Maintenance
13
Correcting Cutting Unit
Mismatch
If one cutter blade cuts lower than the other, correct
as follows:
1.
Stop the engine, set the parking brake, remove
the key and disconnect the spark plug wire(s)
from the spark plug(s).
2.
Adjust the pressure in all tires to specifications
and check that the blades are not bent. Refer to
Checking for Bent Blades on page 11.
3.
Set the height-of-cut to the 2-1/2” position.
Refer to Adjusting the Height-Of-Cut in the
Operation section.
4.
Rotate the blades so the tips line up with one
another. The tips of both blades must be within
1/8” (3 mm) of each other. If the blade tips are
not within 1/8” (3 mm) of each other, add shim
washers (Part No. 3256-24) between the
appropriate spindle housing and the bottom of
the cutting unit to align the blades.
Setting the Side-to-Side Leveling
1.
Check the tire pressure.
2.
Position the blades side-to-side (Fig. 16).
Measure at “A” and “B” locations (Fig. 16) from
a level surface to the cutting edge of blades
(Fig. 17).
3.
The difference between measurements “A” and
“B” should be no more than 1/4” (6 mm).
A
Front
B
m–1078
Figure 16
m–2550
Figure 17
4.
To change the side-to-side leveling, loosen upper
flange nut(s) and adjust lower locknut at the
front of the mower (Fig. 21).
m–2750
2
1
1
2
Figure 18
1.
Locknut
2.
Flange Nut
5.
Check the front-to-rear pitch of the cutting unit.
