Removing The Blades - Toro ProLine 30197 Operator's Manual

Maintenance
POTENTIAL HAZARD
A blade that is bent or damaged could
break apart and pieces could be thrown at
bystanders or at you as you use the mower.
WHAT CAN HAPPEN
Pieces of blade that may be thrown could
seriously injure or kill you or bystanders.
HOW TO AVOID THE HAZARD
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. 33).
4
1
2
Figure 33
1. Blade
2. Blade bolt
3. Cone washer
4. Spacer
32
3
m–3779
5. Tube
6. Thin washer
7. Nut
Sharpening the Blades
1. Use a file to sharpen the cutting edge at both
ends of the blade (Fig. 34). 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. 35). 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. 34).
Repeat this procedure until the blade is balanced.
1
1. Blade
7
6 Installing the Blades
4
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.
33).
5
IMPORTANT: The curved part of the blade
must be pointing upward toward the inside of
the mower to ensure proper cutting.
2. Install remaining spacer(s) and secure with thin
washer and nut (Fig. 33).
3. Torque the blade bolt to 75–80 ft. lb.
(101–108 N m).
2
1
Figure 34
2. Sail
2
Figure 35
2. Balancer
m–1854
m–1855