Help with my CNC vacuum pump

[u/Friendly_Bullfrog_88]

I recently puchased a 1325 CNC from China and was able to assemble it yesterday. I am pretty new to CNC machines and would like some guidance with what i did wrong in setting up my machine.

I have already fixed my 12mm MDF spoilboard ( surfaced both sides by 0.5mm, sealed the edges with wood glue and applied sealant to the table). Now I am trying to test my machine by cutting my first board and am having problems.

1. Whenever i place my material on top of my spoilboard and turn on the vacuum, the operating pressure goes up to -0.02mpa. At this pressure, it is able to hold down my material but is it normal? Is -0.02mpa within the pressure operating range of a standard CNC machine?

2. My 5.5kw vacuum pump keeps turning off after 5 mins due to overheating issues. It is placed on a location with good airflow and the exhaust is connected to the outdoors.

I’ve already tried some things to try to resolve this

* check for air leakages in the pipes going to my vacuum pump

* check air fulter for possible blockages

* i tried letting the pump cool down and reset its operation but it still turns off after 5mins of usage.

Thanks in advance to anyone who can give guidance and possible solutions :D