FARMI 4571 / FARMI 4581
25
Fig 4. Modifying the valve for closed center system
HYDRAULICS
CONNECTION TO THE CLOSED CENTER SYSTEM, ON / OFF, 60 l
1. Replace the R1/2” plug on the T fitting by a R1/2” double nipple. Connect the tank hose here.
2. Plug this hole for the tank hose with R1/4” and R1/2” plugs.
3. Tighten the main relief valve by ¾ turn so that its pressure is at least 5-10 bar higher than that of the tractor
Original tank hose
New tank hose:
Replace the R1/2” plug by
a R1/2” double nipple.
Plug the original hole for the
tank hose with a R1/4” taper
plug and a R1/2” plug.