User's Manual

5
(1) For bits with a collar
1
2
3
Fig.1
45
006202
Pivot the tool retainer back and slightly downward.
Insert the bit into the tool holder as far as it will go.
To securely retain the bit, return the tool retainer to
its original position.
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.
(2) For bits without a collar
1
2
3
45
Fig.2
006201
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
1
2
3
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.
Use a hex wrench to remove the motor housing cover.
1
2
006203
Remove the cap rubber.
1
008624
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.
1. Cap rubber
1. Hex wrench 5
2. Motor housing
cover
1. Commutator
2. Insulating tip
3. Carbon brush
1. Notched portion
2. Tool retainer
shaft
3. Barrel
4. When the bit is
inserted
5. When the bit is
retained
1. Bit
2. Tool retainer
3. Tool holder
4. When the bit is
inserted
5. When the bit is
retained