Hofmann ATC 900, Service Manual

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CTC-CEN Service Manual 07-13 Rev.E
44

Remove the upper and lower securing screws and remove the cylinder.

Mount the new cylinder tightening the screws firmly.

Mount the cylinder rod to the operating arm bushing: tighten the rod until it will touch the pin inside of the
bushing, then turn backward of 1 turn.

Install the air pipes.

Connect the air pressure and check if the machine works fine.
7.4 VALVE CONTROL OPENING ARM CYLINDER # EAA0356G96A:
CHECK AND REPLACEMENT

: 30’

: 4mm allen key,8 and 12mm end key, 10mm tube type key.

: Defective valve may cause the following malfunction:
1. Air leaking from the valve.
2. The operating will not open or close and air leaking is reported from the valve
TO CHECK THE VALVE:

Remove the foot pedal assembly cover.

Check if there is any leaking in between valve rod and body.

Position the cylinder where it leaks air.

Disconnect the air pipe where there is not any air pressure.

If the air is getting out from the fitting, the control valve is leaking
air.