Hofmann ATC 900 - 7.5 Vertical locking cylinder # EAA0344 G32 A: check and replacement

CTC-CEN Service Manual 07-13 Rev.E
45
 If there will not be any leaking from the fitting and pipe, but the air
is getting out from the silencer of the other fitting, the valve has an
internal leaking and must be replaced.
TO REPLACE THE VALVE:
 Disconnect the air pipes.
 Remove the four screws to have the get the valve dismounted.
 Mount the new valve.
 Connect the air pipes.
 Plug the machine to the air pressure and to the power supply.
 Check if the machine works fine.
 Mount the foot pedal assembly cover.
7.5 VERTICAL LOCKING CYLINDER # EAA0344G32A: CHECK AND REPLACEMENT
 : 1h
 : Allen key 4,5 and 6mm, 17mm end key, 13mm tube type key
 : Defective vertical locking cylinders may cause the following malfunction:
1. Air leaking from the cylinder.
2. The vertical rod does not remain blocked..
TO CHECK THE CYLINDER:
 Remove the cylinder cover.
 Press the yellow button of the valve to block the vertical rod of the operating arm.
 Check if the cylinder is leaking air in between cylinder liner and seal.