16
ROTARY HAMMER
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MAINTENANCE AND INSPECTION
1) Inspecting the tool
When using dull tool bits this can cause motor malfunction and degraded
efficiency. Always replace dull bits with new ones without delay when
abrasion is noted.
2) Inspecting the mounting screws
Regularly inspect all mounting screws and ensure that they are
properly tightened. Should any of the screws be loose, retighten them
immediately. Failure to do so could result in serious injury.
3) Maintenance of the motor
The motor unit winding is the very “heart” of the power tool. Exercise
due care to ensure the winding does not become damaged and/or wet
with oil or water.
4) Inspecting the carbon brushes
The motor employs carbon brushes that are consumable parts; since an
excessively worn carbon brush could result in motor trouble, replace the
carbon brush. Wear limiter (6) No of carbon brush (7).
6
44
7
4 mm
17 mm
Always keep carbon brushes clean and ensure that they slide freely
within the brush holders.
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REPLACEMENT STEPS