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 TM 5-4210-224-14 & P
4-226. POWER STEERING SYSTEM MAINTENANCE. (Continued)
analyzer gauge must be open during this
(8) If the pump checks within specifications,
procedure.
leave the valve open and turn the steering
wheel into both corners. Record the
highest pressures and compare with the
maximum pump pressure recorded. If
this pressure cannot be attained in either
(or one) side of the gear, the gear is
leaking
internally
and
must
be
disassembled and repaired or replaced
(9) Shut the engine off, remove the testing
gauge, reconnect the pressure hose,
check the fluid level and replace the
hoses as necessary.
(10) If the problem still exists, the steering and
(4) Add power steering fluid (Appendix D,
front suspension must be thoroughly
Item 14) to the pump (1) if required.
examined.
(5) Run the engine at idle speed with the gate
b. Power Steering Analyzer.
valve open and record flow and pressure.
(1) Place a container under the steering gear
NOTE
(1) or pump (2) to catch the fluid when
If the flow is being 2 gpm (7.4
disconnecting or connecting the hoses.
L/min.), the pump appears to be in
need of replacement, but continue
(2) With the engine NOT running, disconnect
to test.
the pressure hose at the steering gear or
power steering pump.
Thread the
If the pressure is above 150 psi
analyzer female adapter into the pressure
(1035 kPa), check the hoses for
hose and the male adapter into the gear
restriction and check the steering
or pump. Connect the power steering
gear.
analyzer hoses to the adapter.
(3) If the analyzer has never been used, it will
(6) Partially close the gate valve to build 620
be necessary to bleed the power steering
psi (4278 kPa). Record the flow.
system to remove all the air.
The
4-316
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