Troubleshooting; Possible Cause - Scheppach MS149-46X Original Bedienungsanleitung

15. Troubleshooting

Troubleshooting
The table shows potential failures, their possible cause and solutions. However, if you are unable to solve the problem,
contact a professional to assist you.
m CAUTION!
Always switch off the engine and disconnect the ignition cable before starting any inspection or adjustment work.
m CAUTION!
If, after making an adjustment or repair to the engine, you let it run for a few minutes, remember that the exhaust pipe and
other parts will become hot. Thus, do not touch the parts that emanate heat, as these may burn you.
Important note in the case of repairs:
When returning the device for repair, please ensure for safety reasons that it is free of oil and petrol when it is sent to the
service centre.
Fault
Machine runs unsteadily
and vibrates heavily
Engine does not run
Engine runs unsteadily
Lawn turns yellow, uneven
mowing results
The discharge of grass
clippings is unclean

Possible cause

Screws are loose
Blade fasteners are loose
Blade is unbalanced
Engine brake lever not pressed
Throttle in wrong position
Spark plug is defective
Fuel tank is empty
Contaminated fuel
Cold environment
Engine defective
Air filter dirty
Spark plug dirty
Blade is blunt
Cutting height is too low
Cutting height is too low
Blade is worn
Catch basket is clogged
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Remedy
Check screws
Check blade fasteners
Replace blade
Press engine brake lever
Check setting
Replace spark plug
Refill with fuel
Empty fuel tank and fill with clean fuel
Push the primer button (if present)
Contact authorised customer service
Clean the air filter
Clean the spark plug
Sharpen the blade
Set correct height
Set height
Replace the blade
Empty the catch basket or remove the blockage
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