Husqvarna PG 530 Workshop Manual page 35

×4 13 mm
Mounting the planetary motor
Optimising sprocket pressure to chain ring
The motor attachment procedure as described here will ensure best possible power
transmission, while maintaining a minimum of wear and friction.
The process of tightening the satellite motor while running "loose", will ensure an
efficient adjustment of the sprockets into the chain ring.
TILT THE MACHINE
1. Use the foot step frame and the handle
bar to tilt down the machine.
2. The machine should rest on its wheels
and the foot step frame.
ALLOW FOR VERTICAL
MOVEMENT OF THE SPROCKET
3. The planetary motor plate bolts (a—d)
should only be hand tightened. The oval
bolt holes will then allow the sprocket to
slide down all the way into the chain
ring.
• The motor weight and the near vertic-
al position will cause steady pressure
on the chain ring.
• Plug the power cable to power mains.
START THE PLANETARY MOTOR
The rotation of the chain ring will cause a
typical grinding noise.
During the chain ring rotation cycle you
will be looking for the following signs of
pressure points:
Noise (peak)
• The grinding noise will have a noticeable
pitch as the pressure builds up (where the
chain ring radius is slightly lower).
Movement (upwards)
• There will be a slight movement of the
planetary motor as the sprocket will oscil-
late up and down.
Increased speed will accentuate the pressure
points.
SYNCHRONISE TIGHTENING WITH
MAXIMUM SPROCKET PRESSURE
Synchronise noise peak and maximum up-
ward position with each tightening of the
four bolts (a—d) in the order as illustrated to
the left:
1. Tighten bolt (a)
(a) will now act as a pivot point.
2. Tighten bolt (b)
3. Loosen bolt (a)
(b) will now act as a pivot point.
4. Tighten bolt (c)
5. Tighten bolt (a)
6. Tighten bolt (d)
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