Functional Description - Makita HM1802 Instruction Manual

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
CAUTION:
• Before plugging in the tool, always check to
see that the switch lever actuates properly and
returns to the "OFF" position when released.
► Fig.1: 1. Switch lever
To start the tool, simply squeeze the switch lever.
Release the switch lever to stop.
For model HM1812 only
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 trou-
ble. Once operation starts with a bit against
concrete, blows per minute increase. When
temperature is low and there is less fluidity in
grease, the tool may not have this function even
with the motor rotating.
Indicator lamps
► Fig.2: 1. Power-ON indicator lamp (green)
2. Service indicator lamp (red)
The green power-ON indicator lamp lights up when the
tool is plugged. 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 some
period of use, motor will automatically be shut off.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the
tool.
Installing soft grip
► Fig.3: 1. Soft grip 2. Bolt
Soft grip is NOT installed before factory shipment.
Install soft grip securely.
► Fig.4: 1. Triangle alignment mark
Set the triangle alignment marks on the hammer body
and on the soft grip when installing the soft grip.
Installing or removing the bit
(optional accessory)
CAUTION:
• Always assure that the bit is securely retained
by attempting to pull the bit out of the tool holder
after installing the bit.
• Follow the below 2 installation methods in
accordance with the 2 different types of bits. If
inappropriate installation method is selected, the
bit cannot be secured.
► Fig.5: 1. Bit with collar 2. Bit without collar
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
► Fig.6: 1. Bit 2. Tool retainer 3. Tool holder
Pivot the tool retainer downward (approx. 60 degrees).
Insert the bit into the tool holder until it stops. Return the
tool retainer and secure the bit.
(2) For bits without a collar
► Fig.7: 1. Notched portion of the bit 2. Tool retainer
3. Tool holder
Pivot the tool retainer upward (approx. 60 degrees).
Face the notched portion of the bit upward. Insert the bit
into the tool holder until it stops. Pivot the tool retainer
further until it stops at the tool holder.
To remove the bit, follow the installation procedure in
reverse.
4 ENGLISH