Husqvarna P524 Workshop Manual page 41

Propulsion
Checking and adjusting wheel speed -
straight ahead
1. Make sure the wheels are pointing straight
ahead and are parallel by measuring the
wheelbase on both sides of the machine. The
measurement should be the same on both sides
of the machine.
2. Have an assistant maneuver the machine and
start the engine, depress the throttle pedal to full
speed position and maintain a constant throttle.
NB!
Make sure the steering angle does not change
during the following test.
3. Measure and note the rpm of the front wheel at
full speed (FMU rpm). Then measure the speed
of the rear wheel at full throttle (VRMU rpm).
Calculate the difference in speed by dividing
VRMU rpm with FMU rpm and the result should
be 1.00-1.03. That is to say, the rear wheels
should rotate faster than the front wheels. For
more information, refer to section "3.1 Laser
tachometer" on page 10.
40 – English
1
3
4
5
1. Basic speed locknut
N=17
2. Basic speed adjuster nut
N=17
3. Joint bearing 2
4. Override spring
5. Basic speed adjustment
screw (black) N=20
6. Joint bearing 1
Proceed as follows if the value is outside
tolerance:
1. Loosen the locknut (1).
2. Adjust the speed of the rear axle by screwing on
the adjuster nut (2).
- Clockwise reduces speed.
- Counterclockwise increases speed.
NB!
The setting is sensitive.
3. Tighten the locknut (1).
4. Recheck the wheel speed.
2
8
7
6
9
7. Slewing speed locknut
N=14
8. Slewing speed adjust-
ment screw N=14
9. Recoil spring