How To Use - Hitachi DH2 4DVC S Bedienungsanleitung

English
Installing dust collector (B)
When using dust collector (B), insert dust collector
(B) from the tip of the bit by aligning it to the
groove on the grip. (Fig. 7)
CAUTION
The dust cup and dust collector (B) are for exclusive
use of concrete drilling work. Do not use them for
wood or metal drilling work.
Insert dust collector (B) completely into the chuck
part of the main unit.
When turning the rotary hammer on while dust
collector (B) is detached from a concrete surface,
dust collector (B) will rotate together with the drill
bit. Make sure to turn on the switch after pressing
dust cup on the concrete surface. When using dust
collector (B) attached to a drill bit that has more
than 190 mm of overall length, dust collector (B)
cannot touch the concrete surface and will rotate.
Therefore, please use dust collector (B) by attaching
to drill bits which have 166 mm, 160 mm, and 110
mm overall length.
Dump particles after every two or three holes when
drilling.
Please replace the drill bit after removing dust
collector (B).
4. Selecting the driver bit
Screw heads or bits will be damaged unless a bit
appropriate for the screw diameter is employed to
drive in the screws.
5. Confirm the direction of bit rotation (Fig. 8)
The bit rotates clockwise (viewed from the rear
side) by pushing the R-side of the push button. (Fig.
8-a)
The L-side of the push button is pushed to turn the
bit counterclockwise. (Fig. 8-b)
6. Continuous drilling
The number of holes that can be drilled in concrete
after one recharge is shown in Table 4.
Table 4
Bit dia. Depth
(mm) (mm)
6.5
8.5
10.5
12.5 60
14.5
18
20
These data are for the referential values. The number of
holes that can be drilled varies according to the sharpness
of the used bit or the conditions of the concrete being
drilled.
CAUTION
When using this unit continuously, the unit may
overheat, leading to damage in the motor and switch.
Please leave it without using it for approximately
15 minutes.
13
Possible continuous
drilling number (holes)
BSH2420
55
45
35
18
15
13
10

HOW TO USE

1. Switch operation
The rotation speed of the drill bit can be controlled
steplessly by varying the amount that the trigger
switch is pulled. Speed is low when the trigger
switch is pulled slightly and increases as the switch
is pulled more. Continuous operation may be
attained by pulling the trigger switch and depressing
the stopper. To turn the switch OFF, pull the trigger
switch again to disengage the stopper, and release
the trigger switch to its original position.
However, the switch trigger can only be pulled in
halfway during reverse and rotates at half the speed
of forward operation.
The switch stopper is unusable during reverse.
2. Rotation + hammering
This rotary hammer can be set to rotation and
hammering mode by turning the change lever to
the mark (Fig. 9).
(1) Mount the drill bit.
(2) Pull the trigger switch after applying the drill bit
tip to the drilling position (Fig. 10).
(3) Pushing the rotary hammer forcibly is not necessary
at all. Pushing slightly so that drill dust comes out
gradually is sufficient.
CAUTION
When the drill bit touches construction iron bar, the
bit will stop immediately and the rotary hammer
will react to revolve. Therefore grip the side handle
and handle tightly as shown in Fig. 10.
3. Rotation only
This rotary hammer can be set to rotation only
mode by turning the change lever to the
(Fig. 11).
To drill wood or metal material using the drill chuck
and chuck adapter (optional accessories), proceed
as follows.
Installing drill chuck and chuck adapter (Fig. 12).
(1) Attach the drill chuck to the chuck adapter.
(2) The part of the SDS-plus shank is the same as the
drill bit. Therefore, refer to the item of "Mounting
the drill bit" for attaching it.
CAUTION
Application of force more than necessary will not
only expedite the work, but will deteriorate the tip
edge of the drill bit and reduce the service life of
the rotary hammer in addition.
Drill bits may snap off while withdrawing the rotary
hammer from the drilled hole. For withdrawing, it
is important to use a pushing motion.
Do not attempt to drill anchor holes or holes in
concrete with the machine set in the rotation only
function.
Do not attempt to use the rotary hammer in the
rotation and striking function with the drill chuck
and chuck adapter attached. This would seriously
shorten the service life of every component of the
machine.
4. When driving machine screws (Fig. 13)
First, insert the bit into the socket in the end of
chuck adapter (D).
Next, mount chuck adapter (D) on the main unit
using procedures described in 4 (1), (2), (3), put the
tip of the bit in the slots in the head of the screw,
grasp the main unit and tighten the screw.
mark