Table of Contents
Advertisement
synchronising Front and rear Wheel
Drives r 422 ts aWD
Front and rear wheel drives must be
adjusted so that the speed between the
front and rear wheels is correct when
cornering.
In order to avoid measurement error due
to rollback on the differential wheels, two
of the machine's wheel must make
contact with the ground.
Ensure the steering wheel position does not
change while work is in progress.
Measurements should be taken using
Husqvarna's optical revolution counter. Front
wheel speed should be 95-1 of the rear wheel
speed. Note that the variation between the
wheel speeds is intentionally greater on
delivery. The production value can be down to
0.92.
1.
Check that the synchronisation link is
fitted in the lower hole on the R 422 Ts
AWD.
2.
Set the steering wheel in the centre
position. Use a straight edge or the like.
3.
Jack up and block the machine with the
wheels on one side on the ground and
the wheels on the other side in the air.
Check that the steering wheel position
has not changed.
4.
Mark the free running wheels with reflex
tape or the like.
5.
Remember the risk of exhaust fumes.
Measure and note the speed of the rear
wheels at full speed. Now measure the
speed of the front wheels. This should be
between 0-5 % lower than the rear wheel
speed.
6.
Check that the steering wheel position has
not changed during the following test. Start
the engine and run warm at full speed until
the wheel speed has stabilized.Check with
tachometer.
7.
Stop the engine.
8.
Adjust the synchronisation of the wheel
speed using the adjuster rod. First loosen
the locking nuts.
•
A longer rod gives a higher speed on the
front wheels.
•
A shorter rod gives a higher speed on the
rear wheels.
English-52
repair instructions
time
action
Production
8h
Check
25h
Check
Every 25h
Check
Synchronisation link
Jacking up and wheel marking
Value
0.92-0.95
0.95-1
0.95-1
0.95-1
8009-693
8009-672
8042-127
Advertisement
Table of Contents
