MWO-5-2350-262-35-4
ARMORED COMBAT EARTHMOVER (ACE), M9
MODIFICATION WORK ORDER
MWO-5-2350-262-35-4 - Page 67 of 207
MWO 5--2350--262--35--4
3--38
SECTION II INSTALLATION OF HDC PRIMARY MANIFOLD ASSEMBLY,
MANUAL SHUT–OFF VALVE V23, AND LEFT MAIN MANIFOLD PRESSURE
TRANSDUCER T7 -- CONTINUED
3--7
INITIAL INTERCONNECTION AND ALIGNMENT OF HDC PRIMARY MANIFOLD
ASSEMBLY AND DIRECTIONAL CONTROL VALVE (DCV) BANK
CAUTION
It is important that HDC primary manifold assembly and directional control valve bank be
properly aligned during installation to allow rigid hydraulic tubes to be properly installed
and to fit properly. Damage to equipment could result from improper installation.
NOTE
All hydraulic tubes (hard lines) between primary manifold assembly and DCV bank should
be installed before installing any hydraulic hoses on primary manifold assembly.
NOTE
It may be necessary to apply slight pressure to various hydraulic components during
installation to obtain proper fit and correct physical alignment.
NOTE
Steps a through p below apply to Figure 3--24 and 3--25, and to Table 3--1.
NOTE
All connections below are made to front of primary manifold assembly and to DCV bank.
a.
Where applicable, replace identification and destination tags (band markers) attached to existing
hydraulic hoses that are rerouted and/or relocated as part of modification. Band markers are contained
in Bowl Area Band Marker Kit, 12496929.
b.
Install small hydraulic tube, 12496940, (Figure 3--24 (8)) between tube tee on port 17L of left suspension
raise/lower control valve on DCV bank and port 17L of HDC primary manifold assembly (Figure 3--25).
Ensure tube tee connector on valve is perpendicular to the DCV bank, by applying slight lateral pressure
to the DCV bank and/or the primary manifold assembly. Adjust HDC primary manifold assembly up or
down as necessary to ensure the fittings align with the tube. Do not completely tighten hex cap screws at
this time.
c.
Install another small hydraulic tube, 12496940, (Figure 3--24 (4)) between tube tee on port 17R of left
suspension raise/lower control valve on DCV bank and port 17R on HDC primary manifold assembly
(Figure 3--25). Ensure tee connector on valve is perpendicular to the DCV bank, by applying slight lateral
pressure to the DCV bank and/or the primary manifold assembly. Adjust HDC primary manifold assembly
up or down as necessary to ensure the fittings align with the tube. Do not completely tighten hex cap
screws at this time.
d.
Install previously removed rigid tube line, 13211E9565, (Figure 3--24 (1)) on DCV bank between upper
end of port tube tee on port 17L of left suspension raise/lower control valve and port 17L (Figure 3--25)
on suspension valve. If necessary, carefully adjust physical position of DCV bank and HDC primary
manifold assembly.
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