20 –
English
Maintenance
4
Measure the electrode gap with a gapping tool. The gap
should be 0.75 mm/0.030”. Adjust as necessary by
bending the side electrode.
5
Reinsert the spark plug, turning by hand to avoid
damaging the threads.
6
Tighten the spark plug, once it touches the seating, with
the spark plug spanner. Tighten the spark plug so that the
washer is compressed. A used spark plug should be
turned 1/8 of a turn from the seated position. A new spark
plug should be turned a 1/4 turn from the seated position.
7
Replace the ignition cable shoe.
Fuses
The main fuse is placed in a detachable holder behind the
battery under the protective cover.
Type: Flat pin, 15 A.
Do not use any other type of fuse when replacing.
A blown fuse is indicated by a burnt connector. Pull the fuse
from the holder when replacing.
The fuse is there to protect the electrical system. If it blows
again shortly after replacement, it is due to a short circuit,
which must be fixed before the machine can be put into
operation again.
Check the safety system
The machine is equipped with a safety system that prevents
starting or driving under the following conditions.
The engine must only be possible to start when the following
conditions are met:
•
The cutting unit is in raised position.
•
The parking brake is applied.
•
The driver is seated in the driver's seat.
The engine must stop under any of the following conditions:
•
The cutting unit is lowered and the driver stands up.
•
The cutting unit is raised, the parking brake is not applied
and the driver stands up.
Check daily to ensure that the safety system works by
attempting to start the engine when one of the conditions
above is not met. Change the conditions and try again.
Checking the engine’s cooling air
intake
Clean the air intake grille in the engine cover behind the
driver’s seat.
Open the engine cover.
Check that the cooling intake is free from leaves, grass and
dirt.
Check the air duct, located on the inside of the engine cover,
ensure it is clean and does not rub against the cooling air
intake.
A blocked cooling intake will interfere with the cooling of the
engine, which can damage the engine.
Service position for the cutting unit
The cutting deck can be removed in order to facilitate cleaning
and servicing.
To remove the cutting deck proceed as follows:
1
Position the machine on flat ground.
IMPORTANT INFORMATION
Inadequately tightened spark plugs can cause overheating
and damage the engine. Tightening the spark plug too
much can damage the threads in the cylinder head.
IMPORTANT INFORMATION
Do not turn over the engine if the spark plug or ignition cable
has been removed.
!
WARNING! The cooling air intake rotates
when the engine is running. Mind your
fingers.
