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Yanmar EF-494T User Manual

Yanmar EF-494T
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8 POWER STEERING 8 POWER STEERING
EF494T TM 06/2011 edition
175
8.2.2 Power steering relief pressure
NOTE:
A reduced relief pressure in the power steering
system can cause the steering to seem heavy.
HOW TO MEASURE THE RELIEF PRESSURE:
(1) Remove the right hose from the power
steering cylinder.
(2) Connect the hose to the hydraulic tester
(maximum pressure 250 kgf/cm
2
).
(3) Start the engine and raise the engine
speed to 2700 rpm.
(4) Turn the steering wheel clockwise until a
relief sound is heard. Read the tester.
NOTE:
Do not turn the wheel the wrong direction.
Otherwise, the cylinder will blow oil out of its port.
Specified pressure: 125-132 kgf/cm2
(12.2-12.9 MPa)
If the pressure is too high: Loosen the
adjusting screw (the oil temperature will
increase)
If the pressure is too low: Screw in the
adjusting screw.
IMPORTANT
Never remove the adjusting screw unless
absolutely necessary.
Note the anti-loosening punch.
If it becomes necessary to remove the
adjusting screw, note the number of turns it
was screwed in.

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Yanmar EF-494T Specifications

General IconGeneral
BrandYanmar
ModelEF-494T
CategoryTractor
LanguageEnglish

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