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Operation; Maintenance; Replacing Carbon Brushes - Makita HM1202 Instruction Manual

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002922
If the bit cannot be pushed in, remove the bit. Pull the
tool holder cover down a couple of times. Then insert the
bit again. Turn the bit and push it in until it engages.
After installing, always make sure that the bit is securely
held in place by trying to pull it out.
To remove the bit, pull the tool holder cover down all the
way and pull the bit out.
002923
Bit angle
1
002939
The bit can be secured at 12 different angles. To change
the bit angle, slide the change ring forward, then turn the
change ring to change the bit angle. At the desired angle,
slide the change ring back to the original position. The
bit will be secured in place.
NOTE:
The change ring cannot turn when the bit is not
installed on the tool.
1. Bit
2. Tool holder
cover
1. Change ring
6

OPERATION

Chipping/Scaling/Demolition
002945
Hold the tool firmly with both hands. Turn the tool on and
apply slight pressure on the tool so that the tool will not
bounce around, uncontrolled. Pressing very hard on the
tool will not increase the efficiency.

MAINTENANCE

CAUTION:
Always be sure that the tool is switched off and
unplugged before attempting to perform inspection
or maintenance.

Replacing carbon brushes

1
001146
When the resin insulating tip inside the carbon brush is
exposed to contact the commutator, it will automatically
shut off the motor. When this occurs, both carbon
brushes should be replaced. 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.
Remove the screws which secure the rear cover. Pry up
the rear cover with a screwdriver and remove it.
1
002953
1. Commutator
2. Insulating tip
2
3. Carbon brush
3
1. Screwdriver
2. Rear cover
3. Screws
2
3

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