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Energy Control Procedures
There are many pieces of equipment that are supplied by more than one type of energy source. Due to the fact that multi-source pieces of equipment can be difficult to lock/tagout, let's review an example Energy Control Procedure that has been developed for a multiple source hydraulic lift.
| SHUTDOWN PROCEDURE: | LOCATION OF LOCK/TAG | DE-ENERGIZED STATE TO BE VERIFIED, HOW |
| 1) Notify affected employees. |
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| 2) Lower scissors lift to full down position |
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| 3) Turn "OFF" emergency stop button. |
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| 4) Turn "OFF" one (1) electrical disconnect for: hydraulic pump. |
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| 5) Attach one (1) lock and one (1) tag to electrical disconnect. | On wall next to station |
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| 6) Lower conveyor to dissipate residual hydraulic energy |
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Ensure conveyor is in fully lowered position. |
| 7) Turn "OFF" one (1) electrical disconnect for three (3) conveyor motors. |
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Check with voltage meter |
| 8) Attach one (1) lock and one (1) tag to electrical disconnect. | On wall next to station. | Try to run conveyor |
| Note: if scissors lift must be lifted up to conduct repair work on the under side, you must completely remove it from the trench and set it on the floor . | ||
| START-UP PROCEDURE | ENERGY SOURCE ACTIVATED | |
| 1) Clear all personnel, tools, etc. from machine. N/A | N/A | |
| 2) Make sure emergency stop is in "OFF" position. N/A | N/A | |
| 3) Remove locks and tags from one (2) electrical disconnects: hydraulic pump, conveyors (3). N/A | N/A | |
| 4) Turn "ON" one (1) main electrical disconnect. | Electrical 440V, 110V, 12V Hydraulic | |
| 5) If maintenance/service is complete, return machine to operator. N/A | N/A | |
