Makita HM1317C Instruction Manual page 6

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.
To start the tool, push the switch lever "ON (I)" on the
left side of the tool. To stop the tool, push the switch
lever "OFF (O)" on the right side of the 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 running. The dial is marked 1 (lowest speed) to 5 (full
speed).
Refer to the table below for the relationship between
the number settings on the adjusting dial and the blows
per minute.
Number on adjusting dial
5
4
3
2
1
Blows per minute
1,450
1,350
1,150
800
730
6 ENGLISH
For model HM1317C,HM1317CB 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 trouble.
Once operation starts with a bit against con-
crete, blows per minute increase and get to the
numbers as shown in the table. When tempera-
ture is low and there is less fluidity in grease,
the tool may not have this function even with the
motor rotating.
CAUTION:
• The 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.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the
tool.
Side handle (auxiliary handle)
► Fig.4: 1. Set bolt 2. Nut 3. Side handle
The side handle can be swung 360° on the vertical and
secured at any desired position. Just loosen the clamp
nut to swing the side handle to a desired position. Then
tighten the clamp nut securely.
Installing or removing the bit
For Model HM1307C,HM1317C only
► Fig.5: 1. Bit 2. Tool retainer 3. Tool holder
With the notched portion on the shank of the bit fac-
ing toward the tool retainer, insert the bit into the tool
holder as far as it will go. Then pull out and turn the tool
retainer 180° to secure the bit. After installing, always
make sure that the bit is securely held in place by trying
to pull it out.