MWO-5-2350-262-35-4
ARMORED COMBAT EARTHMOVER (ACE), M9
MODIFICATION WORK ORDER
MWO-5-2350-262-35-4 - Page 44 of 207
MWO 5--2350--262--35--4
3--15
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
CAUTION
Testing should be performed in a clean environment and protective dust covers or caps
should be installed on all openings to prevent contamination. Dirt can damage parts and
cause malfunctions.
NOTE
Prior to installing the primary manifold in a vehicle, the following functionality tests should
be performed.
NOTE
Steps a through c apply to Figure 3--9.
a.
Testing hydraulic circuit port 17R to port 17R through Valve V5.
1. Connect a --8 hydraulic pressure hose to port 17R (front of manifold).
2. Connect a multimeter(s) adjusted to read 15 VDC full scale to pressure transducers T1, T2 and
T13.
3. Connect a 28 VDC power supply with the output adjusted to 28 VDC to valve V5. Ensure the DC
power supply is turned off at this time.
Figure 3--9. Primary Manifold Assembly Hydraulic Schematic Diagram
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