Hofmann ATC 900 - 7.11 Bead breaker cylinders # EAA0363 G62 A; EAA0351 G77 A: check and replacement

CTC-CEN Service Manual 07-13 Rev.E
52
 Disconnect the air pipe from the valve.
 Remove the round knob and the fixing nut.
 Remove the 3 screws that secure the valve and the bracket together. Then disconnect the other 2 air pipes.
 Mount the new valve.
 Connect the pipes.
 Secure the valve with the nut and mount its knob.
 Plug in the air pressure and power supply.
 Check if the machine works fine again.
7.11 BEAD BREAKER CYLINDERS # EAA0363G62A / EAA0351G77A:
CHECK AND REPLACEMENT
 : 30’ each one
 : 24 and 13mm end key.
 : Defective bead breaker cylinder may cause the following malfunction:
1. Air leaking from the cylinder.
2. Air leaking from the control valve.
3. The bead breaker arm will not detach the tire bead.
4. The bead breaker arm goes down itself when machine remain not operated for some time.
TO CHECK THE EXTERNAL AIR LEAKING
 Position the cylinder where it leaks air.