Outer Section Adjustment
The outer wing section of both spray booms includes a pressure relief valve plumbed into the
hydraulic lines near the wing fold cylinders. In the event this section of the wing contacts an
immovable object, the relief valve will allow hydraulic oil to bypass the cylinder, permitting the
wing tip to breakaway and fold rearward. To adjust the breakaway pressure:
1. Locate the pressure relief valve near the outer wing fold cylinders.
2. With an allen wrench,
remove the cap located on the
end of the valve cartridge to
access the adjustment screw.
Some hydraulic fluid may leak
from the valve, due to pressure
in the cylinder.
3. Using an allen wrench, turn the adjustment screw clockwise to increase the breakaway pres-
sure or counterclockwise to decrease the pressure. When making adjustments, it is suggested that
you start with a 1/4 rotation on the screw.
If the pressure relief valve is over tightened, the wing will
not break away when it contacts an immovable object. You
may also experience problems getting the boom to unfold completely, since the system
will be unable to push enough hydraulic oil over the pressure relief valve.
5. When finished, replace the cap on the end of the cartridge valve.
E7
IMPORTANT:
Adjust screw inside cartridge
Relief Valve Cartridge
Remove cap
Summary of Contents for Field-Pro IV 1200
Page 9: ...A8 SPECIFICATIONS ...
Page 11: ...A10 A C D E G P N 67657 A P N DEC HAZ01 A Safety Sign Locations B C F P N DEC HAZ08 A ...
Page 19: ...B6 ...
Page 29: ...C10 Raven 450 Spray Wiring Diagram ...
Page 32: ...C13 Raven 440 Spray Wiring Diagram ...
Page 50: ...E3 50 Hours 12 Hours 2 places 12 Hours 2 places 12 Hours Grease Zerk Locations ...
Page 64: ...G1 PARTS LISTING ...
Page 69: ...G6 ...
Page 70: ...G7 BASE PLUMBING ...
Page 72: ...G9 Pro 60 Boom ...
Page 73: ...G10 ...
Page 78: ...G15 Pro 80 Boom ...
Page 79: ...G16 ...
Page 84: ...G21 Pro 60 Boom Hydraulic Schematic ...
Page 86: ...G23 Pro 80 Boom Hydraulic Schematic ...
Page 88: ...G25 Pro 60 plumbing ...
Page 90: ...G27 Pro80 Boom Plumbing ...
Page 94: ...G31 ...
Page 96: ...G33 Foam Guidance system Model 6 or 10 ...
Page 100: ...G37 Rinse Assembly ...
Page 102: ...G39 Deluxe Plumbing with 4 Valve Stack Assembly ...
Page 104: ...G41 Deluxe Plumbing with 3 Valve Stack Assembly ...
Page 106: ...H1 Field Pro IV 1200 Base Wiring Details ...
Page 108: ...H3 ...