API RP 1639:2003(2012) pdf download
API RP 1639:2003(2012) pdf download.Owner/Operator’s Guide to Operation and Maintenance of Vapor Recovery Systems at Gasoline Dispensing Facilities.
D 5.3.3.3 If present. ensure ho-sc retractors are functioning C properly and thai the boss, when hung up, is not exposed to damage vehicles.
D 5.3.3.4 Balance hoses should not touch the ground when hung up on the dispenser. Ensure the venturi hoses with one end marked “nozzle end are attached to the nozzle. Nonventuri hoses cannot exceed a 10-inch lentnh of loop below the nozzle. (See Figure 17.)
D 5.3.3.5 Monitor that vapor passages of bulance hoses are free of liquid. One symptom of this is that the nuzzle will have frequent shut-oils, If required. drain the hose or replace it if gasoline blockage persists in the hose. (Ensure that hose installation is in the corral orientationi (See Figure 10.)
D 5.3.3.6 Ensure that the proper hose end is connected to the nozzle. Remove and reserse if impmperly connected, The venturi in coaxial balance hoses w ill not function if hose is reversed. (See Figure l0J
5.3.4 Breakaway Valves
5.3.4.1 Breakaway valves are installed in the hanging hardware to block off the flow of liquid and sapor from the dispenser or hose in the event a hose is pulled off a dispenser.
D 5.3.4.2 Check the direction of flow indicated on the hreakaway litting and conlinti it is installed with the corral orien- C
tation. Remove and reverse if improperly connected. (See
Figures 10 and IX.)
D 5.3.4.3 Inspect breakaway connections for leaks, visible damage. excessive corrosion, or signs of partial separation.
Repair or replace breakaway-s that show signs of deterioration. damage. or panial separation.
5.3.5 Vacuum Pumps
a. Vacuum pumps assist the flow of vapors by pulling them from the car and pushing them back to the underground tank. They are located in the dkpenser or at a remote location. A qualified service technician should perform any maintenance. adjustments, or repair.
D b. He observant of the prcscncc of unusually strong gasoline odors during ftieling. Strong odors may indicate a malfunchoning vapor pump or other defect in the saporcolketion systcm A qualified scr.ice technician should pcrfonn any maintenance. adjustments. or repairs.
5.3.6 Vapor Processors
Several Stage II vapor recovcy systems have remote vapor pmccwrs to control emissions. A qualified service lcchni ciian should perform .naimenance. adjustments, or repairs to this equipment.
D 5.3.6.1 Check the system control panel and ensure that thc vapor processing unit is operating normally and not in alarm status. Contact a qualified service technictan for any required testing. adjustments, or work.
D 5.3.6.2 If the control panel of a vapor processor indicates an alarm condition, consult the opersiting manual regarding 55tetIl operation and contact a qualilied sen ice techiiician immediately.
5.4 INSPECTION CHECKLISTS
D 5.4.1 All inspections should be documented in writing. Appendix A provides suggested inspection checklists
6 Record-keeping and Permitting
6.1 GENERAL
A record of all equipment inspections. it intenanee. or repairs should he maintained at the station, be accessible within 24 hours, or as required by local or state regulations.
Vapor recovery systems should be inspected and tested on a regular scheduk based on locaLstate requirements and recommendations by the manufacturer,
The should check to ensure that any air quality operating permit has not espired and the facility is in compliance with permit conditions.
