Makita GA5020 Instruction Manual page 17

Operation with hole cutter
Optional accessory
CAUTION:
Check operation of the hole cutter
by running the tool with no load, insuring that no
one is in front of the hole cutter.
NOTICE:
Do not tilt the tool during operation. It
may lead to premature breakage.
Usage example: operation with hole cutter
► Fig.35
MAINTENANCE
CAUTION:
Always be sure that the tool is
switched off and unplugged before attempting to
perform inspection or maintenance.
NOTICE:
Never use gasoline, benzine, thinner,
alcohol or the like. Discoloration, deformation or
cracks may result.
To maintain product SAFETY and RELIABILITY,
repairs, any other maintenance or adjustment should
be performed by Makita Authorized or Factory Service
Centers, always using Makita replacement parts.
Air vent cleaning
The tool and its air vents have to be kept clean.
Regularly clean the tool's air vents or whenever the
vents start to become obstructed.
► Fig.36: 1. Exhaust vent 2. Inhalation vent
Replacing carbon brushes
► Fig.37: 1. Limit mark
Check the carbon brushes regularly.
Replace them when they wear down to the limit mark.
Keep the carbon brushes clean and free to slip in the
holders. Both carbon brushes should be replaced at the
same time. Use only identical carbon brushes.
1. Use a screwdriver to remove the brush holder
caps.
2. Take out the worn carbon brushes, insert the new
ones and secure the brush holder caps.
► Fig.38: 1. Brush holder cap 2. Screwdriver
17 ENGLISH