3.3 Pneumatic connections

The connection of the pneumatic system to the net of the customer

is carried out connecting a flexible pipe with internal diameter min.

12 mm, equipped with appropriate end for fixing, directly at the entry

of the filter/lubricator group .

ATTENTION : After having carried out the connection of the pneumatic

system, it has to be checked the correct functioning of

the same system. To do this, before putting in pressure

the circuit, make sure that :

- All protections are correctly installed and functioning.

- There are NO tools mounted on the spindles .

- There are NO pieces, work items or other materials

on the work benches.

At this moment it is possible to put the circuit in pressure.

Before making some test cycles for the movements of the pistons, it has

to be checked that there are no losses of air and that the manometer

placed on the filter/lubricator group indicates a pressure between 5

and 7 bar.

Besides, check that the tank of the oil to lubricate the air is

filled up to the level indicated on its covering.

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4. Functioning and adjustments

Introduction

The use of the machine must be allowed exclusively to authorised and trained staff, who examined this Manual of Instructions AND HAS WELL UNDERSTOOD ITS CONTENTS .

The instructions for the functioning of the machine are indicated

on the enclosed electric scheme.

All control devices are placed on the electric box.

It is forbidden to employ the machine in a different way from

what explained in this Manual of Instructions.

It is as well forbidden any modification of the same machine.

In case of danger, use the emergency stop push-button.

To start again the machine, after having eliminated the sources of the

danger, unlock the same push-button and prepare for the use.

4.1 Functioning

This machine can operate both with automatic and manual working cycles.

AUTOMATIC CYCLE

* After having carried out all the adjustments, the operator can start working.

* Bring the MAIN SWITCH, that is on the machine’s side, in pos.[1]. Press the push-button AUXILIARIES ( # 15, fig. 4.8 ) to start them up.

The selector ( # 10, fig. 4.8 ) must be in position [AUTO].

Using selector ( # 11, fig. 4.8 ) choose the required drilling cycle:

- (1) All the drilling groups work at the same time.

- (2) First vertical, then lateral and horizontal groups.

- (3) First vertical, then horizontal and last lateral groups.

Start the motors [ M1 … … … M9 ] required for the job, operating on the corresponding push-buttons ( fig. 4.8 ).

* The worker places a pile of pieces inside the magazine.

* The working starts when the operator presses the push-button START, that is placed on the mobile control board.

* Once the work is completed, that piece is automatically discharged and a new one is loaded until there are pieces in the magazine.

* When it is required to use the straightening cylinders, the selector ( # 12, fig. 4.8 ) must be in position [ON].

* Press push-button STAND-BY ( # 13 ) when the work has to be stopped for a while without having to start it up anew from the beginning.

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MANUAL CYCLE

* After having carried out all the adjustments, the operator has to open up to its maximum the loader/magazine.

* Start the motors required for the work, operating on corresponding push-buttons ( fig. 4.8 ).

The selector ( # 10, fig. 4.8 ) must be in pos. [MAN].

* The worker places one piece on the supports of the bench and presses the push-button LOCKING, that is placed on the mobile control board.

* When the piece has been locked - while keeping always pressed the push-button LOCKING - press the push-button START, which is placed on the mobile control board.

* When the working is done, the piece is automatically released and it can be removed, to place (by hand) a new one in position.