MTS Model 512-04 Hydraulic Power Unit - Manual (Page 22)

Model 512.04 Hydraulic Power Unit 22 Maintenance
Reducing the Fluid Temperature
The hydraulic power unit (HPU) will be shut down if the hydraulic fluid
reaches a temperature of 77°C (170° F).
NOTE The thermometer is for reference only. Use a calibrated
thermometer submersed in the reservoir for an accurate reading.
To reduce the fluid temperature, you need to make adjustments to the heat
exchanger.
• If you have the air-cooled version go to “Adjusting the Air Flow”
on page 23.
• If you have the water-cooled version go to “Adjusting the Water
Flow” on page 24.
77ºC
(170ºF)