TM 9-2320-366-34-1
2-1033
INPUT FLOW RATE TEST
(1) Remove wrecker control panel splash guard
(TM 9-2320-366-20-4).
(2) Place drain pan under vehicle.
(3) Disconnect tube from supply end of tee
connector.
(4) Connect hydraulic tester between hose and
fitting with hoses and adapters.
(5) Start engine (TM 9-2320-366-10-1).
(6) Position PTO switch to on (TM
9-2320-366-10-1).
(7) Increase engine rpm to 1250-1450 rpm (TM
9-2320-366-10-1).
(8) Push in and hold MANUAL OVERRIDE
(TM 9-2320-366-10-1).
(9) Position TELESCOPE IN to IN (TM
9-2320-366-10-1) and note reading.
(10) Observe flow reading of 14-15 gpm
(53-57 lpm) at 3000-3100 psi
(20685-21375 kPa).
(11) If flow is not between 14-15 gpm (53-57 lpm)
or pressure is not between 3000-3100 psi
(20685-21375 kPa), replace input check valve
(para 16-59).
(12) Position PTO switch to off (TM
9-2320-366-10-1).
(13) Shut down engine (TM 9-2320-366-10-1).
(14) Disconnect hydraulic tester from fitting and tee.
(15) Connect fitting to tee using new preformed
packing.
(16) Remove drain pan.
Drop hydraulic pressure to zero before
disconnecting any hydraulic hose, tube,
or fitting. Failure to comply may result in
injury to personnel.
WARNING
Wear approved eye protection when
performing pressure checks. Failure to
comply may result in oil getting into eyes.
If oil contacts eyes, seek medical
attention immediately.
Fuel and oil are slippery and can cause
falls. Wipe up spilled fuel or oil with rags.
Failure to comply may result in injury to
personnel.
NOTE
Tag hydraulic hoses, tubes, and fittings
prior to removall.
