Direction Of Rotation; Running Operation; Threads And Feeds; Change Gear Gearbox - Holzmann ED300ECO Mode D'emploi

18.4.2 Direction of rotation

The selector switch rotating direction (1) is used to shift the direction of
rotation.
Switch the selector switch rotating direction to position "L", for counterclockwise
spindle direction.
Switch the selector switch rotating direction to position "R", for clockwise
spindle direction.

18.4.3 Running operation

Only use chucks recommended by Holzmann Maschinen.
When threading or automatic feed is not in use, the selector switch feed direction should be in the
neutral position to ensure disconnection of the lead screw.
18.5

Threads and feeds

18.5.1 Change gear gearbox

For optimum adaptation to the respective requirements for threading, the change-gear gearbox
must be set according to the data scale. A large number of feeds and most thread pitches can be
set with the factory fitted change gears. For special feeds or thread pitches, the required change
gears must be changed.
Switch off the machine before replacing or changing the position of the change
wheels and secure it against unauthorised or unintentional recommissioning.
The change gears for the feed are mounted on a change gear shear or directly on the lead screw
and the feed gear.
In order to obtain the desired thread according to the table, the corresponding gearwheel
combinations must be mounted beforehand:

18.5.2 Manual feed

HOLZMANN MASCHINEN GmbH
WARNING
1. Disconnect the machine from the power source and
secure it against unintentional start-up.
2. Loose the screws and remove the cover on the left side
of the headstock.
3. Loosen the nut (a) and move the swing frame (b) out
of the way.
4. Change the gear wheels (A, B, C, D) according to the
feed or thread table.
5. Position the swing frame so that the large gear wheel
meshes with the smaller gear wheels. Then tighten.
Make sure that there is a clearance of 0.005 - 0.007
mm between the gears. (Adjusting the gears too tightly
will result in excessive noise and increased wear.)
6. Remount the cover and reconnect the machine to the
power source.
The manual feed of the longitudinal slide is carried
•
out by means of handwheel (1).
The manual feed of the cross slide is carried out by
•
means of handwheel (2).
The manual feed of the top slide is carried out by
•
means of handwheel (3).
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ED300ECO