Makita 8420V, Instruction Manual

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4
GEB099-1
HAMMER DRILL SAFETY
WARNINGS
1. Wear ear protectors when impact drilling.
Exposure to noise can cause hearing loss.
2. Use auxiliary handle(s), if supplied with the
tool.
Loss of control can cause personal injury.
3. Always be sure you have a firm footing.
Be sure no one is below when using the tool in
high locations.
4. Hold the tool firmly with both hands.
5. Keep hands away from rotating parts.
6. Do not leave the tool running. Operate the tool
only when hand-held.
7. Do not touch the bit or the workpiece
immediately after operation; they may be
extremely hot and could burn your skin.
8. 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:
DO NOT let comfort or familiarity 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
1
2
3
012954
CAUTION:
•
Before plugging in the tool, always check to see
that the switch trigger actuates properly and returns
to the "OFF" position when released.
•
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.
Tool speed is increased by increasing pressure on the
switch trigger.
To start the tool, simply pull the switch trigger. Tool speed
is increased by increasing pressure on the switch trigger.
Release the switch trigger to stop.
For continuous operation, pull the switch trigger and then
push in the lock button.
To stop the tool from the locked position, pull the switch
trigger fully, then release it.
A speed control screw is provided so that maximum tool
speed can be limited (variable). Turn the speed control
screw clockwise for higher speed, and counterclockwise
for lower speed.
Selecting the action mode
Rotation with hammering:
1
012955
For drilling in concrete, granite, tile, etc., move the
change lever to the
position.
1. Change lever
1. Speed control
screw
2. Switch trigger
3. Lock button