Scheppach MTP750 Originalbetriebsanleitung Seite 49

16. Troubleshooting
Problem Cause
The engine does not
1.
start.
2.
3.
4.
5.
6.
7.
8.
Engine is difficult to
1.
start or loses power.
2.
3.
The motor runs
1.
unevenly.
2.
3.
Engine stalls at high
1.
speeds.
Motor is overheated.
1.
2.
Engine vibrates
1.
abnormally.
The clutch lever is not in the
correct position.
The tank is empty.
The air filter components are
contaminated.
The spark plug is loose.
Spark plug cable not properly
secured.
Wrong spark plug electrode
gap.
Spark plug defective.
Too much fuel in the
carburettor.
Ignition module defective.
Dirt, water or mould in the
fuel tank.
The air filter components are
contaminated.
The air filter components are
contaminated.
The clutch lever is blocked by
foreign objects.
The cooling fins and air
intakes under the engine are
blocked.
The electrode gap at the
spark plug is too small.
The cooling air flow is
obstructed.
Spark plug defective.
The blades have not been
assembled correctly. The
blades are not balanced.
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Solution
1. Set the clutch lever to the correct position.
2. Fill the tank.
3. Clean the air filter components.
4. Tighten the spark plug to 25-30 Nm.
5. Attach the cable to the spark plug.
6. Set the distance between the electrodes to 0.7
to 0.8 mm.
7. Insert a new spark plug in the correct position.
8. Remove the air filter and pull the starter cord
repeatedly until the carburettor is clean.
Reinsert the air filter.
1. Contact the customer service department.
2. Empty the tank, clean it and fill it with fresh
fuel.
3. Clean the air filter components.
1. Clean the air filter components.
2. Remove foreign bodies.
3. Remove foreign bodies from the cooling fins
and air inlets.
1. Adjust the electrode gap to 0.7 to 0.8 mm.
1. Remove all foreign objects from the frame, fan,
air inlets and cooling fins.
2. Fit an F7TC spark plug.
1. Check that all parts of the machine are
correctly assembled.
GB | 49