Makita HR2020 - Manual (Page 5)

5
ENGLISH
Explanation of general view
1 Grip base
2 Side grip (auxiliary handle)
3 Teeth
4 Protrusions
5 Loosen
6 Tighten
7 Bit shank
8 Bit grease
9 Bit
10 Chuck cover
11 Depth gauge
12 Switch trigger
13 Lock button
14 Reversing switch lever
15 Action mode changing knob
16 Blow-out bulb
17 Dust cup
18 Chuck adapter
19 Keyless drill chuck
20 Sleeve
21 Ring
22 Tighten
23 Loosen
SPECIFICATIONS
Model HR2020/HR2020X HR2021 HR2022
Capacities
Concrete
Tungsten-carbide tipped bit....................... 20mm 20mm 20mm
Core bit ..................................................... 54mm 54mm 54mm
Diamond core bit (dry type) ...................... 65mm 65mm 65mm
Wood .......................................................... 32 mm 32 mm 32 mm
Steel ........................................................... 13 mm 13 mm 13 mm
No load speed (min
-1
) .................................... 0 – 1,050 0 – 1,050 1,050
Blows per minute ........................................... 0 – 4,050 0 – 4,050 4,050
Overall length ................................................ 352 mm 352 mm 352 mm
Net weight ...................................................... 2.3 kg 2.3 kg 2.3 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.
Intended use
The tool is intended for hammer drilling and drilling in
brick, concrete and stone. It is also suitable for drilling
without impact in wood, metal, ceramic and plastic.
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
ENB010-1
1. Hold tools by insulated gripping surfaces when
performing an operation where the cutting tool
may contact hidden wiring or its own cord. Con-
tact with a “live” wire will make exposed metal parts
of the tool “live” and shock the operator.
2. Wear ear protertors when using the tool for
extended periods. Prolonged exposure to high
intensity noise can cause hearing loss.
3. Wear a hard hat (safety helmet), safety glasses
and/or face shield. It is also highly recom-
mended that you wear a dust mask, and thickly
padded gloves.
4. Be sure the bit is secured in place before opera-
tion.
5. 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.
6. 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.
7. Always be sure you have a firm footing.
Be sure no one is below when using the tool in
high locations.
8. Hold the tool firmly with both hands.
9. Keep hands away from moving parts.
10. Do not leave the tool running. Operate the tool
only when hand-held.
11. Do not point the tool at any one in the area when
operating. The bit could fly out and injure some-
one seriously.
12. Do not touch the bit or parts close to the bit
immediately after operation; they may be
extremely hot and could burn your skin.
SAVE THESE INSTRUCTIONS.
OPERATING INSTRUCTIONS
Side grip (auxiliary handle) (Fig. 1)
Always use the side grip to ensure operating safety.
Install the side girp so that the teeth on the grip fit in
between the protrusions on the tool barrel. Then tighten
the grip by turning clockwise at the desired position. It
may be swung 360° so as to be secured at any position.