Functional Description - Makita HM1304B Instruction Manual

used for a long time, let the tool warm up for a
while by operating it under no load. This will
loosen up the lubrication. Without proper
warm-up, hammering operation is difficult.
8. Always be sure you have a firm footing.
Be sure no one is below when using the tool in
high locations.
9. Hold the tool firmly with both hands.
10. Keep hands away from moving parts.
11. Do not leave the tool running. Operate the tool
only when hand-held.
12. Do not point the tool at any one in the area
when operating. The bit could fly out and
injure someone seriously.
13. Do not touch the bit or parts close to the bit
immediately after operation; they may be
extremely hot and could burn your skin.
14. Do not operate
unnecessarily.
15. Some material contains chemicals which may
be toxic. Take caution to prevent dust
inhalation and skin contact. Follow material
supplier safety data.
SAVE THESE INSTRUCTIONS.
WARNING:
MISUSE or failure to follow the safety rules stated in
this instruction manual may cause serious personal
injury.

FUNCTIONAL DESCRIPTION

CAUTION:
Always be sure that the tool is switched off and
•
unplugged before adjusting or checking function on
the tool.
Switch action
Fig.1
CAUTION:
Before plugging in the tool, always check to see
•
that the switch trigger actuates properly and
returns to the "OFF" position when released.
To start the tool, simply pull the switch trigger. Release
the switch trigger to stop.
For continuous operation, pull the switch trigger and
then slide down the lock button.
To stop the tool from the locked position, pull the switch
trigger fully, then release it.
ASSEMBLY
CAUTION:
Always be sure that the tool is switched off and
•
unplugged before carrying out any work on the
tool.
the tool at no-load
Side handle (auxiliary handle)
Fig.2
The side handle can be either freely swiveled or secured
at one position for use during tool operation. Just loosen
the nut to swivel the handle freely.
To secure the handle at a fixed position, first loosen the
nut and swing the handle to the desired position for use.
Then tighten the nut firmly. If the set bolt turns together
with the nut when you secure the nut, see that the
projecting portion of the side handle fits into the notch on
the head of the set bolt.
Installing or removing the bit
Fig.3
This tool accepts bits either with or without a collar on its
shank.
To install the bit, follow either procedure (1) or (2)
described below.
(1) For bits with a collar
1
2
3
1. Bit
2. Tool retainer
3. Tool holder
4. When the bit is inserted
5. When the bit is retained
003894
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
1. Notched portion
2. Tool retainer shaft
3. Barrel
4. When the bit is inserted
5. When the bit is retained
003895
4
4
4
5
5