NORAC UC5-BC-HD08 - Manual (Page 31)

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9.5 Hydraulic Plumbing: Double Acting
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 4.
2. Install hoses with 90 degree fittings onto the “A” ports on the NORAC valve block.
3. Install hoses with 90 degree fittings onto the “B” ports on the NORAC valve block.
4. Route the free ends of the hoses to each of the wing tilt cylinders.
5. Remove the Hardi hoses from the “raise” line (the “B” line) of the cylinder and replace the
restricted straight BSPP fittings with straight through 1/4 x 3/8 BSP fittings.
6. Install a 1/4 inch BSP tee union on the “raise” line of the cylinder and install the NORAC
and Hardi hoses onto the tee union.
7. Remove the Hardi hoses from the “lower” line (the “A” line) of the cylinder and install a
1/4 inch BSP tee union onto the fitting on the cylinder.
8. Install the NORAC and Hardi hoses onto the tee union on the tilt cylinders.
9. At the Hardi main valve block, remove the hydraulic hoses that run from the “raise” line of
the tilt cylinders to the valve block (Figure 29).
10. Install a 1/4 x 1/4 1.8 restrictor between the hoses and the valve block.
11. Remove the pressure and tank hoses from the Hardi valve block and insert a 1/4 inch BSP
tee union.
12. Connect hoses to each of the tee fittings and install the corresponding hose to the pressure
and tank port on the NORAC valve block.
Figure 29: Location of Hoses on Hardi Valve Block
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