Hitachi DS 12DVC, Handling Instructions Manual

13

CAUTION

○

  The selection examples shown in 

Table

4

 should be 

considered as general standard

.

 As di

ff

 erent types of 

tightening screws and di

ff

 erent materials to be tightened 

are used in actual works proper adjustments are naturally 

necessary

.

○

  When using the driver drill with a machine screw at HIGH 

(high speed), a screw may damage or a bit may loose 

due to the tightning torque is too strong

.

 Use the driver 

drill at LOW (low speed) when using a machine screw

.

6

. 

Mounting

and

dismounting

of

the

bit

(1)  After inserting a driver bit, etc

.

 into the keyless drill chuck, 

fi

 rmly grasp the ring and tighten the sleeve by turning it 

toward the right (in the clockwise direction as viewed 

from the front) (See 

Fig

. 

9

)

.

○

  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

  Firmly grasp the ring and loosen the sleeve by turning 

it toward the left (in the counter-clockwise direction as 

viewed from the front) (See 

Fig

. 

9

)

.

7

. 

Con

fi 

rm

that

the

battery

is

mounted

correctly

8

. 

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

. 

10

) (The 

L

 and 

R

 marks 

are provided on the body)

.

9

. 

Switch

operation

○

  When the trigger switch is depressed, the tool rotates

.

When the trigger is released, the tool stops

.

○

  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

.

10

. 

Using

the

bit

holder

CAUTION

○

  Stow the bit in the speci

fi

 ed location on the tool

.

 If the tool 

is used with the bit stowed improperly, the bit may fall and 

cause bodily injury

.

○

  Do not stow bits that are of a di

ff

 erent length, gauge or 

dimension than the plus driver bit (65 mm long) included 

in the STANDARD ACCESSORIES

.

The bit may fall and cause bodily injury

.

(1)  Removing the bit

Securely hold the main unit and pull out the bit by holding 

the tip with your thumb (

Fig

. 

11

)

.

(2)  Installing the Bit

  Install the bit with steps opposite of when removing

.

Insert the bit so that the right and left sides are equal, as 

shown in 

Fig

. 

12

MAINTENANCE

AND

INSPECTION

1

. 

Inspecting

the

tool

Since use of as dull tool will degrade e

ffi

  ciency 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

. 

Cleaning

on

the

outside

When the driver drill is stained, wipe with a soft dry cloth 

or a cloth moistened with soapy water

.

 Do not use chloric 

solvents, gasoline or paint thinner, for they melt plastics

.

4

. 

Storage

Store the driver drill in a place in which the temperature is 

less than 40°C and out of reach of children

.

5

. 

Service

parts

list

CAUTION

Repair, modi

fi

 cation and inspection of Hitachi Power 

Tools must be carried out by a Hitachi Authorized Service 

Center

.

This Parts List will be helpful if presented with the tool to 

the Hitachi Authorized Service Center when requesting 

repair or other maintenance

.

  In the operation and maintenance of power tools, the 

safety regulations and standards prescribed in each 

country must be observed

.

MODIFICATIONS

  Hitachi Power Tools are constantly being improved 

and modi

fi

 ed to incorporate the latest technological 

advancements

.

  Accordingly, some parts may be changed without prior 

notice

.

Important

notice

on

the

batteries

for

the

Hitachi

cordless

power

tools

Please always use one of our designated genuine batteries

.

We cannot guarantee the safety and performance of 

our cordless power tool when used with batteries other 

than these designated by us, or when the battery is 

disassembled and modi

fi

 ed (such as disassembly and 

replacement of cells or other internal parts)

.

NOTE

Due to HITACHI’s continuing program of research and 

development, the speci

fi

 cations herein are subject to change 

without prior notice

.

000Book̲DS9DVC̲Ch.indb   13

000Book̲DS9DVC̲Ch.indb   13

2010/06/18   9:46:28

2010/06/18   9:46:28