Mountfield MJ 66 Series, Руководство оператора, Страница: 27 / 28

EN - 16
WARNING! Always replace damaged or
bent cutting means; never attempt to repair
them! ALWAYS USE ORIGINAL CUTTING
MEANS!
Only cutting means bearing the code indicated
in the table on page ii must be used on this ma -
chine.
Given product evolution, the above mentioned
cutting means may be replaced in time with oth -
ers having similar interchangeable and operat -
ing safety features.
7. TROUBLESHOOTING
PROBLEM LIKELY CAUSE SOLUTION
1. With the key on «START» the
starter motor does not run.
Electronic circuit board blocked
due to:
– flat battery
– fuse blown
– bad earthing to the engine or the
frame
– earth connections of the
microswitches disconnected
– badly earthed starter motor
– starting conditions have not
been met
Turn the ignition key to «STOP»
position and look for the cause of
the problem:
– recharge the battery (see 6.2.3)
– replace the fuse (10 A) (see 6.3.4)
– check connections of black earth
leads
– check connections
– check earth connections
– check that the conditions
allowing the start are met
(see 5.2.a)
2. With the key on «START» the
starter motor runs but the engine
does not start
– faulty fuel supply
– faulty ignition
– check the level in the tank
(see 5.3.3)
– check the fuel filter
– check that spark plug cap is
securely fitted
– check that the electrodes are
clean and have the correct gap
3. The engine stops Electronic circuit board blocked
due to:
– earth connections of the
microswitches disconnected
– flat battery
– badly connected battery (poor
contact)
– engine badly earthed
Turn the ignition key to «STOP»
position and look for the cause of
the problem:
– check connections
– recharge the battery (see 6.2.3)
– check connections (see 3.5)
– check engine earth connection
4. Starting is difficult or the engine
runs erratically
– fault in carburetion – clean or replace the air filter
– flush out the float chamber
– empty the fuel tank and refill with
fresh fuel
– check and replace the fuel filter if
necessary
5. Weak engine performance
during cutting
– forward speed too high in relation
to cutting height
– reduce the forward speed and/or
raise the cutting height (see 4.4)
6. The engine switches off when
the cutting device is engaged
– the movement of the lever used
to engage the cutting means is
too brusque
– you are not ready to engage the
cutting means
– do it more slowly
– check that the safety
requirements are met (see 5.2.b)