8 hydraulic installation, 1 valve assembly – NORAC UC4.5-BC-JD8 User Manual

Page 23

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21

8 Hydraulic Installation

Ensure all pressure has been bled from the system before disconnecting any lines
or fittings. Hydraulic pressure will exist on the wing tilt circuits unless the wings
are being supported by other means. The hydraulic installation may be performed
with the wings in transport position, resting on the ground or with the tilt cylinders
fully extended.

Component failure due to oil contamination is not covered under the NORAC
UC4.5 system warranty. It is recommended that a qualified technician perform the
hydraulic installation.

8.1 Valve Assembly

Orifices are not installed in the 1

st

and 2

nd

stations of the NORAC valve block

for this sprayer because the John Deere orifices in the wing cylinders are used.

1. On a clean surface remove the plastic plugs from the block.

2. Install the 6MB-6MOR (F05) fittings on the “P” and “T” ports on the NORAC block.

Tighten to 18 ft-lbs (24 Nm).

3. Install the 4MOR-4MB (F06) fitting into the "S" port and tighten to 11 ft-lbs.

4. Install the 6MB-6MOR (F05) fittings into the “A” and “B” ports on the NORAC block.

Tighten to 18 ft-lbs (24 Nm).

Figure 23: NORAC Valve Block Details

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