g010341
Figure 58
1.
Sail Area of Blade
3.
Curved washer
2.
Blade
4.
Blade Bolt
Sharpening the Blades
WARNING
When sharpening blade, pieces of blade could
be thrown and cause serious injury.
Wear proper eye protection when sharpening
blade.
1.
Use a file to sharpen the cutting edge at both
ends of the blade (
).
Note:
Maintain the original angle.
Note:
The blade retains its balance if the same
amount of material is removed from both cutting
edges.
g000276
Figure 59
1.
Sharpen at original angle
2.
Check the balance of the blade by putting it on a
blade balancer (
).
•
If the blade stays in a horizontal position, the
blade is balanced and can be used.
•
If the blade is not balanced, perform the
following steps:
A.
File some metal off the end of the sail
area only (
).
B.
Repeat this procedure until the blade is
balanced.
g000277
Figure 60
1.
Blade
2.
Balancer
Installing the Blades
1.
Install the blade onto the spindle shaft (
Important:
The curved part of the blade
must point upward toward the inside of the
mower to ensure proper cutting.
2.
Install the spring disk and blade bolt (
).
Note:
The spring disk cone must be installed
toward the bolt head
3.
Thread the bolt into the shaft clockwise and
torque the 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
Checking for Bent Blades (page
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 40)
.
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.
46