Views: 0 Author: Site Editor Publish Time: 2026-09-02 Origin: Site
This article is to introduce the trobuleshootings of hydraulic press oil cooling system. There are two types of oil cooling systems for hydraulic stamping press. Industry oil chiller is a better solution than standard fan with radiator.
Any inspection, maintenance and troubleshooting should be performed by experienced professionals.When fault orabnormal condition occurs, the chiller will stop running and displaying alarm, please refer to the following informationto eliminate the fault and restart the chiller.
When oil leaks from the oil pipe, tighten the tube bundle or hose lock nut, or replace the tube bundle.
When welding tools are required for maintenance:
(1) Please discharge the refrigerant in a well-ventilated place to prevent suffocation.
(2) Please drain the oil in the oil pipeline and oil tank, remove the oil pipe between the main machine and the chiller toprevent fire.
(3) Please discharge and dispose of the refrigerant in accordance with national environmental protectionrequirements and regulations.
(1) The chiller suddenly stops running and displays fault signal.
Probe short circuitor open circuit |
Possible causes | Broken or bad contact probe |
Controller failure | ||
Inspection method | Check whether the probe is broken | |
If above is normal, it's controller failure | ||
Troubleshooting | Rewiring | |
Replace faulty parts | ||
Compressor
pressure high or low |
Possible causes | Overmuch or insufficient refrigerant |
Refrigeration system blockage or leakage | ||
Condenser or air filter blockage | ||
Poor heat dissipation | ||
Cooling fan failure | ||
Inspection method | Copper tube on the low pressure side of the compressor is not
cold |
(2) The chiller stops suddenly without showing any fault signal.
Oil temperaturedoes not reach theset temperature butthe refrigerationsystem stopsworking |
Possible causes | Load exceeds the cooling capacity |
Poor heat dissipation | ||
Refrigerant leakage | ||
Temperature controller failure | ||
Inspection method | Check if the required cooling capacity exceeds the load of the
chiller | |
Check the internal temperature of the chiller | ||
Copper tube on the low-pressure side of the compressor is not
cold | ||
If all of the above are normal, the temperature controller may
be faulty | ||
Troubleshooting | Replace a larger cooling capacity chiller | |
Improve the working environment and create a well-ventilated
place | ||
Please contact professional maintenance personnel | ||
Replace the temperature controller |
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