LR3/Disco 3
The coil spring damper module comprises a damper, coil spring and top mount.
Damper
The damper assembly is a twin tube design with the conventional coil spring located on a welded spring seat on the
damper tube. The lower end of the damper is fitted with a bush and is attached to the lower control arm with a bolt and
nut.
The damper functions by restricting the flow of hydraulic fluid through internal galleries within the damper. The damper rod
moves axially within the damper, its movement limited by the flow of fluid through the galleries, providing damping of
undulations in the terrain. The damper rod is sealed at its exit point from the damper body to maintain the fluid within the
unit and to prevent the ingress of dirt and moisture. The seal also incorporates a wiper to keep the rod clean.
The damper rod is located through a central hole in the top mount. The rod is threaded at its outer end. A self-locking nut
secures the top mount to the damper rod.
A spring aid is fitted to the damper rod and prevents the top mount contacting the top of the damper during full
suspension compression and also assists the suspension tune.
Spring and Top Mount
The coil spring fitted differs with vehicle specification. Each spring is colour coded to identify its rating and fitment
requirements.
The coil spring is located in a spring seat which is an integral part of the damper body. The design of the spring seat
prevents the spring rotating. The opposite end of the coil spring is located in a spring isolator which is fitted in the top
mount. The spring isolator is made from rubber and prevents any noise produced during damper and spring
compression/extension from being transmitted to the vehicle body.
The top mount is fitted with a bush and rebound washer which are located between the top mount plate and the damper
rod, a self locking nut secures the damper rod to the top mount. The top mount attaches to a housing on the chassis with
3 integral studs and self-locking nuts.
The spring is fitted with spring spacers which are located between the spring isolator and the top mount. The spring
spacers control the length of the spring to maintain the correct trim height. The spring spacers are colour coded and are
supplied with a replacement spring.
ANTI-ROLL BAR
6
-
Bump washer
7
-
Spring aid
8
-
Dust tube
9
-
Bump cup
10
-
Coil spring
11
-
Damper
12
-
Damper rod
13
-
Self locking nut (3 off)
14
-
Bush
