Table of contents
3QLCLM
Edition: 04/2014
30
Attention:
Do not allow the outer rim of the power chuck to
rest on the mounting flange.
Threaded bores must be drilled in the mounting flange for
attachment of balancing weights which, depending on the
size of the power chuck to be mounted, should be
be-tween M8 and M16 with a thread depth of max. 2x0.
The outer diameter of the mounting flange must be relieved
so that it is approx. 1 mm less than the register diameter
for the power chuck.
Correct!
6.1.3 Fitting and alignment of the draw tube
The actuating cylinder and the power chuck are connected by a draw tube.
Particular attention has to be paid to the following points when fitting a draw tube:
•
The draw tube dimensions have to be adequate for the loads imposed.
•
The draw tube must be turned all over to avoid imbalance.
•
Manufacture the draw tube from a material with a tensile strength of at least 1000N/mm
2
,
e.g. 42CrMo4V.
•
The draw tube has to be balanced dynamically in two planes, so that the residual imbalance
in each plane is not equivalent to more than a mass of 5g at the outer diameter.
Attention:
Make sure that the draw tube is in alignment! The draw tube is in alignment when both
threads are concentric! Skew threads are not permissible!
The extreme right position of the chuck piston of the chuck must always be determined by the
actuating cylinder and not by the power chuck itself.
The piston of the actuating cylinder there-fore has to be moved into the extreme right position
before mounting the power chuck!
