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Figure 61
1. Blade
Installing the Blades
1. Install the blade onto the spindle shaft (Figure 59).
Important: The curved part of the blade must be
pointing upward toward the inside of the mower to
ensure proper cutting.
2. Install the spring disk and blade bolt (rotating it
clockwise).
Note: The spring disk cone must be installed toward
the bolt head (Figure 59).
3. Torque the blade bolt to 135-150 N-m (100-110 ft-lb).
Mower Deck Leveling
Check to ensure the mower deck is level any time you install
the mower or when you see an uneven cut on your lawn.
The mower deck must be checked for bent blades prior to
leveling; any bent blades must be removed and replaced.
Refer to the, Checking for Bent Blades (page 44), procedure
before continuing.
The mower deck must be leveled side-to-side first then the
front to rear slope can be adjusted.
Requirements:
•
The machine must be on a level surface.
•
All four tires must be properly inflated. Refer to
Checking the Tire Pressure (page 41).
Checking Side-to-Side Level
The mower blades must be level from side to side. Check the
side-to-side level any time you install the mower or when you
see an uneven cut on your lawn.
1. Park the machine on a level surface and disengage the
blade control switch.
2. Move the motion control levers outward to the neutral
lock position, stop the engine, remove the key, set the
parking brake and wait for all moving parts to stop
before leaving the operating position.
3. Carefully rotate the blades side to side.
4. Measure between the outside cutting edges and the flat
surface (Figure 62).
Note: If both measurements are not within 5 mm
(3/16 inch), an adjustment is required; continue to the
Leveling procedure.
2. Balancer
1. Blades side to side
2. Outside cutting edges
Checking the Front-to-Rear Blade Slope
Check the front-to-rear blade level any time you install the
mower. If the front of the mower is more than 7.9 mm
(5/16 inch) lower than the rear of the mower, adjust the blade
level using the following instructions:
1. Park the machine on a level surface and disengage the
blade control switch.
2. Move the motion control levers outward to the neutral
position, engage the parking brake, stop the engine,
remove the key, and wait for all moving parts to stop
before leaving the operating position.
3. Carefully rotate the blades so they are facing front to
rear (Figure 63).
4. Measure from the tip of the front blade to the flat
surface and the tip of the rear blade to the flat surface
(Figure 63).
Note: If the front blade tip is not 1.6-7.9 mm
(1/16-5/16 inch) lower than the rear blade tip, continue
to the Leveling the Mower Deck procedure.
46
Figure 62
3. Measure from the tip of the
blade to the flat surface
here
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