Makita 8406C, Instruction Manual

Page: 5 / 72

5
ENGLISH
Explanation of general view
1 Grip base
2 Side grip
3 Teeth
4 Cover
5 Chuck key
6 Depth gauge
7 Clamp screw
8 Lock button
9 Trigger switch
10 Speed change lever
11 Handle
12 Speed adjusting dial
13 Action mode change lever
14 Rivet
15 Sponge
16 Diamond core bit
17 Guide ring
18 Adhesive sheet
19 Pilot groove
20 Core material
21 Holder
22 Hex wrench
23 Screw
24 Marking
25 Center bit
26 Core bit
27 Bit shank
28 Center of hole
29 Small rod
30 Limit mark
31 Brush holder cap
32 Screwdriver
SPECIFICATIONS
Model 8406C
Capacities
Concrete
DIamond core bit ........................................... 152 mm
Tungsten-carbide tipped bit.............................. 20 mm
Steel ................................................................... 13 mm
Wood .................................................................. 30 mm
No load speed (min
–1
)
High ......................................................... 1,800 – 4,000
Low ............................................................. 900 – 2,000
Blows per minute
High ..................................................... 28,800 – 64,000
Low ...................................................... 14,400 – 32,000
Overall length ..................................................... 455 mm
Net weight ...............................................................4.5 kg
• Due to our continuing program of research and devel-
opment, the specifications herein are subject to change
without notice.
• Note: Specifications may differ from country to country.
Power supply
The tool should be connected only to a power supply of
the same voltage as indicated on the nameplate, and can
only be operated on single-phase AC supply. They are
double-insulated in accordance with European Standard
and can, therefore, also be used from sockets without
earth wire.
Safety hints
For your own safety, please refer to the enclosed Safety
instructions.
ADDITIONAL SAFETY RULES
1. Wear a hard hat (safety helmet), safety glasses
and/or face shield. It is also highly recom-
mended that you wear a dust mask, ear protec-
tors and thickly padded gloves.
2. 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.
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. Always use
the side grip.
5. Keep hands away from rotating parts.
6. Do not leave the tool running. Operate the tool
only when hand-held.
7. When drilling into walls, floors or wherever
“live” electrical wires may be encountered, DO
NOT TOUCH ANY METAL PARTS OF THE TOOL!
Hold the tool by the insulated grasping surfaces
to prevent electric shock if you drill into a “live”
wire.
8. Do not touch the bit or the workpiece immedi-
ately after operation; they may be extremely hot
and could burn your skin.
9. When using a wet type of diamond core bit,
ALWAYS USE AN EARTHLEAKAGE CIRCUIT
BREAKER TO PROTECT YOU AGAINST ELEC-
TRIC SHOCK. For additional protection against
electric shock, be sure to wear rubber gloves
and rubber boots.
SAVE THESE INSTRUCTIONS.
OPERATING INSTRUCTIONS
Side grip (auxiliary handle) (Fig. 1)
The position of the side grip can be changed in 30° incre-
ments. To change the position, loosen the side grip by
turning counterclockwise and slip out the side grip teeth
from the grooves on the tool. Swing the side grip to the
desired position and then slip the side grip teeth back
into the grooves on the tool. Then tighten the side grip
securely by turning clockwise.
Installing cover (optional accessory) (Fig. 2)
CAUTION:
When using a wet type of diamond core bit, always install
a cover (optional accessory) on the tool to thoroughly
protect the tool from water.
First, unplug the tool. Remove the grip base from the
tool. Install the cover on the tool so that the teeth on the
cover fit into the grooves on the tool. Then, install the
grip base on the tool and secure by tightening the side
grip firmly.
Installing or removing diamond core bit or drill bit
(Fig. 3)
CAUTION:
Always be sure that the tool is switched off and
unplugged before installing or removing the bit.
To install the bit, place it in the chuck as far as it will go.
Tighten the chuck by hand. Place the chuck key in each
of the three holes and tighten clockwise. Be sure to
tighten all three chuck holes evenly.
To remove the bit, turn the chuck key counterclockwise in
just one hole, then loosen the chuck by hand.