NORAC UC4.5-BC-HD4 Part 1 - Manual (Page 36)

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8.4 Hydraulic Plumbing
From this point on in the installation the booms will be inoperative until the
hydraulics are fully installed.
1. After the NORAC valve is mounted, the hydraulic hoses and fittings can be plumbed. The
plumbing for the hydraulic circuit is shown schematically in Figure 3.
2. Connect pressure and tank lines between the HARDI block and the NORAC block.
a. Install tee fittings (HARDI01) between the pressure and tank ports on the existing valve
block and the respective lines.
b. Connect hoses (HARDI03) from the tee fittings to the pressure (“P”) and tank (“T”)
ports on the NORAC block.
3. The wing tilt “raise” must be connected to the “B” ports of the NORAC block in parallel
with the existing HARDI valve block.
a. Connect tee fittings (HARDI01) between the HARDI block and the HARDI wing tilt
lines.
b. Connect the “B” ports of the NORAC block to the wing raise lines by connecting
HARDI02 between the “B” ports and the tee fittings installed in the HARDI block.
c. The “A” ports on the NORAC block are plugged. The “lower” lines of the cylinders
are to remain attached to the HARDI sprayer valve block.