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3 hydraulic plumbing – NORAC UC4.5-BC-SC2 User Manual

Page 24

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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. Remove the hoses that run between the cap end of the hydraulic tilt cylinder and the steel

line from the valve block. Where the hoses were disconnected from the steel lines, install a
6MJP fitting (F10) into the steel line.

3. Connect hose H04 to each of the cap ends of the hydraulic tilt cylinders. Route the hoses

towards the center of the boom, near the valve block.

4. Install the 6MJT fitting (F05) between the two hoses (H04). Attach hose H05 to the

remaining connection of the tee (F05).

5. Install 6FJXR 6MJT fittings (F04) onto the “P” and “T” ports on the NORAC valve block.

Install a second 6FJXR 6MJT fitting (F04) onto the tee previously installed into the “T” port
on the NORAC valve block.

6. Connect hose H05 to one of the tee fittings on the NORAC “T” port.

7. Remove the pressure hose from the Spra Coupe valve block. Install the Spra Coupe

pressure hose onto the tee fitting (F04) installed at the NORAC “P” port.

8. Install a 6MJ 6FJX90 fitting (F03) onto the pressure connection at the Spra Coupe valve

block.

9. Connect hose H02 to the Spra Coupe pressure port and route the other end to the

NORAC valve block. Install the hose onto the tee (F04) installed in the “P” port on the
NORAC valve block.

10. Remove the tank line from the Spra Coupe valve block. Attach the tank line to one of the

tee fittings (F04) installed at the NORAC “T” port using the 6FJ 8MJ fitting (F12). Fitting
F12 may not be needed for all installations.

11. Install hose H02 onto one of the tee fittings installed at the NORAC “T” port. Route the

free end of hose H02 to the Spra Coupe valve block.

12. Install a 6MJ 6FJX90 fitting (F03) onto the Spra Coupe tank port. Install hose H02 onto the

6MJ 6FJX90 fitting on the Spra Coupe tank port using the 6MJ 8FJX fitting (F11). Fitting F11
may not be needed for all installations.