English – 41
Checking and adjusting wheel speed -
full lock
Adjusting the wheel speed - full lock is performed
only when changing the transmission.
1
3
4
2
1. Control stay
2. Flange nut
3. Screw
4. Washer
1. Dismantle the control stay from the chassis at its
front point.
2. Make sure the linkage is moving freely and that
the recoil spring (9) is pressing the adjustment
screw (8) against the panel. The screw should
be in contact with the panel throughout the
setting phase.
3. Have an assistant maneuver the machine and
start the engine, depress the throttle pedal to full
speed position and maintain a constant throttle.
4. 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).
That is to say, the rear wheels should rotate
faster than the front wheels.
Calculate the difference in speed by dividing
VRMU rpm with FMU rpm and the result should
be 1.35-1.38. For more information, refer to
section “3.1 Laser tachometer” on page 10.
9
8
Proceed as follows if the value is outside
tolerance:
1. Loosen the locknut (7).
2. Adjust the speed of the rear axle with the
adjustment screw (8).
- Clockwise reduces speed.
- Counterclockwise increases speed.
NB!
The setting is sensitive.
3. Tighten the locknut (7).
4. Recheck the wheel speed at full lock.
5. Ret the control stay (1) in the chassis. Make
sure the washer (4) is located between the
control stay and the chassis.
6. Check the wheel speed straight ahead and
adjust if necessary.
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
7. Slewing speed locknut
N=14
8. Slewing speed adjust-
ment screw N=14
9. Recoil spring
Propulsion
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