Toro Z Master Z147 Operator's Manual page 27

MEASURE FROM CUT-
TING EDGE TO A LEV-
EL SURFACE
Figure 26
2. Rotate the opposite ends of the blades forward.
3. Measure from a level surface to the cutting edge of the
blades at the same position as in step 1 above. The
difference between the dimensions obtained in steps 1
and 2 must not exceed 1/8 inch (3 mm). If this
dimension exceeds 1/8 inch (3 mm), the blade is bent
and must be replaced. Refer to Removing the Blades,
and Installing the Blades on page 28.
Warning
A blade that is bent or damaged could break
apart and could seriously injure or kill you or
bystanders.
Always replace bent or damaged blade with a
new blade.
Never file or create sharp notches in the edges
or surfaces of blade.
Removing the Blades
Blades must be replaced if a solid object is hit, if the blade
is out of balance or is bent. To ensure optimum
performance and continued safety conformance of the
machine, use genuine TORO replacement blades.
Replacement blades made by other manufacturers may
result in non-conformance with safety standards.
Warning
Contact with sharp blade can cause serious injury.
Wear gloves or wrap sharp edges of the blade
with a rag.
Hold the blade end using a rag or thickly-padded glove.
Remove the blade bolt, flat washer, split lockwasher and
blade from the spindle shaft (Fig. 27).
1
4
m–2539
1. Sail area of blade
2. Blade
3. Flat washer
Sharpening the Blades
When sharpening blade, pieces of blade could be
thrown and cause serious injury.
Wear proper eye protection when sharpening
blade.
1. Use a file to sharpen the cutting edge at both ends of
the blade (Fig. 28). Maintain the original angle. The
blade retains its balance if the same amount of
material is removed from both cutting edges.
2. Check the balance of the blade by putting it on a blade
balancer (Fig. 29). 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. 27). Repeat this procedure until
the blade is balanced.
1
1. Blade
27
3
5
Figure 27
4. Blade bolt
5. Split lockwasher
Warning
1
Figure 28
1. Sharpen at original angle
2
Figure 29
2. Balancer
2
m–4318
m–1854
m–1855