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4.12
Thread tapping
19
16
17
25
Img.4-7:
Thread tapping
Item
Designation
Cycle end limit switch
22
Turning direction reversal switch
23
Depth stop
25
Activation of fine adjustment of spindle
7
sleeve
Set the operating mode selector switch (19) to thread tapping.
Set the depth stop (25) to the desired depth.
Select the lowest speed.
Switch the rotation of the spindle on. Note the correct direction of rotation (16) or (17).
Move the sleeve downward with the sleeve lever until the machine tap cams in the work
piece.
The machine tap turns into the workpiece. As soon as the pre-set depth is attained, the spindle
reverses the direction of rotation at the switch point (23). The machine tap turns out of the
workpiece. When the sleeve is completely entered up to the switch point (22) the rotation of the
spindle is stopped. Then it is possible to proceed another threading operation.
ATTENTION!
Before proceeding another threading cycle, the sleeve must be completely entered in order to
trigger the switch point (22).
The activation of fine adjustment of spindle sleeve (7) must be disabled.
EN
MB4
74
22
23
Changing the speed range on page 70
Translation of original instruction
7
Item
Designation
Operating mode selector switch
19
Spindle rotation direction push button
16
17
Version 1.0.1 - 2021-11-18
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