31 - 2
Link Arms - Removal and Replacement
Removal
1
Fix the assembly on a locally made strip/rebuild bench
as shown.
2
Using two suitable open ended spanners at
L
and
M
react against each other until one ball joint unscrews.
3
Unscrew the ball joint
L
until an open ended spanner
can be fitted on the rod
N
. Screw the ball joint against
the spanner to secure the spanner and to prevent
damage to the rod.
4
By reacting against the spanner at
N
and
M
undo the
other ball joint.
Note 1:
Flats at ‘E’ are:
2 Wheel drive machines - 32 mm A/F x 4 mm wide.
4 Wheel drive machines - 40 mm A/F x 4 mm wide.
Note 2:
The piston rod operates at full length, any damage
to the surface will cause fluid leaks. DO NOT attempt to grip
the rod diameter with pipe grips etc.
5
Repeat the procedure for the remaining link arm
assembly.
6
Where applicable remove the target disc
G
.
Note 3:
If the inner or outer ball joints need to be renewed,
then a replacement link arm assembly must be fitted.
Replacement
Replacement is the reverse of removal but note the
following:
1
Remember to fit the target disc
G
(where applicable).
2
Use JCB Threadlocker & Sealer on the trackrod link
arms.
3
If the link arms have been renewed, the wheel
alignment must be checked as follows:
a
Set the wheels to the straight ahead position and
measure dimensions
X
and
Y
(at the outer edge of
the wheel hub). Alignment is correct if the
difference between
X
and
Y
is a maximum of 1
mm.
b
To adjust the wheel alignment undo the lock nuts
(
H
or
K
as applicable). Turn the threaded adjusters
J
equally to obtain the correct alignment. Tighten
the lock nuts (
H
or
K
as applicable).
Note 4:
AWS machines shown at
A
. 2 wheel steer machines
shown at
B
.
4
Check the proximity switch setting (where applicable).
Refer to
Service Procedures, Proximity Switch -
Setting
.
Section H
9803/3280
Section H
31 - 2
Issue 1
Power Track Rod
Torque Settings
2WS /4WD
C
180 Nm (132 lbf ft)
H
45/50 Nm (33/36 lbf ft)
E
240/260 Nm (177/184 lbf ft)
2WS/4WD
C
140/150 Nm (103/110 lbf ft)
K
300 Nm (221 lbf ft)
E
240/260 Nm (177/184 lbf ft)
AWS/4WD
C
270/280 Nm (199/206 lbf ft)
H
70/85 Nm (51/62 lbf ft)
E
450 Nm (331 lbf ft)
AWS/4WD
C
270/280 Nm (199/206 lbf ft)
K
390/410 Nm (287/302 lbf ft)
E
450 Nm (331 lbf ft)
2WS/2WD
C
N/A
K
240/260 Nm (177/184 lbf ft)
E
240/260 Nm (177/184 lbf ft)