User's Manual

12
SERVICE ASSISTANCE -
REPLACEMENT PARTS
To retain the quality of your mower, use genuine
HUSQVARNA replacement parts only. Contact your
local HUSQVARNA dealer for parts and service
assistance. For the correct part or information for your
particular mower, always mention model and serial
number. We recommend returning your mower to an
authorized HUSQVARNA dealer on a yearly basis for
inspection and addition of any new devices which
might upgrade the performance and safety of your
mower. For engine parts and service, look in the
yellow pages for the engine manufacturer's dealers
under the heading engines - gasoline.
WARNING
BEFORE PERFORMING SERVICE ON THE MOWER
TURN ENGINE OFF, CLOSE THE FUEL VALVE,
AND DISCONNECT THE BATTERY AND ALLOW
ENGINE TO COOL. DISCONNECT THE SPARK
PLUG WIRE. IF THE MOWER IS TO BE RAISED
OR TILTED, MAKE SURE TO SECURE THE
MOWER IN PLACE.
MODULE SYSTEM
The interlock modules function is to prevent the
engine from starting if the blade and/or traction
systems are engaged. It also causes engine shut-
down if the operator falls from, or attempts to leave
the operator position while the blades or traction
drives are engaged. After the engine starts, the
operator must hold either the left or right O.P. lever
down before engaging the blades or shifting the
transmission into gear. If neither O.P. lever is held the
engine will stop.
INTERLOCK SAFETY SYSTEM
Check the function of the safety electrical system on
a regular basis.
1. Engine must kill if blades are engaged without O.P.
levers held down.
2. Engine must kill if transmission is taken out of
neutral without holding down O.P. levers.
3. Engine must not start unless blades are off and
transmission is in the neutral position.
4. Do not operate the mower if the interlock safety
system allows operating or starting in any unsafe
condition.
NOTE
ALL MOWERS SHOULD BE TILTED WITH
THE CARBURETOR SIDE UP
CAUTION
DO NOT BYPASS THE INTERLOCK SWITCHES
THEY ARE FOR YOUR PROTECTION! CHECK
THE OPERATOR PRESENCE SYSTEM DAILY
ALONG WITH THE TRACTION DRIVE SWITCHES
AND BLADE SWITCH FOR PROPER OPERATION.
REPAIR IMMEDIATELY IF A
PROBLEM IN THE SYSTEM IS FOUND. DO NOT
OPERATE MOWER IN A DAMAGED CONDITION.
NEUTRAL LOCK THUMB LATCH
The point between neutral and drive on the slot of the
thumb latches should be checked every 50 hours. If
the point is rounded it should be replaced.
See figure 7 on page 10.
BLADES
If blades are in good condition, sharpen at an angle of
22 to 28 degrees about 2-1/2" in from the tips.
NOTE
AFTER SHARPENING, CHECK BLADES FOR
PROPER BALANCE, IF NEEDED CORRECT BAL-
ANCE TO PREVENT EXCESSIVE VIBRATION
CUTTING DECK SERVICE
If mower is cutting improperly, check the following:
1. Ground speed - too fast for proper cutting. Shift to a
lower gear.
2. Engine speed - too low for proper cutting. Increase
engine speed.
3. Cutting height - too low for ground/grass conditions.
Adjust to higher cut.
4. Blade spacers - not positioned properly on all blade
shafts. Visually inspect and replace or adjust as
necessary.
5. Front casters - spacers not in correct relationship
with rear axle. Adjust as necessary.
6. Belt slippage - causing bad cutting pattern or
uneven cut. Adjust belt tension
7. Tire pressure - uneven tire pressure can cause an
uneven cut from one side of the deck to the other.
Equalize tire pressure.
Service