Bosch 0 607 452 603 Manual page 20

OBJ_BUCH-220-001.book Page 20 Tuesday, August 8, 2006 9:41 AM
Setting the Torque
The tightening torque is dependent on the spring pre-
tension of the shut-off clutch. The shut-off clutch
responds in right as well as left rotation when the
torque setting is reached.
For setting the individual tightening torques, use only
the adjustment tool 19 provided.
3
11
Turn the protective sleeve 3 until a slot is visible in the
housing. Use an open-end wrench to turn the tool bit
holder 11 slowly. When a small indentation (adjusting
dial 20) is visible in the clutch, insert the adjustment
tool 19 into the indentation and turn it.
20
Turning in the clockwise direction results in a higher
torque, in the counterclockwise direction, a lower
torque.
Remove the adjustment tool 19. Further turn the pro-
tective sleeve 3 until it is felt to lock in place.
Note: The required adjustment is dependent on the
type of threaded connection and can be best deter-
mined by practical trials. Check the trial screwings with
a torque wrench.
Set the torque only in the specified perfor-
mance range, otherwise the shut-off clutch
will no longer respond..
For higher torques, a correspondingly greater
counterforce is necessary. This counterforce can
be better accommodated by using a clamping
device.
20 | English
Adjusting the Angled Drive Head
The angled drive head 1 with tool bit holder 11 can be
continuously adjusted around°. To this end, you can
hold the nutrunner in place in the clamping area 10.
20
19 11
Loosen the lock nut 2 by inserting an appropriate tool
into an opening of the lock nut and turning the lock nut
in the direction of the arrow a (left thread).
Turn the angled drive head 1 in the direction of the
arrow b until the desired working angle is reached, but
not more than once around 360°.
Fix the angled drive head 1 in place in this position by
turning the lock nut 2 in the direction of the arrow c
against the angled drive head. Retighten the lock nut 2
using a tightening torque of about 80 Nm.
19
Screw Counting Port
The tool offers the possibility, via a screw counting port,
of receiving automatically a shut-off signal when the
torque setting is reached. This shut-off signal serves,
for example, for controlling a conveyer belt and docu-
mentation of the bolting actions during fabrication or
controls the bolt feeding for an automatic bolting
machine.
If you want to operate the tool with a screw counting
port, please consult your authorized Bosch customer
service center.
a
1
c
b
2
10
3 609 929 A78 • 8.8.06