CHAPTER 7: OPERATION 7-16
ALPHA 538/552
8. RETRACTION DEVICE
It is strictly prohibited to use the retraction system before the bar feeder is anchored to the
ground. Please read the safety instructions provided at the beginning of this manual
before handling the following devices.
Before handling the retraction mechanism, check to see that the interface cables between
the spindle and the bar feeder are long enough.
8.1. Description
When a lathe is equipped with a bar feeder, certain elements (motors, spindle reduction tubes, etc.)
become inaccessible, and sometimes it is difficult, or even impossible, to proceed with their maintenance.
To facilitate these tasks, the ALPHA 538/552 can be equipped with a retraction system, which allows the
operator to move the bar feeder. The rigidity of the system guarantees a perfect alignment when the bar
feeder is in working position.
A safety switch impedes any handling as long as the bar feeder is not in operational position.
8.2. Operation
Conditions: - Bar feeder in MAN or STOP mode.
- No bar between the bar feeder and the lathe
- Pusher inside the bar feeder
- The area around the bar feeder must be clear
Procedure:
1. Loosen the 10 lock screws (A) on the sides of the stands.
2. Loosen and remove the 4 lock screws (B) behind the stands.
3. Pull the bar feeder back.
4. After completing the maintenance operations, bring the bar feeder back in working position, lock
the side screws (A) and the screws (B). (max 75 Nm).
A
A
B
B
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