Manual Hitachi WH18DBEL (page 13 of 76) (English, German, Dutch, French, Italian, Portuguese, Spanish)

572127

Zoom out

Zoom in

1/76

English

CAUTION

⅜ When using the hook, hang up the power tool firmly

not to drop accidentally.

If the power tool is dropped, it may lead to an accident.

⅜ When carrying the power tool with hooked to your

waist belt, do not fit any bit to the tip of power tool. If

the sharp bit such as drill is fitted to the power tool

when carrying it with hooked to your waist belt, you

will be injured.

⅜ Install securely the hook. Unless the hook is securely

installed, it may cause an injury while using.

(1) Removing the hook.

Remove the screws fixing the hook with Philips screw

driver. (Fig. 7)

(2) Replacing the hook and tightening the screws.

Install securely the hook in the groove of power tool

and tighten the screws to fix the hook firmly. (Fig. 8)

4. Using the light

Pull the trigger switch to light up the light. The light

keeps on lighting while the trigger switch is being

pulled. The light goes out after releasing the trigger

switch. (Fig.

(The light automatically goes out 10 seconds after

releasing the trigger switch.)

CAUTION

Do not expose directly your eye to the light by looking

into the light.

If your eye is continuously exposed to the light, your

eye will be hurt.

5. Tightening and loosening screws

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.

6. Tightening and loosening bolts

A hex. socket matching the bolt or nut must first be

selected. Then mount the socket on the anvil, and

grip the nut to be tightened with the hex. socket.

Holding the tool in line with the bolt, press the power

switch to impact the nut for several seconds.

If the nut is only loosely fitted to the bolt, the bolt

may turn with the nut, therefore mistaking proper

tightening. In this case, stop impact on the nut and

hold the bolt head with a wrench before restarting

impact, or manually tighten the bolt and nut to prevent

them slipping.

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 metal parts, 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 operaton time. Use the

correct operating time for the bolt.

5. Holding the tool

Hold the tool firmly with both hands. In this case hold

the tool in line with the screw or bolt.

It is not necessary to push the tool very hard. Hold

the tool 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) Tightening torque varies, depending on the battery’s

charge level.

MAINTENANCE AND INSPECTION

1. Inspecting the driver bit

Using a broken bit or one with a worn out tip is

dangerous because the bit can slip. Replace it.

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 may result in serious hazard.

01Eng_WH14DBEL_WE 5/30/13, 9:2913

Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

Forumrules

To achieve meaningful questions, we apply the following rules:

First, read the manual;
Check if your question has been asked previously;
Try to ask your question as clearly as possible;
Did you already try to solve the problem? Please mention this;
Is your problem solved by a visitor then let him/her know in this forum;
To give a response to a question or answer, do not use this form but click on the button 'reply to this question';
Your question will be posted here and emailed to our subscribers. Therefore, avoid filling in personal details.

new questions and answers
new manuals

You will receive an email to register for one or both of the options.

Get your user manual by e-mail

Enter your email address to receive the manual of Hitachi WH18DBEL in the language / languages: English, German, Dutch, French, Italian, Portuguese, Spanish as an attachment in your email.

The manual is 2,44 mb in size.

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.

Info

Hitachi WH18DBEL Manual

Product: