Maintenance
Replace the spark plug. Make sure that the spark plug is fitted with a suppres-
sor.
Check and clean the spark arrestor mesh on the muffler (only applies to mufflers
without a catalytic converter).
To adjust the idle speed
1. Make sure that the air filter is clean and the air filter
cover is installed.
2. Adjust the idle speed with the idle adjustment screw.
The idle adjustment screw T is identified with a "T"
mark.
3. Turn the idle adjustment screw clockwise until the
cutting attachment starts to turn.
4. Turn the idle adjustment screw 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.
WARNING: If the cutting attachment does
not stop when you adjust the idle speed,
turn to your nearest servicing dealer. Do not
use the product until it is correctly adjusted
or repaired.
Technical data on page 22 for the
Note: Refer to
recommended idle speed.
Cooling system
The product has a cooling system to keep the operation
temperature as low as possible.
Clean the components of the cooling system with a
brush weekly or more frequently in rougher conditions. A
dirty or blocked cooling system makes the product too
hot which causes damage to the piston and cylinder.
The cooling system has the following components:
1. Air intake on the starter.
2. Fins on the flywheel.
3. Cooling fins on the cylinder.
4. Cylinder cover (directs cool air over the cylinder).
5. Muffler cover.
18
6. Muffler plate.
3
To clean the air filter
CAUTION: An air filter that is damaged must
always be replaced.
If you use an air filter for a long time, it cannot be fully
cleaned. Replace the air filter with a new one at regular
intervals.
1. Remove the air filter cover and remove the air filter.
2. Clean the air filter with compressed air.
3. Clean the inner surface of the filter cover. Use air or
a brush.
4. Make sure that the filter is dry.
Bevel gear
The bevel gear is filled to ¾ with grease at the factory.
Before you use the product, make sure that the grease
level has not changed. Use RedMax special grease if it
is necessary to fill up. Do not replace the grease in the
Daily
Weekly
Monthly
4
2
1
6
1289 - 002 -
X
X
5