Question

After lock-out and tag-out and confirmation of zero energy, what is the procedure to replace a faulty hydraulic unloading valve? • A. Drain the system, disconnect unloading valve, replace valve, reconnect valve, then energize system. • B. Bleed the system, disconnect unloading valve, replace valve, reconnect valve, then energize system. • C. Bleed the system, disconnect relief valve, replace valve, reconnect valve, then energize system. • D. Drain the system, disconnect relief valve, replace valve, reconnect valve, then energize system.

          After lock-out and tag-out and confirmation of zero energy, what is the procedure to replace a faulty hydraulic unloading valve?
• A. Drain the system, disconnect unloading valve, replace valve, reconnect valve, then energize system.
• B. Bleed the system, disconnect unloading valve, replace valve, reconnect valve, then energize system.
• C. Bleed the system, disconnect relief valve, replace valve, reconnect valve, then energize system.
• D. Drain the system, disconnect relief valve, replace valve, reconnect valve, then energize system.

Added by Patricia S.

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