START UP MANUAL
17
QUICK LOAD SERVO S2
5.
PUTTING THE LATHE INTO OPERATION
5.1
Spindle reduction tubes
The efficiency of the bar guiding while in rotation in the lathe is determined by the
clearance between the spindle reduction tube and the rotating bar. The greater the
clearance is, the more frequent the vibrations are.
Using reduction tubes helps to decrease the clearance. Guiding is thus improved, but, in
addition, the insertion of the bar into the clamping device of the lathe is made much
easier.
The inside diameter of the reduction tubes should be chosen in terms of the diameter of
the bar (diameter of the bar + 1 mm), but should always be larger than that of the
diameter of the feeding pusher.
To guarantee that the small feeding pushers (dia. 6.35 and dia. 12 mm) do not come into
contact, at any time, with the walls of the reduction tube, it is recommended to retract
them from the spindle before the bar begins to rotate (see Chapter 7, section 5).
There are two possibilities for inserting and removing the spindle reductions. The first
consists in moving the bar feed system (see Chapter 6, section 4), and the second one in
passing the reduction tube through the bar feed system. To facilitate clearance, set the bar
stock diameter at 120 mm (settings for Part Setup).
Spindle reduction tubes are available from LNS, upon request.
Summary of Contents for QUICK LOAD SERVO S2
Page 1: ...ENG MADE IN USA ...
