Contact with a sharp blade can cause serious
injury.
Wear gloves or wrap sharp edges of the
blade with a rag.
,
,
Hold the blade end using a rag or
thickly-padded glove.
Remove the blade bolt, spring disk and blade
from the spindle shaft (Figure 79).
Sharpening the Blades
When sharpening blade, pieces of blade
could be thrown and cause serious injury.
Wear proper eye protection when sharpening
blade.
,
Use a file to sharpen the cutting edge at both
ends of the blade (Figure 77). Maintain the
original angle. The blade retains its balance if
the same amount of material is removed from
both cutting edges.
1.
Figure 77
Sharpen at original angle
G000276
A
1 2
I
G000277
1. Blade
Figure 78
2. Balancer
Installing the Blades
1. Install the blade onto the spindle shaft
(Figure 79).
,
Important: The curved part of the blade
must be pointing upward toward the inside
of the mower to ensure proper cutting.
Install the spring disk and blade bolt. The
spring disk cone must be installed toward the
bolt head (Figure 79). Torque the blade bolt to
85-110 ft-lb (115-150 N.m).
4
I. Sail Area of Blade
2. Blade
3. Spring Disk
\
2
Figure 79
4. Blade Bolt
5.
3
G000976
Cone Towards Bolt Head
,
Check the balance of the blade by putting it on
a blade balancer (Figure 78). 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 end of the sail area only
(Figure 79). Repeat this procedure until the
blade is balanced.
57
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