Husqvarna 96133003101 Operator's Manual page 11

LAWN MOWER
Always observe safety rules when performing main te nance.
TIRES
• Keep tires free of gasoline, oil, or insect control chem i-
cals which can harm rubber.
• Avoid stumps, stones, deep ruts, sharp objects and
other hazards that may cause tire damage.
BLADE CARE
For best results, mower blade must be kept sharp. Re place
a bent or dam aged blade.
CAUTION:
blade approved by the manufacturer of
your mower. Using a blade not approved
by the manufacturer of your mower is
hazardous, could damage your mower
and void your warranty.
TO REMOVE BLADE (See Fig. 12)
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 hous ing
to prevent blade from turning when re mov ing 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 hardware (bolt, lock
wash er and hardened wash er).
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 REPLACE BLADE (See Fig. 12)
1. Position the blade adapter on the engine crank shaft.
Be sure key in adapter and crankshaft keyway are
aligned.
2. Position blade on the blade adapter.
IMPORTANT: TO ENSURE PROPER AS SEM BLY, CENTER HOLE
IN BLADE MUST ALIGN WITH STAR ON BLADE ADAPTER.
BLADE ADAPTER KEY
BLADE
LOCK
WASHER
BLADE
HARDENED
BOLT WASHER
TRAILING EDGE
MAINTENANCE
Use only a replacement
CRANKSHAFT
KEY WAY
RETAINER
CRANKSHAFT
FIG. 12
3. Be sure the trailing edge of blade (opposite sharp
edge) is up toward the engine.
4. Install the blade bolt with the lock washer and hardened
washer into blade adapter and crankshaft.
5. 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. lbs.
(47–54 Nm).
IMPORTANT: BLADE BOLT IS HEAT TREATED. IF BOLT NEEDS
REPLACING, REPLACE ONLY WITH APPROVED BOLT.
TO SHARPEN BLADE (See Fig. 13)
NOTE: We do not recommend sharp en ing blade - but if
you do, be sure the blade is balanced. An un bal anced
blade will cause eventual damage to lawn mower or engine.
• The blade can be sharp ened 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 bal anc er, follow the in struc tions supplied with
bal anc er.)
NOTE: Do not use a nail for balancing blade. The lobes
of the center hole may appear to be centered, but are not.
• Slide blade on to an unthreaded portion of the steel
bolt or pin and hold the bolt or pin parallel with the
ground. If blade is bal anced, it should remain in a
horizontal po si tion. If either end of the blade moves
downward, sharpen the heavy end until the blade is
balanced.
CENTER HOLE
5/8" BOLT OR PIN
GRASS CATCHER
• The grass catcher may be hosed with water, but must
be dry when used.
• Check your grass catcher often for damage or de te-
ri o ra tion. Through normal use it will wear. If catcher
needs replacing, replace only with ap proved replace-
ment catcher. Give the mower model number when
ordering.
ENGINE
Maintenance, re pair, or re place ment of the emission con trol
de vic es and sys tems, which are be ing done at the cus tom-
ers expense, may be performed by any non-road engine
repair es tab lish ment or individual. Warranty repairs must
BELT
be performed by an authorized engine man u fac tur er's
service outlet.
11
BLADE
FIG. 13