Troubleshooting - Scheppach RM420 Originalbetriebsanleitung

children. Risk of suffocation! Keep parts of packages
away from children and dispose them as soon as pos-
sible.
The unit and its accessories are made of various
types of material, such as metal and plastic. Defec-
tive components must be disposed of as special
waste. Ask your dealer or your local council.

12. Troubleshooting

Troubleshooting
The table shows potential failures, their possible cause and removal options. However, if you are unable to remove
the problem, contact a professional to assist you.
m CAUTION!
Always switch off the engine and pull 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 and
other parts will get hot. Thus, do not touch parts that emanate heat, as these may burn you.
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
Loud while running,
machine vibrates
heavily
Engine does not start
Engine runs unsteadily
Uneven mowing results
Unsatisfactory bagging
of the grass
Service information
Please note that the following parts of this product are subject to normal or natural wear and that the following parts are therefore also
required for use as consumables.
Wear parts*
* Not necessarily included in the scope of delivery!
 www.scheppach.com  service@scheppach.com  +(49)-08223-4002-99  +(49)-08223-4002-58
Possible cause
- Screws are loose
- Blade fasteners are loose
- Blade is unbalanced
- Brake lever not pressed
- Speed lever in wrong position
- Spark plug is defective
- Fuel tank is empty
- Contaminated fuel
- Cold environment
- Engine faulty
- Air filter is soiled
- Spark plug is soiled
- Blade is blunt
- Cutting height is too low
- Cutting height is too low
- Blade is worn
- Basket is clogged
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Remedy
- Check screws
- Check blade fasteners
- Replace blade
- Press brake lever
- Check setting
- Replace spark plug
- Refill with fuel
- Empty fuel tank and fill with clean fuel
- Push the primer button
- Contact authorised customer service
- Clean the air filter
- Clean the spark plug
- Sharpen the blade
- Set correct height
- Set correct height
- Replace the blade
- Empty the basket
spark plug (Art.-Nr: 3904601090), belt, filter (Art.-Nr:
5911249045), knife (Art.-Nr: 7911200620)