Range Rover Classic
REAR SUSPENSION
1
FAULT DIAGNOSIS
SELF LEVELLING UNIT
Functional check
Before carrying out checks, verify vehicle is used
within specified maximum loading capability.
1. Check levelling unit for excessive oil leakage, if
so, change unit. Slight oil seepage is
permissible.
2. Remove excessive mud deposits from
underneath vehicle and any heavy items from
vehicle that are not original equipment.
3. Measure clearance between rear axle bump pad
and bump stop rubber at front outer corner on
both sides. Average clearance should be in
excess of 67mm. If less, remove rear springs
and check their free length against Road Spring
Data.
See GENERAL SPECIFICATION DATA,
Information, Road Spring Data
4. Replace any spring whose free length is more
than 20mm shorter than figure given. If after
replacing a spring the average bump clearance
is still less than 67mm, replace levelling unit.
5. With rear seat upright, load 450 kg into rear of
vehicle, distributing the load evenly. Check bump
stop clearance, with driving seat occupied.
6. Drive vehicle for 5km (3 miles) over undulating
roads or graded tracks. Stop vehicle without
disturbing loading. With driving seat occupied,
check bump stop clearance again.
7. If change in clearance is less than 20mm
levelling unit must be replaced.
See Repair,
Levelling Unit