///Hydraulic oil gets too hot
Intensifier: hydraulics & oil
Hydraulic oil gets too hot
Hot oil loses its lubricating power and wears pumps and seals faster.
Safety first: Switch off the pump, release all pressure (open the on/off valve or bleed-down valve) and lock out before you open any high-pressure part. Never put a hand or tool near a running jet.
1Quick questionsYour answers put the most likely cause on top.
Is your pump oil-to-water or oil-to-air cooled?
2Check the causes, most likely first
0 of 4 checked
01Cooling water flow too low
Most likely
A blocked heat exchanger or closed cooling valve cannot remove heat.
How to check: Check cooling water flow and temperature; flush the exchanger.
| Photo | Art. no. | Description | Excl. VAT | |
|---|---|---|---|---|
 | 12800 | Heat Exchanger, 05080080
KMT |
€ 598.80 |
02Relief valve partly open
Possible
Oil passing the relief valve turns power into heat.
How to check: A relief valve much hotter than the lines leaks.
03Dirty oil filter
Possible
A clogged filter makes the pump work harder.
How to check: Check the filter indicator; replace the element.
04Pump idling under pressure
Less likely
Holding full pressure while not cutting adds heat.
How to check: Use low pressure or stop when idle.
Related problems
General advice based on manufacturer manuals and service practice. Always follow the manual of your machine. Not sure? .