Toro 30140 Operator's Manual page 27

MEASURE FROM
CUTTING EDGE TO A
LEVEL SURFACE
Figure 28
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 27.
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.
Hold the blade bolt with a wrench. Remove the nut, blade
bolt, cone washer, blade, spacers and thin washer from the
spindle (Fig. 29).
4
1
m–2539
2
1. Blade
2. Blade bolt
3. Cone washer
Sharpening the Blades
1. Use a file to sharpen the cutting edge at both ends of the
blade (Fig. 30). Maintain the original angle. The blade
retains its balance if the same amount of material is
removed from both cutting edges.
1. Sharpen at original angle
2. Check the balance of the blade by putting it on a blade
balancer (Fig. 31). 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. 30). Repeat this procedure until the
blade is balanced.
1
1. Blade
Installing the Blades
1. Place the blade onto the bolt, over cone washer. Select
proper number of spacer(s) for height-of-cut and slide
bolt into spindle (Fig. 29).
27
3
Figure 29
4. Spacer
5. Thin washer
6. Nut
2
1
Figure 30
2. Sail
2
Figure 31
2. Balancer
6
5
4
m–3779
m–1854
m–1855