300Tdi Discovery
01
INTRODUCTION
6
INFORMATION
2. Raise front road wheels to enable an axle stand
to be installed under left hand axle tube.
3. Position an axle stand under right hand axle
tube, carefully lower jack until axle sits securely
on both axle stands, remove trolley jack.
4. Before commencing work on underside of
vehicle re-check security of vehicle on stands.
5. Reverse procedure when removing vehicle from
stands.
Raise rear of vehicle
1. Position cup of hydraulic arm under differential
casing.
2. Raise vehicle to enable axle stands to be
installed under left and right hand axle tubes.
3. Lower jack until axle sits securely on axle
stands, remove trolley jack.
4. Before commencing work on underside of
vehicle re-check security of vehicle on stands.
5. Reverse procedure when removing vehicle from
stands.
HYDRAULIC VEHICLE RAMP (FOUR POST)
Use only a ’drive on’ type ramp which supports vehicle
by its own road wheels. If a ’wheel-free’ condition is
required, use a ’drive on’ ramp incorporating a
’wheel-free’ system that supports under axle casings.
Alternatively, place vehicle on a firm, flat floor and
support on axle stands.
TWO POST VEHICLE RAMPS
The manufacturer of LAND ROVER VEHICLES
DOES NOT recommend using ’Two Post’ ramps
that employ four adjustable support arms. These
are NOT considered safe for Land Rover vehicles.
If vehicle is installed on a Two Post ramp
responsibility for safety of vehicle and personnel
performing service operations is in the hands of
the Service Provider.
DYNAMOMETER TESTING - NON ANTI-LOCK
BRAKE VEHICLES
Viscous coupling
The front and rear axles cannot be driven
independently due to the viscous coupling. This
eliminates the need for differential lock by
progressively locking the centre differential
automatically if slip occurs at any wheel.
WARNING: DO NOT attempt to drive
individual wheels with vehicle supported
on floor jacks or stands.
Four wheel dynamometers
Provided that front and rear dynamometer rollers are
rotating at identical speeds and that normal workshop
safety standards are applied, there is no speed
restriction during testing except any that may apply to
the tyres.
Two wheel dynamometers
IMPORTANT: Use a four wheel dynamometer for
brake testing if possible.
If brake testing on a single axle rig is necessary it
must be carried out with propeller shaft to rear axle
removed, AND neutral selected in BOTH main
gearbox and transfer gearbox. When checking brakes,
run engine at idle speed to maintain servo vacuum.
If checking engine performance, the transfer box must
be in high range and propeller shaft to stationary axle
must be removed.