TM 5-3805-262-34
3-15. AUXILIARY STEERING PUMP AND MOTOR MAINTENANCE (CONT)
a. Flowmeter Test (SHEET 5 OF 5).
(18) Record tester AMMETER reading.
(19) Open flowmeter PRESSURE VALVE completely and set ignition key switch to
OFF position.
(20) If auxiliary steering pump flow recorded in step (17) above is 6.4 gal-
lons per minute and tester AMMETER reading recorded in step (18) above is
525 amperes or less, auxiliary steering pump and motor are okay. If flow
is less than 6.4 gallons per minute or amperage is more than 525 amperes,
remove and replace auxiliary steering pump and motor (page 3-531).
(21) Disconnect load leads and ammeter clamp of starter and charging system
tester from battery posts and cable.
(22) Open access door in front of loader.
(23) Loosen hydraulic reservoir fill cap (1) to relieve air pressure in hy-
draulic reservoir. Tighten hydraulic reservoir fill cap (1) after air
pressure has been relieved.
(24) Disconnect flowmeter inlet hose (4) from hose (2) and flowmeter (7).
(25) Disconnect flowmeter outlet hose (6) from fitting (3) and flowmeter (7).
(26) Connect and tighten hose (2) fitting to fitting (3).
(27) Start engine and operate at idle speed for two minutes then increase
engine speed to full throttle for two minutes.
(28) Pull out fuel SHUT OFF control to stop engine but keep ignition key
switch in RUN position.
(29) Check that auxiliary steering pump and motor is operating; if it is not
operating, go to troubleshooting (page 2-117).
Before performing following step, warn personnel to stay away from sides
of loader between front and rear chassis. Failure to do so will cause
death or serious injury to those personnel due to chassis pivoting and
crushing them. If personnel are injured, obtain medical assistance
immediately.
(30) Wait one minute then turn steering wheel all the way to the right then
all the way to the left to bleed air from system.
(31) Set ignition key switch to OFF position.
(32) Check for oil leakage at auxiliary steering pump and motor. Tighten
fittings as necessary.
3-530
