Toro 30316, Operator'S Manual

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cm) measured between the washer and the
bushing, then back the front jam nuts off one
turn (Figure 47).
Important:
Do not overtighten the jam
nuts after the springs are fully compressed,
as this can damage the drive belt.
9. Tighten the rear jam nuts (Figure 47).
10. Install the mower cover onto the cutting unit,
then tighten the hand knob (Figure 46).
Mower Deck
Maintenance
Servicing the Cutting Blades
To ensure a superior quality of cut, keep the
blades sharp. For convenient sharpening and
replacement, you may want to keep extra blades
on hand.
A worn or damaged blade can break, and a
piece of the blade could be thrown into the
operator’s or bystander’s area, resulting in
serious personal injury or death.
• Inspect the blade periodically for wear
or damage.
• Replace a worn or damaged blade.
Before Inspecting or Servicing the
Blades
Park the machine on a level surface, disengage
the blade control bail and set the parking brake.
Turn the ignition key to off. Remove the key and
disconnect the spark plug wire(s) from the spark
plug(s).
Inspecting the Blades
Inspect the blades every 8 hours.
1. Inspect the cutting edges (Figure 48). If the
edges are not sharp or have nicks, remove and
sharpen the blades. Refer to Sharpening the
Blades.
Figure 48
1. Cutting Edge 3. Wear/slot Forming
2. Curved Area
2. Inspect the blades, especially the curved area
(Figure 48). If you notice any damage, wear, or
a slot forming in this area (item 3 in Figure 48),
immediately install a new blade.
Checking for Bent Blades
1. Rotate the blade until the ends face forward
and backward (Figure 49).
Figure 49
1. Blade 2. Measure from cutting edge
to level surface
2. Measure from a level surface to the cutting
edge, position C , of the blade (Figure 49).
Note this dimension.
3. Rotate the opposite ends of the blade forward.
4. Measure from a level surface to the cutting
edge of the blade at the same position as in
step 1. 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
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