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ASSEMBLY
FX17/FX21 02/11 Assembly Section 3-5
© 2011 Alamo Group Inc.
ASSEMBLY
SETTING CUTTING HEIGHT
Roller Height Adjustment
The mower’s cutting height is set by positioning the
roller assembly for each mower section. Each
section must be set at the same height to ensure an
even cut across the entire width of the mower.
1. The mower’s cutting height is set by
positioning the roller assembly for each
mower section. Each section must be set at
the same height to ensure an even cut across
the entire width of the mower.
2. Place the tractor and mower on a level
surface and completely lower the mower to
the ground.
3. Shut down the tractor, place the transmission
in park, and set the parking brake before
dismounting.
4. One section at a time, place lifting device
(scissors jack or hydraulic jack) under center
of cutter housing.
5. Remove hex nuts, washers and carriage bolts
from bracket at each end of roller. Make
certain that roller bracket is free to move once
the fasteners are removed. A stuck roller
could drop unexpectedly and cause injury.
6. Use lifting device to reposition cutter housing
to desired cutting height. Align bracket holes
with cutter housing, then reinstall hardware.
7. Lower cutter housing to the ground and
remove lifting device.
8. Set cutting height according to procedures
above for remaining two cutter sections.
Make sure that all three rollers are set at the
same height to ensure a even cut across the
entire width of the mower.
Note: When using flat cut blades, adjust front of all
mowing heads to be 3-1/4 degrees lower than rear.
When using 45º blades adjust mowing heads level.