1996 Land Rover Defender Worshop Manual 300 Tdi

57
STEERING
Rotary valve misaligned
Demand for assistance (Valve misaligned)
CAUTION: To avoid excessive fluid
temperatures which could damage the oil
seals, the steering must not be held on full
lock for more than 30 seconds in one minute.
When the steering wheel and input shaft is turned,
steering resistance transmitted to the worm causes
the torsion bar to be twisted and the valve ports to be
misaligned for a right or left turn. The misalignment of
the valve ports directs all fluid pressure A to one side
of the piston only and allows displaced fluid B on the
other side.
Only when the steering wheel, and the demand for
assistance, is released, will the torsion bar return the
valve to neutral, allowing the fluid to circulate through
the reservoir where it is cooled.
When demanding maximum assistance, any
excessive fluid output from the pump due to high
pump speed, will circulate through the regulator valve
located in the pump unit, causing the temperature of
the fluid and the pump to rise rapidly.
In the unlikely event of mechanical failure of the
torsion bar, a coarse splined connection (7) between
the input shaft and worm, ensures steering control is
maintained sufficient to allow the vehicle to be
recovered.
4
DESCRIPTION AND OPERATION
Product Specification
CategoriesLand Rover, Land Rover Defender
Tags
Model Year1996
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- 450 pages
Document TypeWorkshop Manual
LanguageEnglish
Product NameDefender 300 Tdi
Product BrandLand Rover
Document File TypePDF
Publisherlandrover.com
Wikipedia's Pagehttp://en.wikipedia.org/wiki/Land_Rover
CopyrightAttribution Non-commercial
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