35
4.
Rotate the blades so the tips line up with one another.
The blade tips 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 shims (Part No.
3256-24) between the appropriate spindle housing and
the bottom of the cutting unit to align the blades.
Setting the Front-to-Rear Pitch
If one deck blade cuts lower than the other, correct as
follows.
Note:
Tire air pressure is critical in these procedures. Make
sure all tires have correct pressure.
1.
Disengage the PTO and set the parking brake.
2.
Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
3.
Check the tire pressure on both deck and traction unit.
4.
Position one blade front-to-rear (Fig. 41). Measure at
C
and
D
locations (Fig. 41) from a level surface to the
cutting edge of the blade tips (Fig. 42).
5.
The mower blade should be
1/4 inch (6 mm) lower in
front at
C
than in the rear at
D
.
Rotate blades and
repeat for other blades.
Front
C
D
m–1078
C
C
D
D
Figure 41
MEASURE FROM
CUTTING EDGE TO A
LEVEL SURFACE
m–2539
Figure 42
6.
To change the front-to-rear pitch, move an equal
number of thrust washers on both castor wheel forks.
Move the thrust washers from the top of the carrier
frame mounting tube to the bottom to raise the front of
the mower. Move the thrust washers from the bottom of
the mounting tube to the top to lower the front of the
mower (Fig. 43).
7.
Check the side-to-side leveling of the cutting unit.
m-4225
2
1
3
1
Figure 43
1. Thrust Washers (locate
as required)
2. Carrier Frame Mounting
Tube
3. Castor Wheel Fork
Checking the Deck
Side-to-Side Leveling
1.
Check the tire pressure on both deck and traction unit.
2.
Position the blades side-to-side (Fig. 44). Measure at
A
and
B
locations (Fig. 44) from a level surface to the
cutting edge of blade tips (Fig. 45).
3.
The difference between measurements
A
and
B
should
be no more than 1/4 inch (6 mm).
A
Front
B
m–1078
Figure 44
