Troubleshooting - Scheppach MFH3300-4P Traduction Du Manuel D'origine

13. Troubleshooting

The table below contains a list of fault symptoms and explains what you can do to remedy the problem if your equipment
fails to work properly. If the problem still persists after working through the list, please contact your nearest service work-
shop.
Important hint in case of sending the equipment to a service station:
Due to security reasons please see to it that the equipment is sent back free of oil and gas!
Fault Possible cause
Machine does not start. • Air filter is contaminated.
• Fuel filter is blocked.
• Lack of fuel supply.
• Fault in the fuel line.
• Starting device is faulty.
• Engine stalled.
• Spark plug cap not attached.
• No spark.
• Engine faulty.
• Carburetor faulty
Machine starts but • Wrong carburetor setting (idle speed).
stops again.
Engine starts but the • Cutting tool blocked.
cutting tool stops. • Internal fault (drive shaft, gearbox).
• Clutch faulty.
Machine works • Carburetor set up incorrectly.
with interruptions • Spark plug is sooty.
(sputtering). • On/off switch faulty.
Smoke is generated. • Wrong fuel mix.
• Carburetor set up incorrectly.
Machine does not work • Machine is overloaded.
at full power. • Air filter is contaminated.
• Carburetor set up incorrectly.
• Silencer is blocked.
Brush cutter does not • Blades are blunt or damaged.
work at full power. • Cut material is too high (machine overload).
Grass trimmer does not • Cutting line too short or damaged.
work at full power. • Machine is overloaded because the grass is
too high.
Cutting line cannot be • Spool empty.
fed through.
Pole saw does not saw, • Chain tension too high.
it plucks or vibrates. • Chain blunt.
• Chain attached incorrectly.
• Chain worn.
Saw chain becomes hot • No oil in the tank.
or saw chain lubrication • Oil line blocked.
does not work. • Chain tension too high.
• Chain blunt.
36 GB
Remedy
• Clean/replace the air filter.
• Clean or renew the fuel filter.
• Re-fuel.
• Check the fuel line for kinks or damage.
• Contact the service centre.
• Remove the spark plug, clean and dry it; then
pull the starter rope several times; re-fix the spark
plug.
• Check the correct position of the spark plug cap.
• Clean the spark plug or replace it, if applicable.
• Check the ignition cable for damage.
• Contact the service centre.
• Contact the service centre.
• Contact the service centre.
• Turn off engine and remove object.
• Contact the service centre.
• Contact the service centre.
• Contact the service centre.
• Clean the spark plug or replace it.
• Contact the service centre.
• Use two-stroke mixture at a ratio of 40:1.
• Contact the service centre.
• Do not use force during mowing/trimming.
• Clean the air filter or replace it.
• Contact the service centre.
• Check the exhaust.
• Sharpen or replace blades.
• Cut the grass in phases.
• Feed more cutting line through or replace it.
• Cut the grass in phases.
• Replace spool.
• Check and reset chain tension.
• Have the chain sharpened or replace it.
• Re-attach the chain.
• Replace the chain.
• Refill oil.
• Clean the oil line.
• Set the chain tension.
• Have the chain sharpened or replace it.