MWO-5-2350-262-35-4

ARMORED COMBAT EARTHMOVER (ACE), M9

MODIFICATION WORK ORDER

MWO-5-2350-262-35-4

  MWO-5-2350-262-35-4 - Page 48 of 207

MWO 5--2350--262--35--4
3--19
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
32. 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.
33. Install a --8, 37
_
flare nut cap on port 7.
34. Connect a power supply to valve V19 and V20.
35. Remove the --10, 37
_
flare nut cap on port 21 (bottom of manifold).
36. Apply hydraulic pressure of 3000 psig (20684.27 kilopascal) @ 10 GPM (37854.12 CPM) to the
--8 hose port 17R (front of manifold).
37. Energize the power supply to valves V19 and V20. Fluid should be flowing from port 21 (bottom
of manifold).
38. Record the voltage reading for pressure transducers T13 and T2.
39. 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.
40. Install the --8, 37
_
flare nut cap on port 21 (bottom of manifold).
41. Apply hydraulic pressure of 3000 psig (20684.27 kilopascal) @ 10 GPM (37854.12 CPM) to the
--8 hose port 17R (front of manifold).
42. Energize the power supply to valves V19 and V20.
43. Record the voltage reading for pressure transducers T13 and T2.
44. 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.
45. Remove the --10, 37
_
flare nut cap on port 21 (side of manifold).
46. Connect a 28 VDC power supply to valves V19, V20 and V1.
47. Apply hydraulic pressure of 3000 psig (20684.27 kilopascal) @ 10 GPM (37854.12 CPM) to the
--8 hose port 17R (front of manifold).
48. Energize the 28 VDC power supply to valves V19, V20 and V1.
49. Fluid should flow not flow from port 21 (side of manifold).
50. Read and record the voltage at pressure transducers T2 and T13.
51. De--energize the 28 VDC power supply and remove the valve V1 connection from the power
supply. Continue the valve V19 and V20 connection to the power supply.
52. Energize the power supply and observe fluid flowing from port 21 (side of manifold).
53. 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.
54. Install the --8, 37
_
flare nut cap on port 21 (side of manifold).
55. This completes the 2--way solenoid valve circuit test.


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