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SECTION 5 - ADJUSTMENTS
& REPAIR
DO NOT attempt
any maintenance,
adjustments, orl
service with the engine or blades running. STOP I
engine. STOP blades. SET brake. REMOVE key. Allow
all
machinery
to
stop
before
leaving
operators l
position or approaching mower.
I
4.1
MOWER BELT REPLACEMENT
1.
Remove belt cover from mower.
NOTE: Belt routing diagram is located on the deck.
2.
Carefully roll belt out of groove and off left spindle
pulley.
3.
Remove old belt.
WARNING
Use CAUTION removing old belt. Belt is under spring
tension.
4.
Route new belt as shown in Figure 4.1, leaving belt
off of left spindle pulley.
5.
Remove all slack from belt and pull towards
left
pulley. At same time, rotate clockwise allowing belt
to roll onto the groove on the pulley.
4.2.2
Blade Sharpening.
1.
Inspect blades. If the blade has not been
damaged and it has not worn beyond the wear
limit it may be sharpened. See Figure 4.2.
2.
Remove
blade by removing the nut from
the blade bolt. Allow
the blade bolt, blade
washer, blade and four blade spacers to drop
down out of the spindle
housing. See Figure
4.3.
FOUR
¢
_
BLADE
J
SPACERS
"1 ®
_ADE
WASHER
BLADE
BOLT
FIGURE 4.1
4.2
MOWER
BLADE
SHARPENING
&
REPLACEMENT
4.2.1.
Blade Wear Limits
1.
Inspect
blades
before
each
use
for
signs
of
excessive wear or damage. See Figure 4.2.
DO NOT use a blade that has worn beyond the wear
limit. Blades are sharp and can cause severe injury.
Wear heavy gloves when handling or working around
blades.
NEW BLADE
LIMIT
(NOTCH STARTS)
7
_DANGEROUS
CONDITION!
DO NOT USE ON MOWER!
REPLACE WITH NEW BLADE.
FIGURE 4.2
11
FIGURE 4.3
3.
Remove
bolt, washer
and spacers
from
blade. Sharpen existing cutting edge only at an
angle of 22 to 28 degrees.
DO NOT sharpen
beyond existing cutting edge. See Figure 4.4.
22 ° -_'_
FIGURE 4.4
4.
Check
the
balance
of the
blade
after
sharpening.
Correct as required by removing
material from the end (not cutting edge) of the
blade.
5.
Install blade paying close attention to the
assembly sequence shown in Figure 4.3.
6.
Torque blade bolt and nut to 60 to 75 ft. Ibs.
4.2.3.
MOWER BLADE REPLACEMENT
1.
If blades are worn beyond the limit or have
been damaged,
they must be replaced.
See
Figure 4.2.
2.
Remove
blade
as instructed
in "Mower
Blade Sharpening" above.
3.
Install
new
blade
following
assembly
sequence carefully. See Figure 4.3.
4.
Torque blade bolt and nut to 60 to 75 ft. Ibs.
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