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10• BREAKDOWNS AND REMEDIES
ANORMAL OPERATION
PROBABLE CAUSE
REMEDY
The engine does not start
Fuel tank empty
Fill with petrol
Choke not engaged and engine cold
Actuate the choke
The spark plug lead is not connected
Connect the spark plug lead
Fuel pipe blocked
Have the fuel pipe cleaned by a specialist workshop
Air has penetrated the engine because the carburettor
is loose
Tighten the fixing screws
The engine does not start ; there is a smell of petrol
The engine is receiving too much fuel
Place the throttle lever at maximum, choke off
Air filter clogged
Clean the air filter
Engine runs erratically, misses
The engine is running with the choke on
Deactuate the choke
Ignition cable loose
Allow the engine to cool and carefully connect the
spark plug lead
Air filter clogged
Clean the air filter
Fuel tank cap breather blocked
Replace the fuel tank cap
Fuel pipe blocked
Have the fuel pipe cleaned by a specialist workshop
Carburettor wrongly adjusted
Have the carburettor adjusted by a specialist workshop
The engine gets too hot
See the problem «Engine gets too hot»
Engine misses at high running speeds
Spark plug gap wrongly set
Have the gap set by a specialist workshop
Carburettor wrongly adjusted
Have the carburettor adjusted by a specialist workshop
The engine gets too hot
Too little engine oil
Top up with engine oil
Air cooling system restricted
Have the fan grille and cooling fins cleaned by a spe
-
cialist workshop
Air filter clogged
Clean the air filter
Carburettor wrongly adjusted
Have the carburettor adjusted by a specialist workshop
The engine often stalls on idle speed
Choke not engaged and engine cold
Actuate the choke
Spark plug gap wrongly set
Have the gap set by a specialist workshop
Air filter clogged
Clean the air filter
The engine has too little power
Air filter clogged
Clean the air filter
Compression too low
Go to a specialist workshop
The engine does not stop
The engine stop action is out of adjustment
See the engine user manual. Go to a specialist workshop
Permanent squeaking when the tool is running
Control lever not completely down
Lower the blade engagement lever completely
Control cable wrongly adjusted
Correct the control lever adjustment
Tool does not rotate or stops when loaded
Control lever not completely down
Lower the blade engagement lever completely
Control cable wrongly adjusted
Correct the control lever adjustment
Defective trapezoidal belt
Have the trapezoidal belt replaced by a specialist work-
shop
Poor result
The blades are set too high
The work depth is set so that the blades only go 3
to 5 millimetres into the soil without damaging the
grass roots
The blades are damaged, blunt
Replace the blades
The soil is churned up
The blades are set too low
The work depth is set so that the blades only go 3
to 5 millimetres into the soil without damaging the
grass roots
A lot of weed remains in the scarifier
The blades are set too low
The work depth is set so that the blades only go 3
to 5 millimetres into the soil without damaging the
grass roots
