English – 21
MAINTENANCE
Cooling system
To keep the working temperature as low as possible the
machine is equipped with a cooling system.
The cooling system consists of:
1 Air intake on the starter.
2 Air guide plate.
3 Fins on the flywheel.
4 Cooling fins on the cylinder.
5 Cylinder cover (directs cold air over the cylinder).
Clean the cooling system with a brush once a week, more
often in demanding conditions. A dirty or blocked cooling
system results in the machine overheating which causes
damage to the piston and cylinder.
Muffler
The muffler is designed to reduce the noise level and to direct
the exhaust gases away from the operator. The exhaust
gases are hot and can contain sparks, which may cause fire
if directed against dry and combustible material.
Never use a machine with a defective muffler.
General maintenance instructions
Below you will find some general maintenance instructions. If
you have more questions, contact your service agent.
Daily maintenance
1 Check that the components of the throttle control work
smoothly (throttle control and throttle trigger lock).
2 Clean the outside of the machine.
3 Check the tension of the drive belt.
4 Check the condition of the blades and the drive gear.
5 Check the condition of the blade guards.
6 Check the starter and starter cord and clean the outside
of the starter unit’s air intake.
7 Check that nuts and screws are tight.
8 Check that the stop switch works correctly.
9 Check the function of the restrictor.
Weekly maintenance
10 Check the condition of the air filter.
11 Check that the handles and vibration damping elements
are not damaged.
12 Clean the spark plug. Check that the electrode gap is
0.020 inch (0.5 mm).
13 Clean the fins on the flywheel. Check the starter and the
recoil spring.
14 Clean the cooling fins on the cylinder.
15 Check that the muffler is securely attached and not
damaged.
16 Check the operation of the carburettor.
Monthly maintenance
17 Check the clutch centre, drive gear and clutch spring for
wear.
18 Clean the outside of the carburetor.
19 Check fuel hose for cracks or other damage. Change if
necessary.
20 Clean the inside of the fuel tank.