Husqvarna Rider ProFlex 18 Workshop Manual page 60

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6. PF18, PF 21 Check that the dome nut for
the screw for the chain segment is in
position for maximum effect on the
microswitch. Adjust as needed with the
adjustment screws (1+2) on the drive
disc. Repeat step 5 if needed.
7. PF18, PF 21 Adjust the microswitch so
that it is definitely activated by the dome
nut, but allows extra motion (it must not
bottom out).
8. PF18, PF 21 Check that the spring
places the blade brake against the belt
pulley.
9. PF18, PF 21 Raise the cutting unit
completely by pulling the mechanical
lifting lever.
10. PF18, PF 21 Adjust with the adjustment
screw (3) against the cylindrical pin so
that a distance of 38 ±2 mm is
maintained between the frame structure
and the outermost corner of the belt
adjuster arm, see illustration. This
measurement applies to new belts and
as a starting point for used belts.
11. PF18, PF 21 Lower the cutting unit
completely to the ground.
12. PF18, PF 21 Check that the connecting
rod has play along the oblong groove in
the belt adjuster. Adjust with the
adjustment screw (3) against the
cylindrical pin as needed (used belt).
13. PF18, PF 21 Check that all locking nuts
are tight.
14. PF18, PF 21 Replace the plastic cover.
REPAIR INSTRUCTIONS
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Microswitch
Blade brake
Basic measurements, belt adjuster
Connecting rod in the belt adjuster
8009-381
8009-383
8009-401
8009-384
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English-