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16. Troubleshooting
Troubleshooting
The table shows potential failures, their possible cause and solutions. However, if you are unable to solve the problem,
contact a professional to assist you.
m CAUTION!
Always switch off the engine and disconnect the ignition cable before starting any inspection or adjustment work.
m CAUTION!
If, after making an adjustment or repair to the engine, you let it run for a few minutes, remember that the exhaust pipe and
other parts will become hot. Thus, do not touch the parts that emanate heat, as these may burn you.
Fault
Unsteady running, strong
vibration of the device
Motor does not run
Combustion engine gets
very hot.
Device does not move.
Engine runs unsteadily
Lawn turns yellow, une-
ven mowing results
The discharge of grass
clippings is unclean
The mower does not start
with the electrical start
Motor output drops dur-
ing mowing
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cient
56 | GB
Possible cause
• Screws are loose
• Mowing blade attachment loose
• Mowing blade not balanced
• V-belt damaged
• Ejector chute blocked
• Incorrect start sequence
• Choke setting incorrect
• Engine brake lever not pressed
• Throttle in wrong position
• Spark plug is defective
• Fuel tank is empty
• Bowden cables too long
• poor fuel, storage without emptying the
petrol tank, incorrect petrol type
• spark plug fouled (carbon residue on the
electrodes), electrode distance too large
• The spark plug is wet from the petrol
(motor flooded).
• Engine defective
• Cooling fins are dirty.
• Engine oil level too low.
• V-belt worn out
• Transmission disengaged
• V-belt (transmission) unhooked
• V-belt (transmission) worn or damaged
• Missing parallel key between rear axle
and rear wheels
• Air filter dirty.
• Spark plug dirty
• Mowing blade is not sharp
• Cutting height is too low
• Cutting height is too low
• Mowing blade worn out
• Catch basket is clogged
• Chute blocked
• Grass too wet
• Driving speed too high
• Battery has discharged
• Fuse burnt out
• The driving speed in relation to the cut-
ting height is too high
• The brake is no longer set correctly
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Remedy
• Check screws
• Check mowing blade attachment
• Replace mowing blade by specialist work-
shop
• Replace V-belt
• Clean the ejector chute
• Check start process
• Check choke setting
• Press engine brake lever
• Check setting
• Replace spark plug
• Refill with fuel
• Adjust the Bowden cables using the
union nuts.
• Empty the fuel tank and carburettor. Fill
with fresh fuel.
• Clean the plug, check the heat value
of the plug, replace the spark plug as
required, set to 0.6 - 0.8 mm
• Dry the spark plug and insert it again.
• Contact authorised customer service
• Clean the cooling fins.
• Check fill level of engine oil and top up
engine oil.
• Replace V-belt
• Engaging the gear (transmission free-
wheel bow)
• Hook in the V-belt (transmission)
• Replace the V-belt (transmission)
• Fitting the parallel key
• Clean the air filter
• Clean the spark plug
• Sharpen the mowing blade
• Set the correct height
• Set height
• Replace the mowing blade
• Empty the catch basket or remove the blockage
• Clean the ejector chute
• Mow during dry weather
• Choose a lower gear
• Charge the battery
• Replace the fuse
• Reduce the driving speed and increase
the cutting height
• Contact the specialist merchant/custom-
er service
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