Manual Hitachi DS 12DM (page 12 of 78) (English, German, Dutch, French, Italian, Portuguese, Spanish)

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English

⅜ Do not attach the tip tool except phillips bit to the tool

main unit when carrying the tool main unit with the

hook suspended from a waist belt.

Injury may result if you carry the equipment

suspended from the waist belt with sharp tipped

components such as drill bit attached.

The hook can be installed on the right or left side and the

angle can be adjusted in 5 steps between 0° and 80°.

(1) Operating the hook

(a) Pull out the hook toward you in the direction

of arrow (A) and turn in the direction of arrow

(B) (Fig. 9).

(b) The angle can be adjusted in 5 steps (0°, 20°,

40°, 60°, 80°).

Adjust the angle of the hook to the desired

position for use.

(2) Switching the hook position

CAUTION

Incomplete installation of the hook may result in

bodily injury when used.

(a) Securely hold the main unit and remove the

screw using a slotted head screwdriver or a coin

(Fig. 10).

(b) Remove the hook and spring (Fig. 11).

securely fasten with screw (Fig. 12).

NOTE

Pay attention to the spring orientation. Install the

spring with larger diameter away from you (Fig. 12).

(3) Using the bit holder

⅜ Installing the bit

Slide the bit from the side in the direction of Fig. 13,

and then insert firmly until the groove on the bit locks

in the protruded section of the hook.

⅜ Removing the bit

Securely hold the main unit and pull out the bit by

holding the tip with your thumb (Fig. 14).

CAUTION

⅜ The bit may come loose from the hook and cause

bodily injury when reversing the direction of the

bit as shown in Fig. 13 or when using the driver

with the bit stored incomplete.

⅜ Only Hitachi OPTIONAL ACCESSORIES plus driver

bits (Bit No. 2; Code No. 992671, Bit No. 3; Code

No. 992672) may be used. Do not use other bits

since they may come loose.

7. Mounting and dismounting of the bit

(1) Mounting the bit

Loosen the sleeve by turning it toward the left (in

the counterclockwise direction as viewed from the

front) to open the clip on the keyless chuck. After

inserting a driver bit, etc., into the keyless drill

chuck, and tighten the sleeve by turning it toward

the right (in the clockwise direction as viewed from

the front) (See Fig. 15).

If the sleeve becomes loose during operation, tighten

it further.

The tightening force becomes stronger when the

sleeve is tightened additionally.

(2) Dismounting the bit

Loosen the sleeve by turning it toward the left (in

the counterclockwise direction as viewed from the

front), and then take out the bit etc. (See Fig. 15).

NOTE

If the sleeve is tightened in a state where the clip

of the keyless chuck is opened to a maximum limit,

a click noise may occur. This is the noise that occurs

when the loosening of the keyless chuck is prevented

and is not a malfunction.

CAUTION

When it is no longer possible to loosen the sleeve,

use a vise or similar instrument to secure the bit.

Set the clutch mode between 1 and 11 and then

turn the sleeve to the loose side (left side) while

operating the clutch. It should be easy now to

loosen the sleeve.

8. Automatic spindle-lock mechanism

This unit has automatic spindle-lock mechanism for

quick bit changes.

9. Confirm that the battery is mounted correctly

10. Check the rotational direction

The bit rotates clockwise (viewed from the rear

side) by pushing the R-side of the selector button.

The L-side of the selector button is pushed to turn

the bit counterclockwise (See Fig. 16) (The

and

marks are provided on the body).

11. Switch operation

⅜ When the trigger switch is depressed, the tool

rotates. When the trigger is released, the tool stops.

⅜ The rotational speed of the drill can be controlled

by varying the amount that the trigger switch is

pulled. Speed is low when the trigger switch is

pulled slightly and increases as the trigger switch

is pulled more.

NOTE

A buzzing noise is produced when the motor is

about to rotate; This is only a noise, not a machine

failure.

MAINTENANCE AND INSPECTION

1. Inspecting the tool

Since use of as dull tool will degrade efficiency and

cause possible motor malfunction, sharpen or

replace the tool as soon as abrasion is noted.

2. Inspecting the mounting screws

Regularly inspect all mounting screws and ensure

that they are properly tightened. Should any of the

screws be loose, retighten them immediately. Failure

to do so could result in serious hazard.

3. Maintenance of the motor

The motor unit winding is the very “heart” of the

power tool.

Exercise due care to ensure the winding does not

become damaged and/or wet with oil or water.

4. Inspecting the carbon brushes (Fig. 17)

The motor employs carbon brushes which are

consumable parts. Since and excessively worn

carbon brush can result in motor trouble, replace

the carbon brush with new ones when it becomes

worn to or near the “wear limit”. In addition, always

keep carbon brushes clean and ensure that they

slide freely whthin the brush holders.

NOTE

When replacing the carbon brush with a new one,

be sure to use the Hitachi Carbon Brush Code No.

999054.

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Hitachi DS 12DM Manual

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