Home
Главная
Hitachi
Перфораторы
DH28PD
Инструкция по эксплуатации Страница: 15

Hitachi DH28PD [15/100] English

English

(3) Drilling holes

When drilling holes, hold the rotary hammer so that

the tip of the nozzle contacts with the concrete surface.

Dust-collecting effectiveness is reduced if the unit is

not in contact with the surface (Fig. 12).

(4) Removing dust

Excessive dust in the dust box will reduce dust-

collecting effectiveness. Empty the dust box regularly.

Push the lever to remove the dust box from the dust-

collecting unit, and empty and clean the box (Fig. 13).

Dust-collecting effectiveness is reduced if the filter in

the dust box becomes blocked.

Use the table below as a guide to replacement of the

dust box.

(5) Replacing the rubber cap

Wear of the rubber cap will reduce dust-collecting

effectiveness.

Replace the rubber cap when it becomes worn.

How to replace the rubber cap (Fig. 14)

(1) Remove the nozzle seal from the nozzle.

(2) Replace the rubber cap with a new cap.

Fit the rubber cap making sure that it is correctly

oriented.

(3) Attach the nozzle seal.

Insert the lip of the nozzle seal securely into the

groove of the nozzle.

At this time, make sure that the groove between the

nozzle and the nozzle seal is uniform all the way

round.

4. When not using the dust-collecting unit

When using the rotary hammer without the dust-

collecting unit, attach the provided cover in the unit

attachment hole (Fig. 15).

CAUTION

If no cover is attached, dust or other particles may be

sucked up from the hole, causing damage to the

motor.

5. Rotation only

NOTE:

The dust-collecting unit cannot be used. Remove the

unit and attach the provided cover in the unit

attachment hole.

CAUTION

If no cover is attached, dust or other particles may be

sucked up from the hole, causing damage to the

motor.

This rotary hammer can be set to rotation only mode

by pressing the push button and turning the change

lever to the

mark. (Fig. 16)

Turn the grip slightly and confirm that the clutch has

been engaged with a click.

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. 17)

(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:

䡬 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.

Dust box capacity Drill diameter of 6 mm / depth of 28 mm: 130 holes

Drill diameter of 8 mm / depth of 30 mm: 75 holes

Drill diameter of 12 mm / depth of 50 mm: 20 holes

Guide to replacement of dust box Dust box has been filled and emptied 100 times

䡬 Drill bits may snap off while withdrawing the rotary

hammer from the drilled hole. For withdrawing, it is

important to use a pushing motion.

䡬 Do not attempt to drill anchor holes or holes in

concrete with the machine set in the rotation only

function.

䡬 Do not attempt to use the rotary hammer in the

rotation and hammering function with the drill chuck

and chuck adapter attached. This would seriously

shorten the service life of every component of the

machine.

6. When driving machine screws (Fig. 18)

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.

CAUTION:

䡬 Exercise care not to excessively prolong driving time,

otherwise, the screws may be damaged by excessive

force.

䡬 Apply the rotary hammer perpendicularly to the screw

head when driving the screw; otherwise, the screw

head or bit will be damaged, or driving force will not

be fully transferred to the screw.

䡬 Do not attempt to use the rotary hammer in the

rotation and hammering function with the chuck

adapter and bit attached.

7. When driving wood screws (Fig. 18)

(1) Selecting a suitable driver bit

Employ plus-head screws, if possible, since the driver

bit easily slips off the heads of minus-head screws.

(2) Driving in wood screws

䡬 Prior to driving in wood screws, make pilot holes

suitable for them in the wooden board. Apply the bit

to the screw head grooves and gently drive the screws

into the holes.

䡬 After rotating the rotary hammer at low speed for a

while until the wood screw is partly driven into the

wood, squeeze the trigger more strongly to obtain

the optimum driving force.

CAUTION:

Exercise care in preparing a pilot hole suitable for the

wood screw taking the hardness of the wood into

consideration. Should the hole be excessively small

or shallow, requiring much power to drive the screw

into it, the thread of the wood screw may sometimes

be damaged.

01Eng_DH28PD_EE 9/30/09, 15:3214

Hitachi DH28PD [15/100] English

Содержание

Похожие устройства