NORAC UC5-BC-JD12 - Manual (Page 28)

25
10 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 UC5
system warranty. It is recommended that a qualified technician perform the
hydraulic installation.
10.1 Valve Assembly
1. On a clean surface remove the plastic plugs from the block.
2. Install the 6MB-6MOR (F01) fittings into the “P” and “T” ports. Tighten to 18 ft-lbs (24
Nm).
3. Install the 4MB-4MOR (F09) fitting into the “S” port. Tighten to 11 ft-lbs (15 Nm).
4. Insert two orifices (F02) into the “B” ports with the notch facing outward.
5. Insert two orifices (F02) into the “A” ports with the notch facing inward.
6. Install the 6MB-6MOR (F01) fittings into the “A” and “B” ports. Tighten to 18 ft-lbs (24
Nm).
7. Install the orifice (F03) and a 6MB-6MOR fitting (F01) into the “B” port of the 3 rd station of
the block.
8. Install the 6MBP plug (F04) into the “A” port of the 3 rd station of the block.
9. Remove the plug from the Sense Line Bleed port. Location is shown in Figure 25. Gently
tap the plug with a hammer to loosen it before attempting to remove it. To access bleed
orifice, remove the valve coil that is covering it, by unscrewing the nut on the coil. Remove
the Sense Line Bleed Orifice and discard.
10. Install the setscrew (F11) into the Sense Line Bleed Orifice location. Ensure the setscrew
is threaded entirely into the hole and tightened to 35-40 in-lbs to ensure a tight seal.
Reinstall the plug and tighten to 35-40 in-lbs.