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Mower Deck
Maintenance
Blade Safety
A worn or damaged blade can break, and a piece of
the blade could be thrown toward you or bystanders,
resulting in serious personal injury or death.
•
Inspect the blades periodically for wear or damage.
•
Use care when checking the blades. Wrap the
blades or wear gloves, and use caution when
servicing the blades. Only replace or sharpen the
blades; never straighten or weld them.
•
Always inspect the machine to ensure that the
blades and blade bolts are not worn or damaged.
Replace worn or damaged blades and bolts in sets
to preserve balance.
•
On multi-bladed machines, take care as rotating 1
blade can cause other blades to rotate.
Servicing the Cutting
Blades
To ensure a superior quality of cut, keep the blades
sharp. For convenient sharpening and replacement,
keep extra blades on hand.
Before Inspecting or Servicing the
Blades
1.
Park the machine on a level surface, disengage
the PTO, and engage the parking brake.
2.
Shut off the engine, remove the key, and
disconnect the spark-plug wires from the spark
plugs.
Inspecting the Blades
Service Interval: Before each use or daily
1.
Inspect the cutting edges.
2.
If the edges are not sharp or have nicks, remove
and sharpen the blade; refer to
Blades (page
51).
3.
Inspect the blades, especially in the curved area.
4.
If you notice any cracks, wear, or a slot forming
in this area, immediately install a new blade.
1. Cutting edge
2. Curved area
Checking for Bent Blades
A blade that is bent or damaged could
break apart and could critically injure you or
bystanders.
• Always replace a bent or damaged blade
• Do not file or create sharp notches in the
1.
2.
Sharpening the
1. Measure here from blade
3.
4.
50
Figure 74
WARNING
with a new blade.
edges or surfaces of the blade.
Rotate the blades until the ends face forward
and backward.
Measure from a level surface to the cutting
edge, position A, of the blades.
Figure 75
to hard surface
Rotate the opposite ends of the blades forward.
Measure from a level surface to the cutting edge
of the blades at the same position as in step
above.
g006530
3. Wear/slot forming
4. Crack
g000975
2. Position A
2
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