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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.
WARNING
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 PTO 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
Service Interval: Before each use or daily
1. Inspect the cutting edges (Figure 53). If the edges
are not sharp or have nicks, remove and sharpen the
blades. Refer to Sharpening the Blades.
Figure 53
1. Cutting Edge
2. Curved Area
2. Inspect the blades, especially the curved area
(Figure 53). If you notice any damage, wear, or a slot
forming in this area (Figure 53), immediately install a
new blade.
3. Wear/slot Forming
4. Crack
Checking for Bent Blades
1. Rotate the blades until the ends face forward and
backward (Figure 54).
1. Measure from cutting edge to a level surface
2. Measure from a level surface to the cutting edge,
position A, of the blades (Figure 55). Note this
dimension.
3. Rotate the opposite ends of the blades forward.
4. Measure from a level surface to the cutting edge of
the blades 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 inch (3 mm), the blade is
bent and must be replaced. Refer to Removing the
Blades and Installing the Blades.
WARNING
A blade that is bent or damaged could break
apart and could seriously injure or kill you or
bystanders.
• 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
Replace the blades if you hit a solid object or if the
blades are out of balance or bent. To ensure optimum
performance and continued safety conformance of
41
Figure 54
Figure 55
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