Inspecting And Sharpening Blade - Toro Groundsmaster 455-D Service Manual

Inspecting and Sharpening Blade

1. Raise cuffing unit to highest position, shut the engine
off and engage the parking brake. Engage locking
latches to prevent cutting unit from falling accidentally.
2. Examine cutting ends of the blade carefully, espe­
cially where the flat and curved parts of the blade meet.
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 wear
is noticed, replace the blade (see Cutting Blade Re­
moval and Installation).
3. Inspect 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. The blade will remain
balanced if same amount of metal is removed from both
cutting edges.
4. To check blade for being straight and parallel, lay
blade on a level surface and check its ends. Ends of
blade must be slightly lower than the center, and cutting
edge must be lower than the heel of the blade. This
blade will produce good quality of cut and require mini­
mal 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 blade sail facing toward cutting unit with anti-
scalp cup, lockwasher and blade bolt. Tighten blade bolt
to 85 - 110 ft-lb.
Repairs
Page 8 - 16 Rev. A
Figure 24
Figure 25
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Groundsmaster 455-D