengage PTO (TM 9-2320-365-10).
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