ATTACHMENTS
12D-13
3. Using a block of wood, block the blade as shown
in Figure 12D-13.
4. Using a box wrench or socket and breaker bar,
loosen the blade bolt.
5. Remove the blades, bolt, and saddle.
INSPECTING BLADES
Inspect the mower blades every 50 hours or whenever
the mower deck is removed from the machine. Inspect
the blades (Figure 12D-14) for the following:
• Bends (a)
• Grooves (b)
• Cracks (c)
Figure 12D-14. Mower Blade Damage
INSTALLING BLADES
1. Place blade or blades in blade saddle with the flat
blade on top and cutting surfaces up.
2. Position the blade bolt through the flat washer,
blade or blades, and blade saddle. Thread bolt
into cutter spindle.
3. Position a block of wood as shown in Figure 12D-
13.
4. Tighten blade bolt to 70 ft-lbs. (94.9 Nm).
5. Remove the block of wood and lower the cutter-
deck.
WARNING
Never attempt to inspect, repair or remove the blade
from the deck with the engine running. Serious per-
sonal injury can occur from contact with the blade
and from debris discharged from the mower deck.
WARNING
When handling blades, wear thickly padded gloves
to prevent injury.
WARNING
Use care when checking blades on the machine.
Avoid pinching hands and fingers between blade
end and housing.
WARNING
Always replace damaged blades. Do not attempt to
straighten, weld, or repair a bad blade.
WARNING
Bent, grooved, or cracked blades can cause a piece
of the blade to break away and be thrown from the
mower deck injuring bystanders or causing property
damage.
CAUTION
Bent blades have microscopic cracks that can grow
and break away. Bent blades create vibration and
stress on machinery.
CAUTION
Dust and sand can wear dangerous grooves in the
blade between the air vanes and flat portion. These
grooves grow rapidly, producing a crack and allow-
ing a piece of the vane to break off.
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