Quiz: CAT CP 2120 Loosing pressure intermittently

[stampedecarwash]

What's wrong with this pump
View attachment IMG_4475_Trim2.mp4
in this video?
The winner gets big hug.

 

[Greg Pack]

check belt tension

 

[stampedecarwash]

check belt tension

Oh man you are good... here is pic when we opened the belt cover...and also pic of brand new belts which is B44

 

[Greg Pack]

Not good, just experienced. What tipped me off what the noticeable decrease in pump RPMs without a pressure spike.