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3 hydraulic plumbing – NORAC UC4.5-BC-SC4 User Manual

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8.3 Hydraulic Plumbing

From this point on in the installation the booms will be inoperative until the

hydraulics are fully installed.

1. After the NORAC valves are mounted, the hydraulic hoses and fittings can be plumbed. The

plumbing for the hydraulic circuit is shown schematically in Figure 3.

2. Lower the wings to relieve holding pressure.

3. Disconnect the junction of the steel hydraulic line and the hose of the SpraCoupe circuit.

Connect a 6FJXR 6MJT tee fitting (F02) between the steel line and the hose (Figure 21).

4. Connect the 90 degree fittings of hoses H02 to the “A” and “B” ports of the NORAC block

(Figure 20). Route hoses H02 from the NORAC valve block to the tee fittings (F02)
(Figure 21).

5. The “B” ports leading from the NORAC valve block are the “raise” lines, and must be

connected to the boom raise cylinders via the existing lines and the tee fittings (Figure 21).

6. The “A” ports leading from the NORAC valve block are the “lower” lines, and must be

connected to the boom lower cylinders via the existing lines and the tee fitting (Figure 21).

7. Connect the 90 degree end of hoses H03 to the tank and pressure ports of the NORAC

valve block (Figure 20) (NOTE: This end of the hose has an adapter fitting already

installed.). Route hoses H03 to the SpraCoupe valve block.

8. Remove the existing SpraCoupe pressure line from between the SpraCoupe valve block and

tee.

9. Connect the hose (H03) from the NORAC Tank line to the pressure port on the

SpraCoupe valve block using an 8FJ 6MJ fitting (F04) (Figure 22).

10. Connect the hose (H03) from the NORAC Pressure line to the SpraCoupe pressure tee

using an 8FJ 6MJ fitting (F04) (Figure 22).