Cutting Unit - Husqvarna DT22 Operator's Manual

Cutting unit

Checking the drive belt
1. Allow the engine to cool.
2. Remove the spark plug cable.
3. Remove the belt guard (see illustration) on the
left side of the machine.
4. Check that the belt is running in the proper
track; the pulleys should guide the belt in a
straight line.
5. Check that the belt and pulleys are not oily. If
they are, first try to clean them with spirits. If
they are heavily coated, take the machine to
an authorized service workshop to fix the oil
leakage and replace the belt.
6. Check the belt for cracks, heat damage or worn
edges. If these symptoms appear, replace the
drive belt; see "Replacing the drive belt".
7. Check that guide and tensioning equipment for
the belt is not loose and is properly set; see
"Replacing the drive belt".
8. Refit the belt guard.
Replacing the drive belt
Replace the drive belt as follows:
1. Allow the engine to cool.
2. Remove the spark plug cable.
3. Remove the belt guard.
4. Remove the old belt.
5. Check for wear on the pulleys and replace as
necessary.
6. Check the pulley setting against the rotor
pulley and adjust as necessary. The belt
should run in the track.
7. Check the tensioning pulley. The bearings
should rotate freely and evenly. The rocking
lever on the tensioning pulley should be free
with a lateral play of not more than 6.5 mm
(0.25") (see illustration). Replace as necessary.
8. Fit a new belt by first pulling it over the lower
pulley and then the engine pulley. Check that
the tensioning pulley and belt guides end up
outside the belt loop.
9. Adjust the belt guides as necessary and refit
the belt guard.
MAINTENANCE
8011-027
BELT COVER
DT06
DT07
8011-245
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