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If the blade is allowed to wear, a slot will form
between the sail and flat part of the blade
(Figure 15). Eventually a piece of the blade
may break off and be thrown from under the
housing, possibly resulting in serious injury to
yourself or bystanders.
• Inspect the blade periodically for wear or
damage.
• Always replace a worn or damaged blade.
Figure 15
1. Cutting edge
2. Sail
3. Inspect the cutting edges of all blades. Sharpen the
cutting edges if they are dull or nicked. Sharpen only
the top of the cutting edge and maintain the original
cutting angle to make sure of sharpness (Figure 16).
The blade will remain balanced if the same amount
of metal is removed from both cutting edges.
Figure 16
1. Sharpen at this angle only
4. To check the blade for being straight and parallel,
lay the blade on a level surface and check its ends.
The ends of the blade must be slightly lower than
the center, and the cutting edge must be lower than
the heel of the blade. This blade will produce good
quality of cut and require minimal power from the
engine. By contrast a blade that is higher at the ends
than the center, or if cutting edge is higher than
3. Wear/slot/crack
the heel, the blade is bent or warped and must be
replaced.
5. Install the blade, sail facing toward cutting deck, with
the anti-scalp cup and blade bolt. Tighten the blade
bolt to 85–110 ft-lb (115–149 N-m).
Checking the Blade Stopping
Time
Service Interval: Before each use or daily
The blades of the cutting deck should come to a
complete stop in approximately 5 seconds after you shut
down the cutting deck engagement switch.
Note: Make sure the decks are lowered onto a clean
section of turf or hard surface to avoid thrown dust and
debris.
To verify this stopping time, have a second person stand
back from the deck at least 20 feet (6 m) and watch the
blades on one of the cutting decks. Have the operator
shut the cutting decks down and record the time it
takes for the blades to come to a complete stop. If this
time is greater than 7 seconds, the braking valve needs
adjustment. Call your Toro Distributor for assistance
in making this adjustment.
Servicing the Front Roller
Inspect the front roller for wear, excess wobble, or
binding. Service or replace the roller or components if
any of these conditions exist.
Disassembling the Front Roller
1. Remove the roller mounting bolt (Figure 17).
2. Remove the roller assembly and roller position
spacer from the deck frame (Figure 17). Note the
position of the roller position spacer for reassembly.
3. Insert a punch through the end of the roller housing
and drive the opposite bearing out by alternating
taps to the opposite side of inner bearing race. There
should be a 0.060 inch (1.5 mm) lip of inner race
exposed.
13
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