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5
(2) For bits without a collar
Pivot the tool retainer front and slightly downward.
With the notched portion of the bit facing the tool
retainer shaft, insert the bit into the tool holder as
far as it will go. Then pivot the tool retainer further
downward toward the barrel to securely retain the
bit.
CAUTION:
• Always assure that the bit is securely retained by
attempting to pull the bit out of the tool holder after
completing the above procedure.
• The bit without a collar cannot be retained by the
method shown in Fig.(1).
To remove the bit, follow the installation procedure in
reverse.
OPERATION
Chipping/Scaling/Demolition
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
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.
Use a hex wrench to remove the motor housing cover.
Use a screwdriver to remove the brush holder caps. Take
out the worn carbon brushes, insert the new ones and
secure the brush holder caps.
Lubrication
This tool requires no hourly or daily lubrication because it
has a grease-packed lubrication system. It should be
relubricated after every 6 months of operation. Send the
complete tool to Makita Authorized or Factory Service
Center for this lubrication service. However, if circum-
stances require that you should lubricate it by yourself,
proceed as follows.
First, switch off and unplug the tool.
Remove the cap using a wrench 23, then replenish with
fresh grease (60 g; 2 oz). Use only Makita genuine ham-
mer grease (optional accessory). Filling with more than
the specified amount of grease (approx. 60 g; 2 oz) can
1. Notched portion
2. Tool retainer
shaft
3. Barrel
4. When the bit is
inserted
5. When the bit is
retained
1. Commutator
2. Insulating tip
3. Carbon brush
1
2
3
45
Fig.2
006201
1
2
3
001146
1. Hex wrench 5
2. Motor housing
cover
1. Brush holder
cap
2. Screwdriver
1. Cap
2. Wrench 23
1
2
006203
12
006204
1
2
006205