MWO-5-2350-262-35-4

MWO 5--2350--262--35--4

3--16

SECTION II INSTALLATION OF HDC PRIMARY MANIFOLD ASSEMBLY,

MANUAL SHUT–OFF VALVE V23, AND LEFT MAIN MANIFOLD PRESSURE

TRANSDUCER T7 -- CONTINUED

3--3

PRIMARY MANIFOLD FUNCTIONALITY TESTING -- CONTINUED

4. Connect a --8 return hose to port 17R (bottom of manifold).

5. Apply hydraulic pressure of 3000 psig (20684.27 kilopascal) @ 10 GPM (37854.12 CPM) to the

--8 hose port 17R (front of manifold). Hydraulic fluid should be flowing at 3000 psig (20684.27

kilopascal) @10 GPM (37854.12 CPM) from port 17R (bottom of manifold).

6. View the other manifold ports to determine if fluid is exiting any ports. If fluid is exiting those

ports, document which ports and stop the test.

7. Turn on the 24 VDC power supply. Valve V5 should activate and no fluid should be flowing from

port 17R (bottom of manifold). The multimeter connected to pressure transducer T1 should read

voltage equivalent to 7.125 VDC (3000 psig) (20684.27 kilopascal).

8. Turn off the 24 VDC power supply and view the multimeter connected to pressure transducer T1

to ensure the voltage rapidly decreases at T1. Hydraulic fluid should be flowing at 3000 psig

(20684.27 kilopascal) @10 GPM (37854.12 CPM) from port 17R (bottom of manifold).

9. Remove the hydraulic input pressure from the --8 hose connected to port 17R (front of manifold).

10. Remove the --8 hydraulic return hose from port 17R (bottom of manifold)

11. Install a --8, 37

flare nut cap onto port 17R (bottom of manifold).

12. Disconnect 28 VDC power supply from V5.

Figure 3--9. Primary Manifold Assembly Hydraulic Schematic Diagram

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