Detection And Troubleshooting - Fieldmann FZR 5611 B User Manual

12. DETECTION AND TROUBLESHOOTING

Problem Probable cause
Choke valve damper in wrong position
The fuel tank is empty
The air fi lter is dirty
Loose spark plug
Unable to start the
The ignition cable is loose or disconnected
engine
from the spark plug
Incorrect gap between spark plug
electrodes
Faulty ignition module
Dirt, water or old fuel in the tank
Clogged air vent in fuel tank cap
The engine is
The air fi lter is dirty
diffi cult to start or
loses power
Dirt, water or old fuel in the tank
Clogged air vent in fuel tank cap
The air fi lter is dirty
Faulty spark plug
The engine runs
irregularly Incorrect gap between the electrodes
The air fi lter is dirty
The air fi lter is dirty
The engine is idling The air gaps in the engine cover are clogged Remove debis from the gaps
poorly
The cooling fi ns and air passages below the
engine fan are clogged
The engine stops at The gap between the spark plugs is too
high speed small
Limited airfl ow
The motor is
overheating
Unsuitable spark plug
The cutting unit is loose
The mower vibrates
The cutting unit is not balanced
violently
Bent crankshaft
PETROL LAWNMOWER
Detection and troubleshooting
Procedures
Move the choke lever to the correct position
Fill the fuel tank with fuel
Clean the air fi lter
Tighten the spark plug to 25-30 Nm
Install the ignition cable to the spark plug
Install a new spark plug with the correct
gap between the electrodes
Contact the repair shop
Drain the fuel and clean the tank. Fill the
tank with fresh clean fuel
Clean or replace the fuel fi ller cap
Clean the air fi lter
Drain the fuel and clean the tank. Fill the
tank with fresh clean fuel
Clean or replace the fuel fi ller cap
Clean the air fi lter
Install a new spark plug with the correct
gap between the electrodes
Set the gap between the electrodes to
0.7 - 0.8 mm
Clean the air fi lter
Clean the air fi lter
Remove debris from cooling fi ns and air
passages
Set a gap of 0.7 to 0.8 mm
Remove any debris from the gaps on the
engine cover, fan cover, and air passages
Install a new spark plug with the correct
gap between the electrodes
Tighten the mower blade
The mower blade must be balanced
Contact the repair shop
19 EN
USER'S MANUAL