Husqvarna P 520D Operator's Manual page 129

a) Combi 132 and Combi 155 must be measured in
2 areas. Make sure that the rear edge is 6–9 mm
(1/4 - 3/8 in.) higher than the front edge.
b) Combi 132 X and Combi 155 X must be
measured in 4 areas. Make sure that the rear
edge is 6–9 mm (1/4 - 3/8 in.) higher than the
front edge.
To adjust the parallelism of the
cutting deck
1. Turn the track rod to extend it or make it shorter.
Extend the track rod to lift the rear edge of the cover.
Make the track rod shorter to lower the rear edge of
the cover.
2. Tighten the nuts on the track rod.
3. Do a check of the parallelism. Refer to
check of the parallelism of the cutting deck on page
128 .
740 - 002 -
4. Attach the front cover.
To replace the fuel filters
To replace the paper filter in the main filter
1. Open the engine cover to access the fuel filter.
2. Turn the filter housing ½ a turn counterclockwise and
remove the filter housing.
3. Remove the paper filter
4. Put a new paper filter in the filter housing.
5. Turn the filter housing ½ a turn clockwise to attach
the filter housing.
To clean and replace the air filter
1. Remove the engine cover.
2. Loosen the 2 knobs that hold the air filter cover.
3. Remove the the air filter cover.
To do a
CAUTION: Do not start the engine when the
air filter is not attached.
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