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Mower Deck
Maintenance
Servicing the Blades
Service Interval: Before each use or daily
Note: Determine the left and right sides of the machine
from the normal operating position.
To ensure a superior quality of cut, keep the blades
sharp. For convenient sharpening and replacement, keep
extra blades.
DANGER
Worn or damaged blades 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 blades periodically for wear or
damage.
• Replace worn or damaged blades.
Inspecting the Blades
1. Remove the mower; refer to Removing the Mower.
2. Inspect the cutting edges (Figure 39). If the edges
are not sharp or have nicks, remove the blades and
sharpen them; refer to Sharpening the Blades.
Figure 39
1. Blade driver
2. Shear pin (2)
3. Blade
4. Bent edge
3. Inspect the blades, especially the bent edges
(Figure 39). If you notice any wear or damage in this
area, immediately install new blades.
4. If the shear pins are broken, replace them
immediately (Figure 39).
5. Spacer
6. Washer
7. Bolt
Important: If the shear pins are broken, the mower
belt may be damaged. Inspect the belt; refer to
Adjusting the Blade Drive Belt.
Removing the Blades
1. Remove the mower; refer to Removing the Mower.
2. Carefully tip the mower over.
3. Remove the bolts, washers, and blades (Figure 39).
Wedge a block of wood between each blade and the
mower to lock the blade when you are removing
each bolt.
Note: The right blade has a left-hand threaded bolt.
4. Inspect all parts; replace any that are worn or
damaged.
Sharpening the Blades
1. Use a file to sharpen the cutting edge at both ends
of each blade (Figure 40).
Note: Maintain the original angle. The blade
retains its balance if you remove the same amount of
material from both cutting edges.
1. Sharpen at original angle
2. Check the balance of each blade by putting it on a
blade balancer (Figure 41).
Note: If the blade stays in a horizontal position, the
blade is balanced and can be used. If the blade is not
balanced, file some metal off the back side of the
blade. Repeat this step until each blade is balanced.
1. Blade
Installing the Blades
1. Install the blades, washers, and blade bolts
(Figure 39).
30
Figure 40
Figure 41
2. Balancer
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