Safety Instructions

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Safety Instructions

Hydraulic clamping can increase your machine shop’s efficiency by reducing setup time. Power clamping can also maximize output by reducing employee lost time due to the injuries that can occur with manual clamping.

Although hydraulic operation moves the control of the clamping fixture to an area of greater safety, operators must still be alert to several common sense practices. And to that end we offer some DOs and DON’Ts, simple common sense points which apply to all Enerpac hydraulic products. The line drawings and application photos of Enerpac products throughout this catalog are used to portray how some of our customers have used hydraulics in industry. In designing similar systems, care must be taken to select the proper components that provide safe operation and fit your needs.

Check to see if all safety measures have been taken to avoid the risk of injury and property damage from your application or system.

Enerpac can not be held responsible for damage or injury, caused by unsafe use, maintenance or application of its products. Please contact the Enerpac office or a representative for guidance when you are in doubt as to the proper safety precautions to be taken in designing and setting up your particular system.

In addition to these tips, every Enerpac product comes with instructions spelling out specific safety information. Please read them carefully.


Prevent inadvertent activation of the control units of power operated clamping systems.		Clamping devices must be activated before main spindle can be started.


Maintain a safe distance from clamping elements and workpiece to avoid personal injury.		Do not apply off-center load. Clamping force must be directly over the support point.


Use mechanical devices and not fingers to hold part until the hydraulics are activated.		Use check valves to maintain hydraulic pressure to clamping devices in the event of a hydraulic line failure.


Do not operate cylinders beyond limits of rated stroke or pressure. Use only 80% of usable stroke.		Use saddles or buttons to prevent mushrooming of plungers. Saddles distribute load evenly on the plunger.


Keep hydraulic equipment away from open fire and temperatures above 150 °F / 65 °C.		Fill pump only to recommended level. Fill only when connected cylinders are fully retracted.


Do not override the factory setting of pressure relief valves. Always use a gauge to check system pressure.		Do not kink hoses. Bending radius must be at least 4.5 inch (115 mm). Do not drive over or drop heavy objects on hoses. Use high pressure tubing in high cycle applications.


Use genuine Enerpac hydraulic oil. Wrong fluid destroys seals and pump, will render your warranty null and void your guarantee.		Always read instructions and safety warnings that come with your Enerpac hydraulic equipment.