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OPTIMUM
M A S C H I N E N - G E R M A N Y
Version 1.0.1 2014-05-16
Page 140
Original operating instructions
TU2506 | TU2506V | TU2807 | TU2807V
GB
Radial infeed over the handwheel of the cross slide.
Turn the change-over, switch to the right
Switch the machine on and have the second cutting process run.
Repeat this procedure as often as necessary until the depth of thread is achieved.
To check the thread you may use a thread gauge or a workpiece with an internal thread
M30 x 1.0
If the thread is having the exact size, the thread cutting process may be terminated. Now
you may again shift the operating lever of the lead-screw nut in standstill. In this way, the
connection between the lead spindle and the bedslide is interrupted.
Now the toothed wheels for the longitudinal feed are to be mounted again!
3.25
General working advice - coolant
Friction during the cutting process causes high temperatures at the cutting edge of the tool.
The tool should be cooled during the milling process. Cooling the tool with a suitable cooling
lubricant ensures better working results and a longer edge life of the cutting tool.
INFORMATION
Use a water-soluble and non-pollutant emulsion as a cooling agent. This can be acquired from
authorised distributors.
Make sure that the cooling agent is properly retrieved. Respect the environment when dispos-
ing of any lubricants and coolants. Follow the manufacturer’s disposal instructions.