Hofmann ATC 900, Руководство по обслуживанию

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CTC-CEN Service Manual 07-13 Rev.E
62

Plug the air pipes to the valve.

Bolt the valve to the support.

Mount the connecting rod and install the split pin and the self locking nut.

Plug the machine to the air pressure and to power supply.

Make sure that the rod adjustment is correct. If it not correct make the adjustment following the paragraph.

Adjust the raising and lowering speed of the cylinder by adjusting
the two adjustable exhaust valve.

Check if the machine works fine again.

Mount the cover.
7.17 MH CYLINDER # EAA0345G61A: CHECK AND REPLACEMENT

: 30’

: End key 13mm.

: Defective cylinder may cause the following malfunction:
1.
Air leaking.
2. Low bead pushing pressure
TO CHECK THE MH CYLINDER:

Turn the machine on

Lower the cylinder and check if it is leaking from the top flange.

Raise the cylinder and check if it leaks air from the lower flange.

Lower the cylinder and remove the hose from the lower fitting.

Keep pressing the control valve

If the air comes out from the fitting the piston seal is defective.

If the air comes out from the hose, the leaking is caused by the control valve.

Make the same operation with the rear side.
TO REPLACE THE CYLINDER:

Disconnect ait pressure from the machine

Unplug the air hoses from the cylinder.

Remove the bead depressor.

Loosen the four screws and remove the cylinder.