Infocus DH 22PB User Manual download pdf (Page 18)

APPLICATIONS

Rotation and hammering function

䡬 Drilling anchor holes

䡬 Drilling holes in concrete

䡬 Drilling holes in tile

Rotation only function

䡬 Drilling in steel or wood

(with optional accessories)

䡬 Tightening machine screws, wood screws

(with optional accessories)

PRIOR TO OPERATION

1. Power source

Ensure that the power source to be utilized conforms

to the power requirements specified on the product

nameplate.

2. Power switch

Ensure that the power switch is in the OFF position.

If the plug is connected to a power receptacle while

the power switch is in the ON position, the power

tool will start operating immediately, which could

cause a serious accident.

3. Extension cord

When the work area is removed from the power

source, use an extension cord of sufficient thickness

and rated capacity. The extension cord should be kept

as short as practicable.

4. Mounting the drill bit (Fig. 1)

CAUTION

To prevent accidents, make sure to turn the switch

off and disconnect the plug from the receptacle.

NOTE

When using tools such as bull points, drill bits, etc.,

make sure to use the genuine parts designated by

our company.

(1) Clean the shank portion of the drill bit.

(2) Insert the drill bit in a twisting manner into the tool

holder until it latches itself (Fig. 1).

(3) Check the latching by pulling on the drill bit.

(4) To remove the drill bit, fully pull the grip in the

direction of the arrow and pull out the drill bit (Fig. 2).

5. Installation of dust cup or dust collector (B)

(Optional accessories) (Fig. 3, Fig. 4)

When using a hammer drill for upward drilling

operations attach a dust cup or dust collector (B) to

collect dust or particles for easy operation.

䡬 Installing the dust cup

Use the dust cup by attaching to the drill bit as shown

in Fig. 3.

When using a bit which has big diameter, enlarge the

center hole of the dust cup with this hammer drill.

䡬 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. 4).

CAUTION

䡬 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.

䡬 Insert dust collector (B) completely into the chuck

part of the main unit.

䡬 When turning the hammer drill 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 the 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.

䡬 Dump particles after every two or three holes when

drilling.

䡬 Please replace the drill bit after removing dust

collector (B).

6. 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.

7. Confirm the direction of bit rotation (Fig. 5)

The bit rotates clockwise (viewed from the rear side)

by pushing the R-side of the push button. The L-side

of the push button is pushed to turn the bit

counterclockwise.

HOW TO USE

CAUTION

To prevent accidents, make sure to turn the switch

off and disconnect the plug from the receptacle when

the drill bits and other various parts are installed or

removed. The power switch should also be turned

off during a work break and after work.

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.

2. Rotation + hammering

This rotary hammer can be set to rotation and

hammering mode by pressing the push button and

turning the change lever to the

mark (Fig. 6).

(1) Mount the drill bit.

(2) Pull the trigger switch after applying the drill bit tip to

the drilling position (Fig. 7).

(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. 7.

3. Rotation only

This rotary hammer can be set to rotation only mode

by pressing the push button and turning the change

lever to the

mark (Fig. 8).

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. 9)

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Infocus DH 22PB User Manual Page 18

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