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Tham khảo tài liệu 'gas station construction and maintenance, petroleum systems contractor nevada and arizona_9', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Simpo PDF Merge and Split Unregistered Version - http www.simpopdf.com UFC 3-460-03 21 JANUARY 2003 10.3.6.3.1. Check all exposed piping valves and associated equipment for corrosion. Prepare the surface and repaint as necessary. FREQUENCY Semi-Annually. 10.3.6.3.2. Piping identification must conform to MIL-STD-161. Repaint as necessary. FREQUENCY Quarterly. 10.3.7. Pumps. 10.3.7.1. Check for unusual noise vibration over-heating leaks and oil level. FREQUENCY Quarterly. 10.3.7.2. Lubricate pumps and motors as recommended by the manufacturer. NOTE Excessively greased bearings can cause over-heating. FREQUENCY Quarterly or as recommended by the manufacturer. 10.3.7.3. Product Recovery Tank Pump. The pump should start when the liquid level reaches 70 of the tank s total capacity and shut off when the level is pumped down to 20 . FREQUENCY Quarterly. 10.3.8. Manual Valves. 10.3.8.1. Lubricated Plug. Inspect all lubricated plug valves for ease of operation. If lubrication is needed due to difficult operation replace the valves immediately with non-lubricated valves. All lubricated plug valves must be scheduled for replacement. FREQUENCY Quarterly. 10.3.8.2. Gate. Lubricate and operate to prevent seizing. Adjust replace packing as needed. FREQUENCY Quarterly. 10.3.8.3. Non-Lubricated Plug Valves. Inspect for ease of operation. Adjust packing and maintain operators per manufacturer s specifications. FREQUENCY Quarterly. 10.3.8.4. Ball. Inspect for ease of operation and lubricate operators. FREQUENCY Quarterly. 10.3.9. Filter Separator F S . 10.3.9.1. F S Element. At the last point of filtration in the fixed system replace elements at 15 psi DP or every three years whichever comes first. Replace elements at all other locations at 20 psi DP or every three years whichever comes first. During element replacement clean the interior surfaces of the F S vessel and second-stage element s see paragraph 3.3 for detailed instructions . Use API edition 4 or 5 elements. Funding will .
