Husqvarna LOYTH20F42T Lawn Mower User Manual


 
17
Blade
Blade Bolt
(Special)
Center Hole
Star
Mandrel
Assembly
BLADE REMOVAL
1. Raise mower to highest position to al-
low access to blades.
NOTE: Protect your hands with gloves
and/or wrap blade with heavy cloth.
2. Remove blade bolt by turning coun ter -
clock wise.
3. Install new blade with stamped
"GRASS SIDE" facing the ground.
IMPORTANT: To ensure proper as sem bly,
center hole in blade must align with star
on mandrel assembly.
4. Install and tighten blade bolt securely
(45-55 Ft. Lbs. torque).
IMPORTANT: Special blade bolt is heat
treated.
TRACTOR
Always observe safety rules when per-
form ing any main te nance.
BRAKE OPERATION
If tractor requires more than fi ve (5) feet to
stop at highest speed in high est gear on a
level, dry concrete or paved surface, then
brake must be serviced. (See “TO CHECK
BRAKE” in the Ser vice and Ad just ments
section of this manual).
TIRES
• Maintain proper air pressure in all tires
(See PSI on tires).
• Keep tires free of gasoline, oil, or insect
control chemi cals which can harm rubber.
• Avoid stumps, stones, deep ruts, sharp
objects and other hazards that may
cause tire damage.
NOTE: To seal tire punctures and pre vent
at tires due to slow leaks, tire sealant
may be purchased from your local parts
dealer. Tire sealant also pre vents tire dry
rot and corrosion.
OPERATOR PRESENCE SYS TEM AND
REVERSE OPERATION SYSTEM (ROS)
Be sure operator presence and reverse
operation sys tems are work ing properly. If
your tractor does not function as de-
scribed, repair the problem immediately.
• The engine should not start unless the
brake pedal is fully de pressed, and the
attachment clutch con trol is in the dis en -
gaged position.
CHECK OPERATOR PRESENCE
SYSTEM
• When the engine is running, any at-
tempt by the op er a tor to leave the seat
without fi rst setting the parking brake
should shut off the engine.
• When the engine is running and the
at tach ment clutch is engaged, any at-
tempt by the operator to leave the seat
should shut off the engine.
• The attachment clutch should never op-
erate unless the operator is in the seat.
CHECK REVERSE OPERATION (ROS)
SYSTEM
• When the engine is running with the
ignition switch in the engine "ON" posi-
tion and the at tach ment clutch engaged,
any attempt by the operator to drive in
reverse should shut off the engine.
• When the engine is running with the
ignition switch in the ROS "ON" position
and the at tach ment clutch engaged,
any attempt by the operator to drive in
reverse should NOT shut off the engine.
BLADE CARE
For best results mower blades must be
sharp. Re place worn, bent or damaged
blades.
CAUTION: Use only a replacement
blade approved by the manufacturer of
your tractor. Using a blade not approved
by the manufacturer of your tractor is
hazardous, could damage your tractor and
void your warranty.
0
2
8
2
8
ROS "ON" Position Engine "ON" Position
(Normal Operating)
BATTERY
Your tractor has a battery charging sys tem
which is suf cient for normal use. How-
ev er, periodic charging of the bat tery with
an automotive charger will ex tend its life.
• Keep battery and terminals clean.
• Keep battery bolts tight.
• Keep small vent holes open.
• Recharge at 6-10 amperes for 1 hour.
NOTE: The original equipment battery on
your tractor is maintenance free. Do not
attempt to open or remove caps or covers.
Adding or checking level of elec tro lyte is
not necessary.