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back of the blade plane is 13 mm (1/2 inch) higher than the
front.
1. Position the machine on a level surface on the shop
floor.
2. Set the cutting unit to the desired height of cut.
3. Rotate 1 blade so that it points straight forward.
4. Using a short ruler, measure from the floor to the front
tip of the blade. Rotate the blade tip to the rear and
measure from the floor to the tip of the blade.
5. Subtract the front dimension from the rear dimension
to calculate the blade pitch.
6. Loosen the jam nuts on the bottom of the height-of-cut
rods
(Figure
11).
1. Height-of-cut rod
7. Rotate the height-of-cut rods to raise or lower the rear
of the cutting unit and attain the correct cutting unit
pitch.
8. Tighten the jam nuts.
Adjusting the Skids
Mount the skids in the lower position when operating in
height of cuts greater than 64 mm (2-1/2 inches) and in the
higher position when operating in height of cuts lower than
64 mm (2-1/2 inches).
Adjust the skids by removing the flange bolt and nuts,
positioning them as desired, and installing the fasteners
(Figure
12).
Figure 11
2. Jam nut
1. Skid
Adjusting the Rollers
Note: When the cutting unit is being used in the 25 or 38
mm (1 or 1-1/2 inch) height-of-cut setting, the cutting unit
rollers must be repositioned in the top bracket holes.
1. Remove the screw and nut securing the roller shaft to
the deck bracket
1. Roller
2. Slide the shaft out of the lower bracket holes, align the
roller with the top holes, and install the shaft.
3. Install the screw and nut to secure the assemblies.
Correcting Cutting Unit
Mismatch
Due to differences in grass conditions and the counterbalance
setting of the traction unit, cut grass and check appearances
before starting formal cutting.
1. Set the cutting unit to the desired height of cut; refer to
Adjusting the Height of Cut (page
2. Check and adjust front and rear tractor tire pressure to
0.7 bar (10 psi).
3. Check and adjust all castor tire pressures to 3.4 bar
(50 psi).
14
Figure 12
(Figure
13).
Figure 13
2. Roller shaft
12).
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