MWO-5-2350-262-35-4
ARMORED COMBAT EARTHMOVER (ACE), M9
MODIFICATION WORK ORDER
MWO-5-2350-262-35-4 - Page 47 of 207
MWO 5--2350--262--35--4
3--18
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
23. Turn the power supply on and fluid should not flow from port 9. Record the voltage from T13
pressure transducer.
24. 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 testing.
25. Turn the power supply off and remove the hydraulic input pressure from the --8 hose connected
to port 17R (front of manifold). There should not be any hydraulic pressure applied to the
manifold.
26. Install --8, 37
_
flare nut cap on port 9.
27. Remove the --8, 37
_
flare nut cap on port 7.
28. Connect a 28 VDC power supply to valve V19.
29. Apply hydraulic pressure of 3000 psig (20684.27 kilopascal) @ 10 GPM (37854.12 CPM) to the
--8 hose port 17R (front of manifold).
30. Turn the power supply on for valve V19.
31. Slowly increase the hydraulic pressure until fluid is coming from port 7. Record the pressure
valve when flow exits port 7. The correct pressure relief valve setting is 3800 psi.
Figure 3--9. Primary Manifold Assembly Hydraulic Schematic Diagram
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