TM 9-2320-366-34-1
THREE STAGE HYDRAYLIC PUMP FLOW TEST
(1) Place drain pan under vehicle.
(2) Disconnect supply hose from affected
pump stage (A, B, or C) at back of control
panel.
(3) Connect hydraulic tester output to hose and
hose to metal supply line at back of control
panel.
(4) Connect disconnected supply hose to input of
hydraulic tester.
(5) Completely open hydraulic tester load valve.
(6) Start engine (TM 9-2320-366-10-1). Allow
engine to run until reaching normal operating
temperature.
(7) Engage PTO (TM 9-2320-366-10-1).
(8) Increase engine RPM until 1250-1450 RPM
is reached (TM 9-2320-366-10-1) and note
reading on hydraulic tester.
(9) If flow is less than 5 gpm (19 lpm), replace
three stage hydraulic pump (para 16-92).
(10) Decrease engine rpm to 750 rpm.
(11) Position PTO switch to off
(TM 9-2320-366-10-1).
(12) Shut down engine (TM 9-2320-366-10-1).
(13) Disconnect hydraulic tester from vehicle and
disassemble test equipment: two hoses from
hydraulic tester.
(14) Connect supply hose to fitting.
(15) Remove drain pan from under vehicle.
2-973/(2-974 Blank)
