Cutting Unit - Husqvarna Rider ProFlex 21 II Workshop Manual

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Cutting Unit

The entire Rider series is equipped with a front-mounted cutting unit in order to mow efficiently even in
confined areas.
The Rider ProFlex 21 II is delivered with the Combi 122 cutting unit. Older cutting unit types cannot be
attached unless the drive belt is changed.
The Combi unit functions as a BioClip unit when a BioClip plug is fitted, but can be set to rear ejection by
removing the BioClip plug.
Combi 122
The cutting unit can be raised or lowered in two different ways: with the mechanical lifting lever or with a
hydraulic cylinder. Both methods work by rotating a shaft.
When the shaft is rotated, the chain attached to a segment inside the end of the shaft will raise or lower the
equipment frame.
When lowering the unit, the two pulling rods, via the three-point link, will alter the belt adjuster so that the
drive belt is tensioned and the blades begin to rotate. When lifting the unit, the spring, which is attached to
the short pulling rod, will apply the blade brake to the belt pulley. The blades are braked and stop sooner.
When the unit is raised, the domed nut attached to the chain link bolt activates the safety system
microswitch.
See Adjusting the Lever Housing on page 56 for adjustment instructions.
DESIGN AND FUNCTION
8009-290
The unit's lifting device
www.mymowerparts.com
Removing the BioClip plug
8009-289
8009-301
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