Polar 76 EM Problems

[endiseki]

Hello
The back gauge is not 5cm long. When I want to cut a business card, I try to manually rotate it to bring it in. I removed the plate under the clamp, but I guess I had to attach it somewhere, I couldn't find it.

 

[andy martin]

Under the front table on top of the electrical cabinet

 

[rspblake]

Sometimes the micro switch plastic carrier breaks and the switch sits on top of the electrical box

 

[Mike Munch]

Polar 76 EM draw on uncoated 20#
Picture attached will show issue we are having.
Seems as if the clamp is releasing before the cut is finished - Making a loud noise and blade raises a bit (followed by the picture as a result)
We just replaced the blade less than a week ago.
We also flushed and replaced the hydraulic fluid.
And advice/suggestions would be appreciated.

 

[andy martin]

It would appear from your photo that main pressure is not being applied. Do you have a pressure gauge to read pressure applied. Also you say there is is bang when knife is on up stroke. If have seen a similar fault, inside the hydraulic ram their are two Chambers, fast fill and main pressure. Main pressure is applied when a spring operated valve inside the ram moves when back pressure builds up. I would suggest you remove the ram strip down and inspect.
Good look

 

[Adil]

Please try to share a video to see what happends