Automatic Feeds And Threas Pitches; Thread Dial Indicator (For Resuming The Pitch) - HOLZMANN MASCHINEN ED300ECO Instrucciones De Servicio

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18.5.3 Automatic feeds and threas pitches

Disconnect the machine from the mains and wait until the machine has
come to a complete standstill before making any changes to the switching
positions of the selector switches. If necessary, turn the jaw chuck by hand
to assist in engaging a switch.
Cutting threads:
The machine can be used to cut metric threads. With the selector switch feed direction (1) on the
headstock, you can set the direction of rotation for threading (left / right thread). You can set the
pitch with the change gears. The shift lever tapping (lock nut) (2) must always be closed during
the thread cutting process.
The metric threads range from 0.5 to 2.5 mm, 9 steps are available.

18.5.4 Thread dial indicator (for resuming the pitch)

Do not engage the lock nut if the lead screw rotates at more than 200 revolutions per
minute or if the carriage lock is locked, otherwise damage may be caused to the
bearings or the shear pin of the spindle may break!
On the lower end of the thread dial indicator shaft there are several change gears with different
numbers of teeth to be able to turn metric threads with different thread pitches. The change gear
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NOTICE
NOTICE
The thread dial indicator (1) can also be used for cutting metric
threads. The thread dial indicator (to resume the pitch) is located
on the right of the apron.
The thread dial indicator has an important function. It indicates the
correct moment to engage the " shift lever tapping (lock nut)" (2),
so that the tool takes up the same turn again at each step.
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The feed spindle is switched on via the selector
switch feed direction (1) on the headstock and the
shift lever tapping (lock nut) (2).
Move the selector levers up or down according to
the symbols
Use the change gears to set the desired feed rate
or thread pitch
The selectable feed rates for longitudinal feed
range from 0.009375 to 0.04 mm/r.
Use the tables on the side of the housing of the
gearbox to set the desired feed rate.
OPERATION
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ED300ECO
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