TM 9-2320-366-34-1
2-1075
INPUT FLOW RATE TEST
NOTE
Do not apply crane electrical power,
unless step requires crane power.
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.
Drop hydraulic pressure to zero before
disconnecting any hydraulic hose, tube, or fitting.
Failure to comply may result in injury to personnel.
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.
(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, hoses and adapters
from fitting and hose.
(15) Connect hose to supply elbow fitting.
(1) Place drain pan under vehicle.
(2) Disconnect hydraulic supply hose at frame.
(3) Connect hydraulic tester between fitting and
hose with adapters and test hoses.
(4) Start engine (TM 9-2320-366-10-1).
(5) Position PTO switch to on (TM
9-2320-366-10-1).
(6) Increase engine rpm to 1250-1450 rpm (TM
9-2320-366-10-1).
(7) Observe minimum flow reading of 12 gpm (46
lpm). If step fails, hydraulic rotary pump is
faulty.
(8) Position MHC power switch to ON (TM
9-2320-366-10-1).
(9) Observe flow reading of 12-14 gpm (45-53
lpm) at about 3000 psi (20685 kPa).
(10) If there is no change in flow, manual override
valve is faulty.
(11) Position MHC power switch to OFF
(TM 9-2320-366-10-1).
