Troubleshooting; Possible Cause - Scheppach MFH5300-4BP Original Bedienungsanleitung

13. Troubleshooting

The table below contains a list of fault symptoms and explains what you can do to remedy the problem if your equip-
ment fails to work properly. If the problem still persists after working through the list, please contact your nearest ser-
vice workshop.
Fault

Possible cause

• Air filter is contaminated.
• Fuel filter is blocked.
• Lack of fuel supply.
• Fault in the fuel line.
• Starting device is faulty.
• Engine stalled.
Machine does not
start.
• Spark plug cap not attached.
• No spark.
• Engine faulty.
• Carburetor faulty
Machine starts but • Wrong carburetor setting (idle speed).
stops again.
• Cutting tool blocked.
Engine starts but the
• Internal fault (drive shaft, gearbox).
cutting tool stops.
• Clutch faulty.
Machine works with • Carburetor set up incorrectly.
interruptions (sputter- • Spark plug is sooty.
ing). • On/off switch faulty.
• Wrong fuel mix.
Smoke is generated.
• Carburetor set up incorrectly.
• Machine is overloaded.
Machine does not • Air filter is contaminated.
work at full power. • Carburetor set up incorrectly.
• Silencer is blocked.
• Blades are blunt or damaged.
Brush cutter does not
• Cut material is too high (machine
work at full power.
overload).
• Cutting line too short or damaged.
Grass trimmer does
• Machine is overloaded because the
not work at full power.
grass is too high.
Cutting line cannot be • Spool empty.
fed through.
• Chain tension too high.
Pole saw does not
• Chain blunt.
saw, it plucks or
• Chain attached incorrectly.
vibrates.
• Chain worn.
• No oil in the tank.
Saw chain becomes
• Oil line blocked.
hot or saw chain lubri-
• Chain tension too high.
cation does not work.
• Chain blunt.
 www.scheppach.com /  service@scheppach.com /  +(49)-08223-4002-99 /  +(49)-08223-4002-58
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.
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