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WR18DL
Инструкция по эксплуатации Страница: 9

Hitachi WR18DL [9/94] English

English

(3) Using as an auxiliary light

(a) Press the switch H to turn off the light.

If forgotten, the light will turn off automatically

after 15 minutes.

(b) The direction of the light can be adjusted within

the range of hook positions 1 – 5 (Fig. 9).

䡬 Lighting time

AAAA manganese batteries: approx. 15 hrs.

AAAA alkali batteries: approx. 30 hrs.

CAUTION

Do not look directly into the light.

Such actions could result in eye injury.

(4) Replacing the batteries

(a) Loosen the hook screw J with a phillips-head

screwdriver (No. 1) I (Fig. 10).

Remove the hook cover L by pushing in the

direction of the arrow (Fig. 11).

(b) Remove the old batteries and insert the new

batteries. Align with the hook indications and

position the plus (+) and minus (–) terminals

correctly (Fig. 12).

with the protuberance of the hook cover L, press

the hook cover L in the direction opposite to that

of the arrow K shown in Fig. 11 and then tighten

the screw.

Use commercially available AAAA batteries

(1.5 V) O.

NOTE

Do not tighten the screw excessively. Such action

could strip the screw threads.

CAUTION

䡬 Failure to observe the following can result in battery

leakage, rust or malfunction.

Position the plus (+) and minus (–) terminals correctly.

Replace both batteries at the same time. Do not mix

old and new batteries.

Remove exhausted batteries from the hook

immediately.

䡬 Do not discard batteries together with normal trash

and do not throw batteries into fire.

䡬 Store batteries out of the reach of children.

䡬 Use batteries correctly in accordance with the battery

specifications and indications.

2. Check the rotational direction

The bit rotates clockwise (viewed from the rear side)

by pushing the R-side of the push button C.

The L-side of the push button is pushed to turn the bit

counterclockwise (See Fig. 4) (The

and

marks

are provided on the body).

CAUTION

The push button cannot be switched while the impact

driver is turning. To switch the push button, stop the

impact driver, then set the push button.

3. Switch operation

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

When the trigger is released, the tool stops.

䡬 The rotational speed 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.

4. Tightening and loosening screws (WH14DL, WH18DL)

Install the bit that matches the screw, line up the bit in

the grooves of the head of the screw, then tighten it.

Push the impact driver just enough to keep the bit

fitting the head of the screw.

CAUTION

Applying the impact driver for too long tightens the

screw too much and can break it.

Tightening a screw with the impact driver at an angle

to that screw can damage the head of the screw and

the proper force will not be transmitted to the screw.

Tighten with this impact driver lined up straight with

the screw.

OPERATIONAL CAUTIONS

1. Resting the unit after continuous work

After use for continuous bolt-tightening work, rest

the unit for 15 minutes or so when replacing the

battery. The temperature of the motor, switch, etc.,

will rise if the work is started again immediately after

battery replacement, eventually resulting in burnout.

NOTE

Do not touch the protector, as it gets very hot during

continuous work.

2. Cautions on use of the speed control switch

This switch has a built-in, electronic circuit which

steplessly varies the rotation speed. Consequently,

when the switch trigger is pulled only slightly (low

speed rotation) and the motor is stopped while

continuously driving in screws, the components of the

electronic circuit parts may overheat and be damaged.

3. Use a tightening time suitable for the screw

The appropriate torque for a screw differs according to

the material and size of the screw, and the material

being screwed etc., so please use a tightening time

suitable for the screw. In particular, if a long tightening

time is used in the case of screws smaller than M8, there

is a danger of the screw breaking, so please confirm the

tightening time and the tightening torque beforehand.

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 operation 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.

Содержание

Похожие устройства

English 3 Using as an auxiliary light a Press the switch to turn off the light If forgotten the light will turn off automatically after 15 minutes b The direction of the light can be adjusted within the range of hook positions 1 5 Fig 9 O Lighting time AAAA manganese batteries approx 15 hrs AAAA alkali batteries approx 30 hrs CAUTION Do not look directly into the light Such actions could result in eye injury 4 Replacing the batteries a Loosen the hook screw with a phillips head screwdriver No 1 Fig 10 Remove the hook cover by pushing in the direction of the arrow Fig 11 b Remove the old batteries and insert the new batteries Align with the hook indications and position the plus and minus terminals correctly Fig 12 c Align the indentation in the hook main body with the protuberance of the hook cover press the hook cover in the direction opposite to that of the arrow show n i n Fig 11 and then tighten the screw Use commercially available AAAA batteries 1 5 V NOTE Do not tighten the screw excessively Such action could strip the screw threads CAUTION O Failure to observe the following can result in battery leakage rust or malfunction Position the plus and minus terminals correctly Replace both batteries at the same time Do not mix old and new batteries Remove exhausted batteries from the hook immediately O Do not discard batteries together with normal trash and do not throw batteries into fire O Store batteries out of the reach of children O Use batteries correctly in accordance with the battery specificationsand indications 2 Check the rotational direction The bit rotates clockwise viewed from the rear side by pushing the R side of the push button The L sideof the push button is pushed to turn the bit counterclockwise See Fig 4 The CD and R marks are provided on the body CAUTION The push button cannot be switched while the impact driver is turning To switch the push button stop the impact driver then set the push button 3 Switch operation O When the trigger switch is depressed the tool rotates When the trigger is released the tool stops O The rotational speed 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 4 Tightening and loosening screw s W H14DL W H18DL Install the bit that matches the screw lineup the bit in the grooves of the head of the screw then tighten it Push the impact driver just enough to keep the bit fitting the head of the screw CAUTION Applying the impact driver for too long tightens the screw too much and can break it Tightening a screw with the impact driver at an angle to that screw can damage the head of the screw and the proper force will not be transmitted to the screw Tighten with this impact driver lined up straight with the screw OPERATIONAL CAUTIONS 1 Resting the unit after continuous work After use for continuous bolt tightening work rest the unit for 15 minutes or so when replacing the battery The temperature of the motor switch etc will rise if the work is started again immediately after battery replacement eventually resulting in burnout NOTE Do not touch the protector as it gets very hot during continuous work 2 Cautions on use of the speed control switch This switch has a built in electronic circuit which steplessly varies the rotation speed Consequently when the switch trigger is pulled only slightly low speed rotation and the motor is stopped while continuously driving in screws the components of the electronic circuit parts may overheat and be dam aged 3 U se a tightening time suitable for the screw The appropriate torque for a screw differs according to the material and size of the screw and the material being screwed etc so please use a tightening time suitable for the screw In particular if a long tightening time is used in thecaseof screwssm aller than M8 there is a danger of the screw breaking so please confirm the tightening timeand thetightening torque beforehand 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 Thetightening torque increases in proportion to the operation 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 o

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