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bedknife on the right side of the cutting unit. Putting
an identifying mark on this blade will make subsequent
adjustments easier. Insert the 0.05 mm (0.002 inch)
shim between the marked reel blade and the bedknife
at the point where the blade crosses the bedknife.
4. Turn the right bedbar adjuster clockwise until you feel
light pressure (i.e., drag) on the shim, then back off the
bedbar adjuster 2 clicks and remove the shim. (Since
adjusting 1 side of the cutting unit affects the other
side, the 2 clicks provide the clearance that you need
for when you adjust the other side.)
Note: If there is a large gap, draw both sides closer by
alternately tightening the right and left sides.
5. Slowly rotate the reel so that the same blade that you
checked on the right side is crossing the bedknife
approximately 25 mm (1 inch) in from the end of the
bedknife on the left side of the cutting unit.
6. Turn the left bedbar adjuster clockwise until you can
slide the shim through the reel to bedknife gap with
light drag.
7. Return to the right side and adjust as necessary to get
light drag on the shim between the same blade and
bedknife.
8. Repeat steps
6
and
through both gaps with slight drag, but 1 click in on
both sides prevents the shim from passing through on
both sides. The bedknife is now parallel to the reel.
Note: You should not need to perform this procedure
for daily adjustments, but after grinding or disassembly.
9. From this position (i.e., 1 click in and a shim not
passing through) turn the bedbar adjusters clockwise 2
clicks each.
Note: Each click turned moves the bedknife 0.018
(0.0007 inch). Do not overtighten the adjusting
screws.
10. Test the cutting performance by inserting a long strip of
cutting performance paper (Toro Part No. 125-5610)
between the reel and the bedknife, perpendicular to the
bedknife
(Figure
10). Slowly rotate the reel forward; it
should cut the paper.
Figure 10
7
until you can slide the shim
Note: If there is excessive reel drag, either backlap
or grind the cutting unit to achieve the sharp edges
needed for precision cutting.
Adjusting the Rear Roller
1. Adjust the rear roller brackets
height-of-cut range by positioning the required amount
of spacers below the side-plate mounting flange
11) per the HOC Chart.
1. Spacer
2. Roller bracket
2. Raise the rear of the cutting unit and place a block
under the bedknife.
3. Remove the 2 nuts securing each roller bracket and
spacer to each side-plate mounting flange.
4. Lower the roller and the screws from the side-plate
mounting flanges and spacers.
5. Place spacers onto screws on roller brackets.
6. Secure the roller bracket and spacers to the underside
of the side-plate mounting flanges with the nuts
previously removed.
7. Verify that the bedknife-to-reel contact is correct. Tip
the mower to expose the front and rear rollers and the
bedknife.
Note: The position of the rear roller to the reel
is controlled by the machining tolerances of the
assembled components and paralleling is not required.
A limited amount of adjustment is possible by setting
the cutting unit on a surface plate and loosening the
side-plate mounting bolts
tighten the bolts. Torque the bolts to 37 to 45 N∙m
(27 to 33 ft-lb).
1. Side-plate mounting bolts
8
(Figure
11) to the desired
Figure 11
3. Side-plate mounting flange
(Figure
12). Adjust and
g027270
Figure 12
(Figure
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