Check valves look fine. It's industrial pressure washer. 7.5hp, 240v, 3phase motor diesel burner. Previous owner reports ud 10 years, functioned fine then. ideas?
I 3 phase power, electric motor runs fine.
The motor spins, pressure doesn't rise. tried 6 days ago. 5 10 seconds, ruin pump. Today, pump check valves dry, visible internal pumps cd see.
US $27.44
Pressure Washer Basics
When turning on the unit, does it sound like the motor spins fast then loads up?? Like it is trying to build pressure?? If not water is not getting to the pump. If it is, there could be corrosion in the hose and plugging up the tip. Try removing tip and see if it works..
Is there a holding tank that the fresh water fill before the pump??? If there is there will be a float on it just like a toilet, make sure there is water in there and the float is working..