Hydraulic lift problem - hot hydraulic fluid

[osborn3]

I have hydraulic system that lift something heavier than 1 tonne. My problem is the hydraulic fluid always get so hot and sometimes because of the heat it could not lift its load (loss power). I tried to increase its flow rate and its worked for now. But it way above the permitted flow rate. I am scared that what I've done could damage the system in future. What should I do?

 

[etudiant]

Can you cool the fluid in your system?
Alternatively, it may be that your pump is overloaded. Maybe if you reduced the hoist speed your pump would cope better.