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Аккумуляторный Ударный Гайковерт
WR18DBDL-TL
Инструкция по эксплуатации Страница: 13

Hitachi WR18DBDL-TL [13/96] English

English

4. Work at a tightening torque suitable for the bolt under impact

The optimum tightening torque for nuts or bolts differs with material and

size of the nuts or bolts. An excessively large tightening torque for a small

bolt may stretch or break the bolt. The tightening torque increases in

proportion to the operaton time. Use the correct operating time for the bolt.

5. Holding the tool

Hold the impact wrench firmly with both hands. In this case hold the wrench

in line with the bolt.

It is not necessary to push the wrench very hard. Hold the wrench with a

force just sufficient to counteract the impact force.

6. Confirm the tightening torque

The following factors contribute to a reduction of the tightening torque. So

confirm the actual tightening torque needed by screwing up some bolts

before the job with a hand torque wrench. Factors affecting the tightening

torque are as follows.

(1) Voltage

When the discharge margin is reached, voltage decreases and tightening

torque is lowered.

(2) Operating time

The tightening torque increases when the operating time increases. But the

tightening torque does not increase above a certain value even if the tool is

driven for a long time.

(3) Diameter of bolt

The tightening torque differs with the diameter of the bolt. Generally a larger

diameter bolt requires larger tightening torque.

(4) Tightening conditions

The tightening torque differs according to the torque ratio; class, and length

of bolts even when bolts with the same size threads are used. The tightening

torque also differs according to the condition of the surface of workpiece

through which the bolts are to be tightened. When the bolt and nut turn

together, torque is greatly reduced.

(5) Using optional parts (WR14DBDL / WR18DBDL)

The tightening torque is reduced a little when an extension bar, universal

joint or a long socket is used.

(6) Clearance of the socket (WR14DBDL / WR18DBDL)

A worn or deformed hex. or a square-holed socket will not give an adequate

tightness to the fitting between the nut or anvil, consequently resulting in

loss of tightening torque.

Using an improper socket which does not match to the bolt will result in an

insufficient tightening torque.

(7) Tightening torque varies, depending on the battery’s charge level.

MAINTENANCE AND INSPECTION

1. Inspecting the driver bit (WH14DBDL / WH18DBDL)

Using a broken bit or one with a worn out tip is dangerous because the bit

can slip. Replace it.

2. Inspecting the socket (WR14DBDL / WR18DBDL)

A worn or deformed hex. or a square-holed socket will not give an adequate

tightness to the fitting between the nut or anvil, consequently resulting in

loss of tightening torque. Pay attention to wear of a socket holes periodically,

and replace with a new one if needed.

3. 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 may result in serious hazard.

4. 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.

5. Cleaning of the outside

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

moistened with soapy water. Do not use chloric solvents, gasoline or paint

thinner, as they melt plastics.

6. Storage

Store the impact driver in a place in which the temperature is less than 40°C,

and out of reach of children.

NOTE:

Make sure that the battery is fully charged when stored for a long period (3

months or more). The battery with smaller capacity may not be able to be

charged when used, if stored for a long period.

7. Service parts list

CAUTION

Repair, modification 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 modified 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 modified (such as disassembly and

replacement of cells or other internal parts).

GUARANTEE

We guarantee Hitachi Power Tools in accordance with statutory/country specific

regulation. This guarantee does not cover defects or damage due to misuse,

abuse, or normal wear and tear. In case of complaint, please send the Power

Tool, undismantled, with the GUARANTEE CERTIFICATE found at the end of this

Handling instruction, to a Hitachi Authorized Service Center.

NOTE:

Due to HITACHI’s continuing program of reserch and development, the

specifications herein are subject to change without prior notice..

Содержание

Похожие устройства

English 4 Work at a tightening torque suitable for the bolt under impact 6 Storage The optimum tightening torque for nuts or bolts differs with material and Store the impactdriver ina place in wh ch thetemperature is less than 4 TC size of the nuts or bolts An excessively large tightening torque for a small bolt may stretch or break the bolt The tightening torque increases in and out of reach of children NOTE proportion to the operaton time Use the correct operating time for the bolt Make su re that the battery is fu lly charged when stored for a long period 3 5 Holding the tool months or more The battery with smaller capacity may not be able to be Hold the impact wrench firmly with both hands In this case hold the wrench charged when used if stored for a long period in line with the bolt 7 Service parts list It is not necessary to push the wrench very hard Hold the wrench with a CAUTION force just sufficient to counteract the impact force Repair 6 Confirm the tightening torque modification and inspection of Hitachi Power Tools must be carried out by a Hitachi Authorized Service Center The following factors contribute to a reduction of the tightening torque So This Parts List will be helpful if presented with the tool to the Hitachi confirm the actual tightening torque needed by screwing up some bolts Authorized before the job with a hand torque wrench Factors affecting the tightening In the operation and maintenance of power tools the safety regulations torque are as follows ID Voltage Service Center when requesting repair or other maintenance and standards prescribed in each country must be observed MODIFICATIONS When the discharge margin is reached voltage decreases and tightening Hitachi torque is lowered incorporate the latest technological advancements 12 Operating time Power Tools are constantly being improved and modified to Accordingly some parts may be changed without prior notice The tightening torque increases when the operating time increases But the tig htening torque does not increase above a certain value even if the tool is Important notice on the batteries for the Hitachi cordless power tools driven for a long time Please always use one of our designated genuine batteries We cannot 13 Diameter of bolt guarantee the safety and performance of our cordless power tool when The tig htening torque differs with the diameter of the bolt Generally a larger used with batteries other than these designated by us or when the diameter bolt requires larger tightening torque battery is disassembled and modified such as disassembly and 4 Tightening conditions replacement of cells or other internal parts The tightening torque differs according tothe torque ratio class and length of bolts evenwhen bolts with the samesize threadsare used The tightening torque also differs according to the condition of the surface of workpiece GUARANTEE through which the bolts are to be tightened When the bolt and nut turn together torque is greatly reduced 15 Using optional parts WR14DBDLIWR18DBDL Weguarantee Hitachi Power Toolsin accordance with statutory country specific regulation This guarantee does not cover defects or damage due to misuse The tightening torque is reduced a little when an extension bar universal abuse or normal wear and tear In case of complaint please send the Power joint or a long socket is used Tool undismantled with the GUARANTEE CERTIFICATE found at the end of this 6 Clearance of the socket WR14DBDLIWR18DBDL Handling instruction to a Hitachi Authorized Service Center A worn or deformed hex or a square holed socket will notg ive an adequate tightness to the fitting between the nut or anvil consequently resulting in NOTE loss of tightening torque Due Using an improper socket which does not match to the bolt will resu It in an specifications herein are subject to change without prior notice to HITACHI S continuing program of reserch and development the insufficient tightening torque 7 Tightening torque varies depending on the battery s charge level MAINTENANCE AND INSPECTION 1 Inspecting the driver bit WH14DBDL WH18DBDL Using a broken bit or one with a worn out tip is dangerous because the bit can slip Replace it 2 Inspecting thesocket WR14DBDL WR18DBDL A worn or deformed hex or a sq uare h oled socket will notg ive an adequate tightness to the fitting between the nut or anvil consequently resulting in loss of tightening torque Pay attention towear of asocket holes periodically and replace with a new one if needed 3 Inspecting the mounting screws Regularly inspect all mounting screws and ensure that they are properly tightened Should any of thescrewsbe loose retighten them immediately Failure to do so may resu It in serious hazard 4 Maintenance of the motor The motor unit winding is the very heart ofthe power tool Exercise due care to ensure the winding does not become damaged antfor wet with oil or water 5 Cleaning of the outside When the impact driver is stained wipe with a soft dry cloth or a cloth moistened with soapy water Do not use chloric solvents gasoline or paint thinner as they melt plastics 12

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