Maintenance
Replace the spark plug. Make sure that the spark plug is assembled with a
supressor.
Lubricate the drive shaft.
Make sure that the safety release on the harness is not damaged and operates
correctly.
Examine and clean the spark arrestor mesh on the muffler.
To adjust the idle speed
Your Husqvarna product is made to specifications that
decrease harmful emissions.
1. Make sure that the air filter is clean and that the air
filter cover is attached to the product.
2. Turn the idle speed screw (T) clockwise until the
cutting attachment starts to turn. (Fig. 77)
3. Turn the idle speed screw (T) counterclockwise until
the cutting attachment stops.
The idle speed is correct when the engine operates
smoothly in all positions. The idle speed must be below
the speed when the cutting attachment starts to turn.
Note:
Technical data on page 28 for the
Refer to
recommended idle speed.
WARNING:
does not stop when you adjust the idle
speed, speak to your servicing dealer. Do
not use the product until it is correctly
adjusted or repaired.
To adjust the start throttle speed
1. Apply idle speed.
2. Push the start throttle lock. Refer to
the throttle trigger lockout on page 16 .
3. If the start throttle speed is less than 4000 rpm, turn
the adjuster screw (A) until the cutting attachment
rotates. Turn the adjuster screw 1/2 turn more. (Fig.
78)
4. If the start throttle speed is too high, turn the
adjuster screw (A) counterclockwise until the cutting
attachment stops. Turn the adjuster screw 1/2 turn
more.
To do a check of the muffler
WARNING:
has a damaged muffler or a muffler that is in
bad condition.
1
At an interval of 6 months.
975 - 010 - 11.09.2023
1
If the cutting attachment
To do a check of
Do not use a product that
WARNING:
the spark arrester screen on the muffler is
missing or damaged.
WARNING:
arrester and spark arrester mounting
face may contain deposits of combustion
particles on the surfaces that may be
carcinogenic. To avoid skin contact and
inhalation of such particles when cleaning
and/or servicing the spark arrester, make
sure you always:
•
wear gloves;
•
clean and/or service in a well ventilated
area;
•
do not use pressurized air to clean the
spark arrester screen;
•
use a steel brush and brush away from
your body when cleaning the spark
arrester.
1. Examine the muffler for damages.
2. Make sure that the muffler is correctly attached to
the product. (Fig. 79)
3. If your product has a special spark arrester screen,
clean the spark arrester screen weekly.
4. Replace a damaged spark arrester screen. (Fig. 80)
Note:
Do not remove the muffler from the product.
CAUTION:
is blocked, the product becomes too hot
and this causes damage to the cylinder and
piston.
To clean the cooling system
CAUTION:
system can make the product too hot, which
can cause damage to the product.
Daily
Weekly
Monthly
Do not use the product if
A used muffler/spark
If the spark arrester screen
A dirty or blocked cooling
X
X
X
X
25