MAINTENANCE
INSPECT BLADE
WARNING: Before you inspect or remove the blade,
disconnect the wire to the spark plug. If the blade hits
,_an object, stop the engine. Check the unit for dam-
age. The blade has sharp edges. When you hold the
blade, use gloves or cloth material to protect your
hands.
Ifyou keep the blade sharp and inspect the blade for damage, the
blade will cut better and be more safe to operate. Frequently check
the blade for excessive wear, cracks, or other damage. Frequently
check the nut that holds the blade. Keep the nut tight. Ifthe blade
hitsan object,stop the engine. Disconnect thewire tothe sparkplug.
See ifthe blade is bent or damaged. Check the blade adapter for
damage. Before you operate the unit, replace damaged parts with
original equipment parts. See the authorized service center inyour
area. Every three years, have an authorized service person inspect
the blade or replace the old blade with an odginal equipment part.
HOW TO REMOVE AND INSTALL THE BLADE
1. Remove the mower housing. See the instructions on "How To
Remove The Mower Housing'.
2. Use a piece of wood to keep the blade from rotating.
3. Remove the nut that holds the blade (Figure 13).
Hi-Lift
Edge Up
Mandrel •
Blade
Blade Adapter
Belleville Washer
Nut Figure 13
4. Check the blade and the blade adapter according to the in-
structions for "Inspect Blade". Replace a badly worn or dam-
aged blade with an original equipment blade. See an
authorized service center in your area.
5. Clean thetop and bottom ofthe mower housing. Remove allthe
grass and debds.
6. Mount the blade and blade adapter on the mandrel
(Figure 13).
7. Mount the blade so that the hi- lift edges are up. Ifthe blade
isupside down, the blade will not cut correctly and can cause
an accident.
8,
Fasten the blade with the originalwashers and nut. Make sure
the outside rim of the Belleville washer is against the blade
(Figure 14).
A
F- 98891
WARNING: Always keep the nut tight that holds the
blade. A loose nut or blade can cause an accident.
21
9. Tighten the nut that holds the blade to a torque of 35 foot
pounds (47,5 N- m).
10. Install the mower housing. See =How To Install The Mower
Housing'.
BladeAdapter
Blade
/
BellevineWaSher I:_- _ Nut
(Outsiderimmustbe [_
againsttheblade.) t Figure14
HOW TO SHARPEN THE BLADE
WARNING: Vibration can be caused If the blade is
,_not correctly balanced or If the blade is damaged. A
blade that is damaged with cracks can break and
cause an accident.
Keep a sharp edge onthe blade. A blade that is notsharp willcause
the tips of the grass to become brown.
1. Sharpen the blade two times a year or every 25 hours.
2. Remove the blade according to the instructionsin"How To Re-
move And Install The Blade".
3. Clean the blade with a brush, soap and water. Check the
blade. Look for cracks, nicks, or other damage. Replace a
badlyworn or damaged blade with an odginal equipment blade.
See an authorized service center in your area.
4. Sharpen the blade with a file (Figure 15). Make sure you keep
the original bevel angle.
5. Make surethe blade isbalanced. Use a screwdriver and hold
the blade parallel to the ground (Figure 15). A blade that is
balanced willstay parallel to the ground. Ifthe blade is notbal-
anced, the heavy end will rotate toward the ground. Sharpen
the heavy end untilthe blade is balanced.
6. A new blade willcut better than a badly wom blade. Every three
years, have an authorized service person inspect the blade or
replace the old blade with an original equipment blade.
7. Assemble the blade according to the instructions"How To Re-
move And Install The Blade".
Screwdriver
File
I Blade is balanced I
I when parallel to the ground. I
Ground
Figure 15
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