A technician is performing an end-of-shift maintenance procedure to evacuate accumulated moisture from a shop air compressor receiver tank. In what sequence should the technician perform these steps to safely drain the tank and prevent internal corrosion?
- 1Shut off electrical power to the compressor motor to prevent the unit from cycling during service.
- 2Position a collection container directly underneath the tank's bottom drain petcock.
- 3Open the drain petcock slowly to allow residual tank pressure to force out condensed moisture.
- 4Close the drain petcock tightly after all moisture and pressurized air have fully discharged.
Answer
The proper sequence begins with shutting off electrical power to the compressor motor, placing a collection container beneath the drain port, slowly opening the bottom drain petcock to discharge moisture, and finally closing the valve tightly once fully drained.
Safe compressor tank maintenance dictates isolating the power source first, positioning a waste container to capture effluent, carefully venting the pressurized moisture and sludge, and sealing the petcock once the purge is complete.
Step-by-Step Solution
Key Concept
Daily drainage of accumulated condensate from the bottom of an air compressor receiver tank prevents internal tank rust, line contamination, and catastrophic tank failure.
Estimated Time:1m 0s