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14. TROUBLESHOOTING
CAUTION: always turn off the unit and disconnect the spark plug before carrying out the checks recommended
in the table, except for the cases where the unit needs to be running.
When all possible causes have been checked and the problem remains unsolved, please contact an
authorised service centre. When you identify a problem that is not included in the table, please contact
an authorised service centre.
PROBLEM
The motor cannot be
started or stops several
seconds after starting.
(Make sure that
the switch is in
position „I")
The motor starts but does
not properly increase its
speed or does not run
properly at high speeds.
The motor does not reach
full speed and/or emits
too much smoke.
The engine starts, works
and accelerates, but does
not maintain idling speed.
The guide bar and chain
heat up and smoke while
running
The motor starts but the
chain is not running.
CAUTION: when the motor
is running, never
touch the chain
CHAIN SAW
POSSIBLE CAUSES
1. The spark plug is
1. Check that the spark plug is fi ring. If the spark plug is not
not fi ring
2. The motor is
2. Take out the spark plug and pull the starting cord several
fl ooded
The carburettor must
Contact an authorised service centre to have the
be adjusted.
carburettor adjusted
1. Check the
1. Only use fresh petrol and oil suitable for two-stroke
petrol - oil mixture.
2. Dirty air fi lter.
2. Clean it; see instructions in chapter 11.
3. The carburettor
3. Contact an authorised service centre to have the
must be adjusted.
The carburettor must
Contact an authorised service centre to have the
be adjusted.
carburettor adjusted.
1. Empty chain oil
1. The oil tank must be fi lled up every time when the fuel
tank
2. Chain is overly
2. Tensioning the chain; see instructions in chapter 5.
tensioned
3. Allow it to run at maximum speed for 15-30 seconds.
3. Lubrication system
not working
properly
1. Chain brake
1. Disengage the chain brake; see chapter 7.
engaged
2. Tensioning the chain; see instructions in chapter 9.
2. Chain is overly
3. See instructions in chapter 5.
tensioned
4. See instructions in chapter 11. and 13.
3. Guide bar and
5. If necessary, replace it; contact an authorised service
chain installation
4. Damaged chain
and/or guide bar
5. Damaged clutch
and/or pinion
SOLUTION
fi ring, repeat the test with a new spark plug (WXL7T).
times. Then reinsert the cleaned spark plug and start
without using the choke.
engines.
carburettor adjusted
tank is fi lled.
Stop and check whether oil is dripping from the tip of the
guide bar. If there is oil there, the faulty operation may be
caused by a loose chain or damaged guide bar. If there
is no oil there, contact an authorised service centre
centre
27
Troubleshooting
USER'S MANUAL
EN
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