Figure 43. Service Screw, Line Test Port, And Air Purge Screw Locations - Red Jacket Quick-Set VSFC Submersible Turbine Pump Installation, Service, & Parts Lists

Pump Tests
Unscrew protective plug to
access service screw
3. Remove line test port plug (see Figure 43). Apply line test pressure at line test port (50 psi [345 kPa]
maximum).
WARNING
Excessive pressure (above the normal test pressure of 50 - 55 psi [345 - 380 kPa])
may damage check valve seat and other system components.
4. Depressurize the line (as per Step 2 above) and remove test fixture. Apply an adequate amount of fresh, UL
classified for petroleum, non-setting thread sealant on the 1/4'' NPT plug and replace it in the line test port.
Torque the plug to 14 to 21 ft-lbs (19.4 to 29 N•m). For AG applications, Loctite 564 is recommended for all
field serviceable pipe threads.
5. Turn the service screw counterclockwise all the way up. As the screw nears its top position you will hear the
check valve drop into position. Replace the protective plug over the service screw, and fully thread into place
to ensure a good seal.
6. Turn the air purge screw 2 - 3 turns counterclockwise (see Figure 43).
WARNING
The air purge screw is retained by a hitch pin to limit travel. Do not attempt to rotate
beyond 3 turns.
7. Turn the pump on and let it run for about 2 minutes to purge air from the manifold's hydraulic cavities. While
the pump is still running, turn the air purge screw clockwise until it is completely closed.
8. The pump is now ready for normal operation.
9. Enable lines at the dispensers.

Figure 43. Service Screw, Line Test Port, And Air Purge Screw Locations

Line test port
Air purge screw
rjpumps/fig21.eps
46
Testing the Line