Maintenance

Checking the cutting unit’s parallelism

Check the cutting unit’s parallelism as follows:

1Check the air pressure in the tyres 60 kPa/0.6 bar/8.5 PSI.

2Place the machine on a flat surface.

3Put the lifting lever in the mowing position.

4Measure the distance between the ground and the front and rear edges of the cutting unit hood. The cutting unit should have a slight slant, with the rear edge 2-4 mm (1/ 8”) higher than the front edge.

Adjusting the parallelism of the cutting unit

1Remove the front hood and right-hand fender.

2Undo the nuts on the lift strut.

3Screw out (extend) the stay to raise the rear edge of the cover.

Screw in (shorten) the stay to lower the rear edge of the cover.

4Tighten the nuts after adjustment.

5On completion of the adjustment the unit’s parallelism should be re-checked.

6Fit the right-hand fender and the front hood.

Replacing the cutting unit belts

WARNING! Wear gloves to protect your

!hands when working with the blades.

There is a risk of crush injuries when working with the belt.

On these cutting units with collision-proof blades, the blades are driven by one V-belt. Do as follows to change the V-belt:

1Remove the cutting unit.

2Open the lock for the track rod bolt.

Remove the bolt so the track rod is released in one end.

3 Unscrew the bolt holding the unit frame bracket.

4Remove the lock and pass the unit frame out.

5Remove the two bolts on the unit frame.

36 – English

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Husqvarna PF 21 AWD, PR 17 AWD manual Checking the cutting unit’s parallelism, Adjusting the parallelism of the cutting unit

PR 17, PF 21, PR 17 AWD, PF 21 AWD specifications

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