Frelander 2. Manual — part 50
Front Suspension -
Coil Spring Suspension
Item
Specification
Front
Conventional coil spring with a twin tube damper and a high stress stabilizer bar
Road Spring Identification
Part Number
Specification
Isolator
LR 001131
Green/Yellow/Orange.
LR 001145
Torque Specifications
Description
Nm
lb-ft
Damper locknut*
80
59
Front subframe crossbrace:
M10*
45
33
M16*
140 + 240°
103 + 240°
Front subframe to body bolts*
140 + 240°
103 + 240°
Front ride height sensor
10
7
Halfshaft to hub bolt*
45 + 80°
33 + 80°
Lower control arm front bolt
140 + 45°
104 + 45°
Lower control arm rear nut and bolt
175
129
Lower control arm taper ball joint locknut*
100
74
Spring and damper assembly top mounting nuts
30
22
Stabilizer bar clamp bolts
175
129
Stabilizer bar link nuts*
60
44
W heel knuckle to damper clamp bolt
110
81
* New nuts/bolts must be fitted
Front Suspension - Front Suspension
Description and Operation
COMPONENT LOCATION
Item
Part Number
Description
1
-
Right Hand (RH) spring and damper assembly
2
-
Stabilizer bar link
3
-
Stabilizer bar
4
-
Left Hand (LH) spring and damper assembly
5
-
W heel knuckle
6
-
Hub and bearing assembly
7
-
Lower control arm
8
-
Subframe
OVERVIEW
The front suspension features long travel McPherson struts to optimize on and off road performance.
The suspension components are mounted on a subframe. The subframe is mounted on 4 bushes which have differing
compression rates to absorb lateral and longitudinal loading. This provides a rigid platform for front suspension cornering
loads, frontal impact absorption and also provides a towing point for off-road recovery.
SPRING AND DAMPER
Item
Part Number
Description
1
-
Boot
2
-
Bolts - Top mount (3 off)
3
-
Upper top mount plate
4
-
Lower top mount plate
5
-
Bump washer
6
-
Top mount bearing
7
-
Spring isolator
8
-
Spring
9
-
Spring Isolator
10
-
Damper body
11
-
Spring seat
12
-
Damper piston rod
13
-
Locknut
14
-
Spring aid
The spring and 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 body locates in the wheel knuckle which is clamped with a bolt.
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 assembly. 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 to prevent the top
mount contacting the top of the damper during full suspension compression and also assists the suspension tune. A boot
is fitted between the damper body and the top mount and protects the damper piston rod from damage.
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 and contains a spring isolator. The
design of the spring seat prevents the spring rotating. The spring has a linear rate compression and is inclined to counter
cornering forces. The opposite end of the coil spring is also located in a spring isolator which is fitted in the top mount
assembly. Both spring isolators are made from rubber and prevent any noise produced during damper and spring
compression/extension from being transmitted to the vehicle body.
The top mount is fitted with a top mount bearing which is located between the 2 top mount plates and the damper rod. A
self locking nut secures the damper rod to the top mount. The top mount bearing reduces steering resistance by
preventing the spring from 'winding' up when the steering in turned. The top mount attaches to a strengthened turret on
the chassis with 3 integral studs and self-locking nuts.
Two brackets are welded to the damper body. One bracket provides for the attachment of the stabilizer link. The second
bracket provides for the attachment of the brake hose and wheel speed sensor cable. This bracket also positively locates
the damper into the wheel knuckle and its location is critical to controlling the vehicle trim height.
LOWER CONTROL ARM
Item
Part Number
Description
1
-
Subframe
2
-
Ball bush
3
-
Bolt - front attachment
4
-
Bolt - rear attachment (2 off)
5
-
Nut - rear attachment (2 off)
6
-
Hydrabush
7
-
Locknut
8
-
Taper ball joint
The lower control arm assembly comprises the control arm, a rubber bush, a hydrabush and a ball joint.
The control arm is a pressed steel fabrication. The outer end is fitted with a non-serviceable taper ball joint which mates
with the wheel knuckle.
The 2 inner attachments locate in the subframe. The forward attachment is a non-serviceable rubber bush which is pressed
into the control arm. This joint locates in a slot in the subframe and is secured with a bolt which is screwed into a
threaded boss on the subframe.
The rearward attachment is a hydrabush which is located on a spigot on the control arm. The hydrabush has 2 welded
brackets which provides for its attachment to the subframe with 2 bolts and nuts. The hydrabush contains hydraulic fluid
and valves which allow controlled displacement of the bush to improve bump and handling characteristics and also reduce
road noise transmission. The bush becomes progressively stiffer as the forces on it increase, such as severe braking.
WHEEL KNUCKLE AND HUB ASSEMBLY
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст