NORAC UC4+BC+HD7 - Manual (Page 26)

23
4.6.3 Hydraulic Plumbing
WARNING!
From this point in the installation the
booms will be inoperative until the
electronics are fully installed.
After the NORAC valves are mounted, the
hydraulic hoses and fittings can be plumbed.
The kit is designed to work with either
single acting or double acting hydraulic
circuits. The plumbing for the typical
hydraulic circuit is shown in Figure 3 and
Figure 4.
4.6.3.1 Double Acting Plumbing
1. After the NORAC valve is mounted, the
hydraulic hoses and fittings can be
plumbed. The plumbing for the hydraulic
circuit is shown schematically in Figure
3.
2. Install the 90 degree fittings on hoses
H02 onto the “A” and “B” ports on the
NORAC valve block. Route the free
ends of the hoses to each of the wing
tilt cylinders.
3. Remove the Hardi hoses from the
“raise” line (the “B” line) of the cylinder
and remove the restricted straight BSPP
fittings. (Figure 28)
4. Install the 4FBSPPX 6MJ fittings (F04)
onto hoses H02. Install NORAC and
Hardi hoses onto the 4MBSPPT
4FBSPPRX tee (F05).
5. Remove the Hardi hoses from the
“lower” line (the “A” line) of the
cylinder and remove the restricted
straight BSPP fittings. (Figure 28)
6. Install the 4FBSPPX 6MJ fittings (F04)
onto hoses H02. Install NORAC and
Hardi hoses onto the 4MBSPPT
4FBSPPRX tee (F05).
7. At the Hardi main valve block, remove
the hydraulic hoses that run from the
“raise” line of the tilt cylinders to the
valve block (Figure 27). Remove the
fittings from between the hoses and
valve block.
8. Install the restrictor that was removed
from the wing tilt cylinder between the
hoses and the valve block.
9. Install the fittings that were removed
from the valve block between the
cylinders and tee fittings (F05).
10. Remove the pressure and tank hoses
from the Hardi valve block and install
the 4MBSPPT 4FBSPPRX tee (F05)
between the valve block and hoses.
Install the 4FBSPPX 6MJ fittings (F04)
onto hoses H01.
11. Connect hoses H01 to each of the tee
fittings and route to the NORAC valve
block.
12. Install the corresponding hose to the
pressure and tank port on the NORAC
valve block.
Figure 27: Location of Hoses on Hardi Valve Block
Eagle Boom Force Boom