ManRoland 700 Air pressure inssuficient

Hello, i have a problem with air pressure, when sheets gets in the machine in the same time impression hits on, after that the machine stops immediately and cannot be moved unless the compressor is turned off, this is happening on all units but every single time is different sometimes on first unit, second, third… How can i solve this problem? Thanks in advance.

 

Possible causes:
1. Small air tank.
2. Thin pipe to the machine. It should be 12mm inside.
3. Not powerful enough compressor.
4. A lot of air loss in the machine itself.
Monitor the pressure on the inlet pressure gauge. It should not be less than 8bar

 

Thank you a lot.

 

It could be the pressure sensor, check