78946

Hitachi WH 12 DAF Manual

11
Zoom out
Zoom in
Previous page
1/74
Next page
English
10
5. Number of screws tightenings possible
Please refer to the table below for the number of screw
tightened possible with one charge.
For WH12DAF (EB1214L)
These values may vary slightly, according to
surrounding temperature and battery characteristics.
NOTE
The use of the battery EB1222HL in a cold condition
(below 0 degree Centigrade) can sometimes result in
the weakened tightening torque and reduced amount
of work. This, however, is a temporary phenomenon,
and returns to normal when the battery warms up.
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 hammer case, 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. Tightening torque
Refer to Fig. 13 for the tightening torque of bolts
(according to size), under the conditions shown in Fig.
14. Please use this example as a general reference,
as tightening torque will vary according to tightening
conditions.
NOTE
⅜ If a long striking time is used, screws will be strongly
tightened. This may cause the screw to break, or may
damage the tip of the bit.
⅜ If the unit is held at an angle to the screw being
tightened, the head of the screw may be damaged, or
the specified torque may not be transmitted to the
screw. Always keep the unit and the screw being
tightened in a straight line.
4. 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.
Screw used No. of tightenings
Wood screw ø4 × 50
Approx. 230
(Soft wood)
Machine screw M8 × 16 Approx. 730
Tightening torque
Tightening torque
Tightening torque
Tightening time: sec
(Steel plate thickness
t = 10 mm)
Tightening time: sec
(Steel plate thickness
t = 10 mm)
Tightening time: sec
(Steel plate thickness
t = 10 mm)
Fig. 13
100
80
60
40
20
0
0123
1000
800
600
400
200
0
kgf
•
cm
N
•
m
M8 × 30
100
80
60
40
20
0
0123
1000
800
600
400
200
0
kgf
•
cm
N
•
m
M10 × 30
High tension bolt
Ordinary bolt
High tension bolt
Ordinary bolt
High tension bolt
Ordinary bolt
… 11 …


Need help? Post your question in this forum.

Forumrules


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:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Hitachi WH 12 DAF at:


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 WH 12 DAF in the language / languages: English, German, Dutch, French, Italian, Portuguese, Spanish as an attachment in your email.

The manual is 0,84 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