NORAC UC4.5-BC-JD7 - Manual (Page 24)

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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
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) into the "S" port and tighten to 11 ft-lbs.
4. Insert the orifices (F08) into the “B” ports with the notch facing out.
5. Insert the orifices (F08) into the “A” ports with the notch facing in.
6. Install the 6MB-4MOR (F07) fittings into the “A” and “B” ports on the NORAC block.
Tighten to 18 ft-lbs (24 Nm).
Figure 21: NORAC Valve Block Details