Correcting Cutting Unit Mismatch; Matching The Height-Of-Cut; Checking The Front-To-Rear Pitch - Toro Z355 Z-Master Operator's Manual

Sharpening the Blades
1. Use a file to sharpen the cutting edge at both ends of
the blade (Fig. 47). Maintain the original angle. The
blade retains its balance if the same amount of
material is removed from both cutting edges.
1
Figure 47
1. Sharpen at original angle
2. Check the balance of the blade by putting it on a blade
balancer (Fig. 48). If the blade stays in a horizontal
position, the blade is balanced and can be used. If the
blade is not balanced, file some metal off the end of
the sail area only (Fig. 48). Repeat this procedure until
the blade is balanced.
1
Figure 48
1. Blade
Correcting Cutting Unit
Mismatch
If one deck blade cuts lower than the other, correct as
follows:
1. Stop the engine, remove the key and disconnect the
spark plug wire(s) from the spark plug(s).
2. Adjust the tire pressure in all tires to specifications and
check that the blades and spindle shafts are not bent.
Refer to Checking for Bent Blades on page 31.
3. Set the height-of-cut to the 6 cm (2-1/2 inch) position.
Refer to Adjusting the Height-Of-Cut in the Operation
section. Make sure there is no excessive wear on push
arm pivot points.
4. Refer to Matching Height–of–Cut, Checking Front to
Rear Pitch and Checking Side to Side Leveling on
pages 33, 33 and 34.
Matching the Height–of–Cut
The height of cut needs to be checked and correct before
the front to rear pitch and side to side leveling is
performed.
m–1854
2
m–1855
2. Balancer
33
1. Check the tire pressure on both deck and traction unit.
2. Set the height-of-cut to the 2-1/2 inch position
following the height-of-cut decal.
3. With the machine on level surface, position one blade
front-to-rear (Fig. 49). Measure at A from level surface
to the cutting edge of the blade tips (Fig. 50).
4. The measurement should be 2-1/2 inch. Rotate blades
and repeat for opposite blade.
Front
A
Figure 49
MEASURE FROM CUT-
TING EDGE TO A LEV-
EL SURFACE
Figure 50
5. If it does not measure correctly remove or add washers
to the height–of–cut posts. Match the hole in the post
with the decal and the measured height–of–cut
(Fig. 34).
Note: Make sure you add or remove washers from all four
height–of–cut posts.
Checking the Front-to-Rear
Pitch
The height of cut needs to be checked and correct before
the front to rear pitch leveling is performed.
1. Check the tire pressure on both deck and traction unit.
2. Position one blade front-to-rear (Fig. 51). Measure at
C and D locations (Fig. 51) from a level surface to the
cutting edge of the blade tips (Fig. 52).
3. The mower blade should be 1/4–3/8 inch lower in
front C than in the rear D. Rotate blades and repeat
for opposite blade. If it is not correct proceed to
Change the Front–to–Rear Pitch.
A
M–4852
M–4852