NORAC UC4+BC+JD8 Update - Manual (Page 5)

2 Hydraulic Update (Active and Passive Roll™)
There have been some minor variations in the John Deere 30 Series sprayers since they were
first released. In some cases this has resulted in slower wing speeds and other variations that
can affect the performance of NORAC’s Spray Height Control systems. Installation of larger
diameter hydraulic hoses and fittings will greatly improve boom speeds and therefore improve
overall performance.
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. You may wish to perform the hydraulic
installation 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.
2.1
Valve Assembly
1.
Remove the hoses the run from the JD valve block to the NORAC valve block.
2.
Remove the 4FORXR 4MORT fittings that are inserted between the JD valve block and the
hoses that run to the tilt cylinder.
3.
Reattach the JD hoses directly to the JD valve block.
Figure 1: Hoses and Tee Fittings to be Removed
Remove these
hoses and tee
fittings.