Toro 30809 Groundsmaster 3500-G, Operator'S Manual

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meet ( Figure 66 ). Since sand and abrasive material can
wear away the metal that connects the flat and curved
parts of the blade, check the blade before using the
machine. If you notice wear (
Figure 66 ), replace the
blade; refer to Removing the Cutter Blade (page 46) .
DANGER
If the blade is allowed to wear, a slot will form
between the sail and flat part of the blade
(
Figure 66 ). 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 66
1. Cutting edge 3. Wear/slot/crack
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 ensure sharpness (
Figure 67 ). The
blade will remain balanced if the same amount of metal
is removed from both cutting edges.
Figure 67
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.
Note:
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 the heel, the blade is bent or
warped and must be replaced.
5. Install the blade, with sail facing away from the ground
when you are mowing, the anti-scalp cup, and blade
bolt.
6. Tighten the blade bolt to 115–149 N-m (85–110 ft-lb).
Checking the Blade Stopping Time
Service Interval: Before each use or daily
The blades of the cutting unit should come to a complete
stop in approximately 5 seconds after you shut down the
cutting unit engagement switch.
To verify this stopping time, have another person stand back
from the cutting units at least 6 m (20 feet) and watch a blade
on a cutting unit. Have the operator disengage the cutting
units 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 to be adjusted. Call your Toro Distributor
for assistance in making this adjustment.
Note:
Make sure that the cutting-units are lowered onto a
clean section of turf or clean hard surface to avoid thrown
dust and debris.
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 68 ).
2. 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 1.5 mm (0.060 inch) lip of inner race exposed.
G01 1356
1
2
3
4
Figure 68
1. Front roller 3. Bearing
2. Mounting bolt 4. Bearing spacer
47