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DV18V
Инструкция по эксплуатации Страница: 7

Hitachi DV18V [7/42] English

English

8. IMPACT to ROTATION changeover (Fig. 7)

Shift the change lever between the right and left

positions to switch easily between IMPACT (rotation

and impact) and ROTATION (rotation only), respectively.

To bore holes in hard materials such as concrete,

stone and tiles, shift the change lever to the right-

hand position (as indicated by the

mark).

The drill bit operates by the combined actions of

impact and rotation.

To bore holes in metal, wood and plastic, shift the

change lever to the left-hand position (as indicated

by the

mark). The drill bit operates by rotational

action only, as in the case of a conventional electric

drill.

CAUTION

䡬 Do not use the Impact Drill in the IMPACT function

if the material can be bored by rotation only.

Such action will not only reduce drill efficiency,

but may also damage the drill tip.

䡬 Operating the Impact Drill with the change lever

in mid-position may result in damage. When

switching, make sure that you shift the change

lever to the correct position.

9. High-speed/Low-speed changeover

Prior to changing speed, ensure that the switch is in

the OFF position, and the drill has come to a complete

stop.

To change speed, rotate the gear shift dial as indicated

by the arrow in Fig. 8. The numeral “1” engraved on

the drill body denotes low speed, the numeral “2”

denotes high speed.

If it is hard to turn the gear shift dial, turn the chuck

slightly in either direction and then turn the gear shift

dial again.

HOW TO USE

1. Switch operation

䡬 When the trigger is depressed, the tool rotates. When

the trigger is released, the tool stops.

䡬 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.

䡬 The desired rotation speed can be pre-selected with

the speed control dial.

Turn the speed control dial clockwise for higher speed

and counterclockwise for lower speed. (Fig. 9)

䡬 Pulling the trigger and pushing the stopper, it keeps

the switched-on condition which is convenient for

continuous running. When switching off, the stopper

can be disconnected by pulling the trigger again.

CAUTION

If the L-side of push button is pressed for reverse bit

rotation, the stopper cannot be used.

2. Drilling

䡬 When drilling, start the drill slowly, and gradually

increasing speed as you drill.

䡬 Always apply pressure in a straight line with the bit.

Use enough pressure to keep drilling, but do not

push hard enough to stall the motor or deflect the bit.

䡬 To minimize stalling or breaking through the material,

reduce pressure on drill and ease the bit through the

last part of the hole.

䡬 If the drill stalls, release the trigger immediately,

remove the bit from the work and start again. Do not

click the trigger on and off in an attempt to start a

stalled drill. This can damage the drill.

䡬 The larger the drill bit diameter, the larger the reactive

force on your arm.

Be careful not to lose control of the drill because of

this reactive force.

To maintain firm control, establish a good foothold,

use side handle, hold the drill tightly with both hands,

and ensure that the drill is vertical to the material

being drilled.

MAINTENANCE AND INSPECTION

1. Inspecting the drill bits

Since use of an abraded drill bits will cause motor

malfunctioning and degraded efficiency, replace the

drill bits with a new one or resharpening without

delay when 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

For your continued safety and electrical shock

protection, carbon brush inspection and replacement

on this tool should ONLY be performed by a Hitachi

Authorized Service Center.

5. 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.

MODIFICATION

Hitachi Power Tools are constantly being improved

and modified to incorporate the latest technological

advancements.

Accordingly, some parts may be changed without

prior notice.

NOTE

Due to HITACHI’s continuing program of research and

development, the specifications herein are subject to

change without prior notice.

Содержание

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English 8 IM PACT to ROTATION changeover Rg 7 Shift the change lever between the right and left positions to switch easily between IMPACT rotation and impact and ROTATION rotation only respectively To bore holes in hard materials such as concrete stone and tiles shift the change lever to the right hand position as indicated by the T mark The drill bit operates by the combined actions of impact and rotation To bore holes in metal wood and plastic shift the change lever to the left hand position as indicated by the 2 mark The drill bit operates by rotational action only as in the case of a conventional electric drill CAUTION O Do not use the Impact Drill in the IMPACT function if the material can be bored by rotation only Such action will not only reduce drill efficiency but may also damage the drill tip O Operating the Impact Drill with the change lever in mid position may result in damage When switching make sure that you shift the change lever to the correct position 9 High speed Low speed changeover Prior to changing speed ensure that the switch is in theOFFposition and the drill hascometo acomplete stop To change speed rotate the gear shift dial as indicated by the arrow in Fig 8 The numeral 1 engraved on the drill body denotes low speed the numeral 2 denotes high speed If it is hard to turn the gear shift dial turn the chuck slightly in either direction and then turn the gear shift dial again HOW TO USE 1 Switch operation O When thetrigger is depressed the tool rotates When the trigger is released the tool stops O The rotational speed of the drill can be controlled by varying the amount that the trigger switch is pulled Speed is low when thetrigger switch is pulled slightly and increases as the trigger switch is pulled more O The desired rotation speed can be pre selected with the speed control dial Turn the speed control dial dockwisefor higher speed and counterclockwise for lower speed Rg 9 O Pulling the trigger and pushing the stopper it keeps the switched on condition which is convenient for continuous running When switching off the stopper can be disconnected by pulling the trigger again CAUTION If the L side of push button is pressed for reverse bit rotation the stopper cannot be used 2 Drilling O When drilling start the drill slowly and gradually increasing speed as you drill O Always apply pressure in a straight line with the bit Use enough pressure to keep drilling but do not push hard enough to stall the motor or deflect the bit O To minimize stalling or breaking through thematerial reduce pressure on drill and ease the bit through the last part of the hole O If the drill stalls release the trigger immediately remove the bit from the work and start again Do not click the trigger on and off in an attempt to start a stalled drill This can damage the drill O The larger the drill bit diameter the larger the reactive force on your arm Be careful not to lose control of the drill because of this reactive force To maintain firm control establish a good foothold use side handle hold the drill tightly with both hands and ensure that the drill is vertical to the material being drilled MAINTENANCE AND INSPECTION 1 I nspect Ing the drill bits Since use of an abraded drill bits will cause motor malfunctioning and degraded efficiency replace the drill bits with a new one or resharpening without delay when 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 I nspect Ing the catbon brushes For your continued safety and electrical shock protection carbon brush inspection and replacement on this tool should ONLY be performed by a Hitachi Authorized Service Center 5 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 MODIFICATION Hitachi Power Tools are constantly being improved and modified to incorporate the latest technological advancem ents Accordingly some parts may be changed without prior notice NOTE Due to HITACHI S continuing program of research and development the specifications herein are subject to change without prior notice 6

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