| Diagram group | What it shows | Common failure parts | |---------------|---------------|----------------------| | (front, right side of engine) | Pump body, drive gear, relief valve | O‑rings, relief valve spring, drive coupling | | Lift cover (top under seat) | Piston, cylinder bore, unloader valve, control valve, draft/lower links | Unloader valve sticking, piston seal, cam follower pin | | Flow control valve | Knob, spool, spring, detent | Worn spool or spring | | Auxiliary valve (if equipped) | Spool, O‑rings, end cover | Leaking O‑rings, broken handle | | Oil suction line | Screen/filter, tube, connections | Cracked tube, clogged screen |
Hydraulic System Circuits. Trouble Shooting, Pressure Testing, Specifications & Special Tools - Ford 2610, 3610, 4110, 4610, 5610, Tractorboek
CNHI’s site often has the exact hydraulic layout for free. Go to:
Here’s a solid, practical guide to finding and using a – whether you need the pump, lift cover, valves, or plumbing.
When you open the diagram, look for these numbered assemblies:
Let’s walk through a real-world repair using your parts diagram.
