Husqvarna 22" Multi-Cut Owner's Manual page 17

Rotary lawn mower 725 series briggs & stratton engine, all wheel drive, self-propelled
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LAWN
MOWER
Always observe safety rules when per-
forming any maintenance.
TIRES
• Keep tires free of gasoline, oil, or insect
control chemicals which can harm rub-
ber.
• Avoid stumps, stones, deep ruts, sharp
objects and other hazards that may
cause tire damage.
DRIVE WHEELS
Check wheels each time before you mow
to be sure they move freely.
The wheels not turning freely means trash,
grass cuttings, etc. are in the drive wheel
or dust cover area and must be cleaned to
free drive wheels.
If necessary to clean the drive wheels, be
sure to clean all wheels.
1. Remove hubcaps, Iocknuts and wash-
ers.
2.
Remove wheels from wheel adjusters.
3. Remove any trash or grass cuttings
from inside the dust cover, pinion and/
or drive wheel gear teeth.
4.
Put wheels back in place.
NOTE:
If after cleaning, the drive wheels
do not turn freely, contact a qualified
service center.
BLADE
CARE
For best results, blade must be kept
sharp.
Replace a bent or damaged blade.
A CAUTION:
Use only a replacement
blade approved by the manufacturer
of
your mower. Using a blade not approved
by the manufacturer
of your mower is haz-
ardous, could damage your mower and
void your warranty.
TO REMOVE BLADE
1. Disconnect
spark plug wire from spark
plug and place wire where it cannot
come in contact with plug.
2. Turn lawn mower on its side. Make
sure air filter and carburetor
are up.
3. Use a wood block between blade and
mower housing to prevent blade from
turning when removing blade bolt.
NOTE:
Protect your hands with gloves
and/or wrap blade with heavy cloth.
4.
Remove blade bolt by turning counter-
clockwise.
5. Remove blade and attaching hard-
ware (bolt, lock washer and hardened
washer).
6. Remove debris shield.
NOTE:
Remove the blade adapter and
check the key inside hub of blade adapter.
The key must be in good condition to work
properly. Replace adapter if damaged.
TO
1.
REPLACE
BLADE
Position the blade adapter on the en-
gine crankshaft.
Be sure key in adapter
and crankshaft
keyway are aligned;
and that the drive belt is inside the tab
of the belt retainer.
2.
Install debris shield.
3.
Position blade on the blade adapter.
IMPORTANT:
To ensure proper assembly,
center hole in blade must align with star
on blade adapter.
4. Be sure the trailing edge of blade (op-
posite sharp edge) is up toward the
engine.
5.
Install the blade bolt with the lock
washer and hardened washer into
blade adapter and crankshaft.
6. Use block of wood between blade and
lawn mower housing and tighten the
blade bolt, turning clockwise.
• The recommended
tightening torque is
35-40 ft. Ibs.
IMPORTANT:
Blade bolt is heat treated.
If bolt needs replacing,
replace only with
approved bolt shown in the Repair Parts
section of this manual.
nk-
adapter
\
shaft
keyway
Belt
retainer
J
shield
edge
washer
Blade bolt
TO SHARPEN
BLADE
NOTE: We do not recommend
sharpen-
ing blade - but if you do, be sure the blade
is balanced.
An unbalanced
blade will
cause eventual damage to lawn mower or
engine.
• The blade can be sharpened
with a file
or on a grinding wheel. Do not attempt
to sharpen while on the mower.
• To check blade balance, you will need a
5/8" diameter steel bolt, pin, or a cone
balancer.
(When using a cone balancer,
follow the instructions supplied with
balancer.)
NOTE:
Do not use a nail for balancing
blade. The lobes of the center hole may
appear to be centered, but are not.
17

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