Functional Description; Speed Change; Indicator Lamp - Makita HM1214C Instruction Manual

4. Wear a hard hat (safety helmet), safety glasses
and/or face shield. Ordinary eye or sun glasses
are NOT safety glasses. It is also highly recom-
mended that you wear a dust mask and thickly
padded gloves.
5. Be sure the bit is secured in place before
operation.
6. Under normal operation, the tool is designed
to produce vibration. The screws can come
loose easily, causing a breakdown or accident.
Check tightness of screws carefully before
operation.
7. In cold weather or when the tool has not been
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.
Do not leave the tool running. Operate the tool
11.
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 the tool at no-load
unnecessarily.
15. Some material contains chemicals which may
be toxic. Take caution to prevent dust inhala-
tion and skin contact. Follow material supplier
safety data.
SAVE THESE INSTRUCTIONS.
WARNING: DO NOT let comfort or famil-
iarity with product (gained from repeated
use) replace strict adherence to safety rules
for the subject product.
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: 1. Switch lever
CAUTION:
• Before plugging in the tool, always check to see
that the tool is switched off.
• Switch can be locked in "ON" position for ease
of operator comfort during extended use. Apply
caution when locking tool in "ON" position and
maintain firm grasp on tool.

Speed change

► Fig.2: 1. Adjusting dial
The blows per minute can be adjusted just by turning the
adjusting dial. This can be done even while the tool is run-
ning. The dial is marked 1 (lowest speed) to 5 (full speed).
Refer to the table below for the relationship between the num-
ber settings on the adjusting dial and the blows per minute.
Number on adjusting dial
5
4
3
2
1
NOTE:
• Blows at no load per minute becomes smaller than those
on load in order to reduce vibration under no load, but
this does not show trouble. Once operation starts with a
bit against concrete, blows per minute increase and get
to the numbers as shown in the table. When temperature
is low and there is less fluidity in grease, the tool may not
have this function even with the motor rotating.
CAUTION:
• The speed adjusting dial can be turned only as
far as 5 and back to 1. Do not force it past 5 or
1, or the speed adjusting function may no longer
work.

Indicator lamp

► Fig.3: 1. Power-ON indicator lamp (green)
2. Service indicator lamp (red)
The green power-ON indicator lamp lights up when the tool
is plugged. If the indicator lamp does not light up, the mains
cord or the controller may be malfunction. The indicator lamp
is lit but the tool does not start even if the tool is switched on,
the carbon brushes may be worn out, or the controller, the
motor or the ON/OFF switch may be malfunction.
The red service indicator lamp flickers up when the
carbon brushes are nearly worn out to indicate that the
tool needs servicing. After approx. 8 hours of use, the
motor will automatically be shut off.
5 ENGLISH
Blows per minute
1,900
1,700
1,450
1,200
950