MTD 769-11021, Original Operating Instructions

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Operating manual English
13
Troubleshooting
If you have any further questions, please contact your authorised dealer on site.
Error Cause Remedial action
Engine does not start. Ignition switch set to 0/STOP. Set switch to I/START.
Fuel tank empty. Fill fuel tank.
Intake pump not pressed down
far enough.
Slowly press intake pump all the way down
10 times.
Engine flooded. Implement the starting process with
the choke lever in the operating position.
Old or incorrectly mixed fuel. Empty the tank/fill with fresh fuel mixture.
Dirty spark plug. Replace or clean spark plug.
Engine does not run constantly
at no load.
Air filter blocked. Clean or replace air filter.
Old or incorrectly mixed fuel. Empty the tank/fill with fresh fuel mixture.
Carburettor incorrectly adjusted. Have the carburettor adjusted
by a specialist workshop.
Petrol filter dirty. Have petrol filter replaced by a specialist
workshop.
Engine does not accelerate. Old or incorrectly mixed fuel. Empty the tank/fill with fresh fuel mixture.
Carburettor incorrectly adjusted. Have the carburettor adjusted
by a specialist workshop.
Strong vibrations. Damaged cutting tools or drive
parts.
Switch off the unit immediately.
Have defective parts replaced
by a specialist workshop.
Cutting head does release line. Cutting head entangled
with grass.
Stop the engine and clean the cutting
attachment.
No line in the cutting head. Wind up new line.
Spool jammed. Replace spool.
Cutting head dirty. Clean spool and spool housing.
Line fused together. Pull apart, take out the fused part and wind
up the line again.
Line twisted when wound up. Pull apart and wind up the line again.
Not enough line released. Tap the bump head and pull out the line
until 10 cm of line is outside the cutting
attachment.