It may also be the in mechanical energy, such as compressed or torqued springs. Or it may be present in the form of pressurized energy, as with the accumulator end cap. All employees should confirm that any stored energy is released before working on a device. A good practice is to review the equipment on each rig to identify those devices which may contain stored energy. These devices should be marked with a painted or stenciled warning that stored energy should be safely dissipated before any work is performed.
Some equipment is designed to be repaired and maintained only by properly qualified specialists.
In no case should an employee attempt to disassemble any of this equipment unless they are properly qualified and have confirmed that any stored energy has been released. This material is presented for information purposes only.