Part of the New Holland Repair Manuals.
The EDC 7 UC31 control unit is where these engines usually stall a rebuild: a blink code, a sensor fault, and no clear line between wiring, sensor, or pump-injector. Electrical Equipment gives the pin-out diagrams and engine sensor data, and Troubleshooting carries the blink code table and failure descriptions that turn a flashing lamp into a named fault.
The rest of the book is the strip-down. Mechanical Components takes the F3BE0684H and F3BE0684G apart and back together, flywheel to camshaft to rocker-arm shaft, while Overhaul and Technical Specifications holds the cylinder block, liner and crankshaft figures. Fuel, cooling and maintenance planning fill in around them. 154 pages, English, PDF download, publication 87523643.
Every week an engine sits half apart is a week of lost work, so the numbers are here: clearances, wear limits and the staged torque sequences, plus the tool numbers to quote when you order.
What's Inside This New Holland F3BE0684H, F3BE0684G Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| General Specifications | 5-18 | Cooling (Water Pump, Thermostat), Turbocharging |
| Fuel | 19-24 | Feeding, Fuel Supply Diagram, Injector Pump |
| Mechanical Components - Disassembly and Assembly | 25-37 | Engine Disassembly, Engine Assembly, Flywheel, Camshaft, Pump-Injectors, Rocker-Arm Shaft |
| Electrical Equipment | 38-52 | EDC 7 UC31 Control Unit, Pin-Out Diagrams, Engine Sensors, Alternator, Starting Motor |
| EDC System Functions | 53-72 | Fuel Dosing, Delivery Correction, Injection Lead Control, Engine Start, Cold Start, After Run |
| Troubleshooting | 73-84 | Blink Code Table, Failure Descriptions, Sensor Faults, Actuator Faults, CAN-Bus Interfaces |
| Maintenance Planning | 85-90 | Maintenance Services Chart, Maintenance Intervals, Off-Plane Operations |
| Overhaul and Technical Specifications | 91-138 | Cylinder Block, Cylinder Liners, Crankshaft |
| Tools | 139-150 | Tools List |
| Safety Prescriptions | 151-154 | Standard Safety Prescriptions |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Cylinder head capscrews | Stage 1: 60 Nm, Stage 2: 120 Nm, Stage 3: 90°, Stage 4: 65° | p. 135 |
| Engine flywheel screw tightening torque | First phase: 120 Nm, Second and third phase: 60° + 30° | p. 39 |
| Bore | 135 mm | p. 93 |
| Cylinder head screw tightening torque | 1st phase: 60 Nm, 2nd phase: 120 Nm, 3rd phase: 120°, 4th phase: 60° | p. 37 |
| Adjusting screw locking nut torque | 5 Nm (0.5 kgm) | p. 45 |
| Rocker shaft capscrew | Stage 1: 100 Nm, Stage 2: 60° | p. 135 |
| Bore x stroke | 135 x 150 mm | p. 27 |
| Displacement | 12880 cm3 | p. 27 |
| F3BE0684H*E901 | ||
| Max. output (F3BE0684H*E901) | 324 kW (441 HP) at 2000 rpm | p. 27 |
| Max. torque (F3BE0684H*E901) | 2164 Nm (216 kgm) at 1400 rpm | p. 27 |
| F3BE0684G*E901 | ||
| Max. output (F3BE0684G*E901) | 286 kW (389 HP) at 2000 rpm | p. 27 |
| Max. torque (F3BE0684G*E901) | 1914 Nm (191 kgm) at 1400 rpm | p. 27 |
New Holland F3BE0684H, F3BE0684G Common Problems This Manual Covers
Blink code with no obvious cause
The lamp flashes a code and the engine derates, but the fault could sit in a sensor, an actuator, or the CAN-Bus link. The Troubleshooting section lists the blink code table with failure descriptions and sensor and actuator fault entries, so the code names a circuit before anything is unplugged.
Manual Section: Troubleshooting p. 73Head gasket failure after overheating
Coolant loss and combustion pressure in the cooling system usually end with the head off. Refitting it is a four stage job: pre-tighten to 60 Nm, then 120 Nm, then close to angle at 120 degrees and 60 degrees, which the disassembly and assembly section spells out with the tightening sequence.
Manual Section: Mechanical Components - Disassembly and Assembly p. 37Hard starting and low fuel delivery
Air drawn in at a feed line union or a tired supply pump shows up as long cranking and rough running under load. The Fuel section carries the fuel supply diagram, the feeding circuit and the injector pump, so the circuit can be traced from tank to injector before parts get replaced.
Manual Section: Fuel p. 19Injector calibration out of range
Smoke, knock and uneven cylinder contribution often trace back to injectors that no longer hold their setting. The overhaul specifications give injector calibration at 296 +/- 6 bar and an injection pressure of 1800 bar, which is the standard the bench result has to be measured against.
Manual Section: Overhaul and Technical Specifications p. 94Crankshaft endplay outside limits
Worn thrust washers let the crank walk, and that shows as clutch or drive-end trouble long before anyone suspects the bottom end. The overhaul specifications give a crankshaft end float of 0.10 to 0.30 mm, so the dial gauge reading either passes or the thrust washers get replaced.
Manual Section: Overhaul and Technical Specifications p. 97Piston protrusion wrong after liner work
Fitting liners and pistons without checking stand-out is how a fresh head gasket fails twice. Piston protrusion from the cylinder barrels must fall between 0.12 and 0.42 mm, measured before the head goes anywhere near the block.
Manual Section: Overhaul and Technical Specifications p. 123Oil filter leaks after a service
A filter run down by hand or crushed with a strap wrench weeps at the seal and drops pressure once the engine warms. The lubrication coverage in General Specifications gives an oil filter tightening torque of 35 to 40 Nm, along with the oil pump, pressure control valve and heat exchanger detail behind it.
Manual Section: General Specifications p. 15Frequently Asked Questions
Which engines does this manual cover?
It covers the New Holland F3BE0684H and F3BE0684G, published as repair manual 87523643. The book runs 154 pages in English and treats the engine as a unit, so it applies wherever the engine is installed or if it is sitting on a stand.
What are the bore, stroke and displacement?
The overhaul specifications list a bore of 135 mm, a stroke of 150 mm and a total displacement of 12880 cm3. Those figures sit with the rest of the cylinder block and liner data in the Overhaul and Technical Specifications section. p. 93
Does it give the cylinder head torque sequence?
Yes. The assembly procedure pre-tightens the head screws to 60 Nm, then 120 Nm with a torque wrench, then closes to angle at 120 degrees and 60 degrees using the angle tool. The tightening order is shown with the step values. p. 37
Can I diagnose EDC electronic faults with it?
Troubleshooting carries the blink code table, failure descriptions, sensor and actuator faults and the CAN-Bus interfaces. Electrical Equipment adds EDC 7 UC31 control unit pin-out diagrams, sensor data, alternator and starting motor coverage, and EDC System Functions explains fuel dosing, injection lead and cold start behaviour. p. 73
What exactly do I receive with this New Holland F3BE0684H Repair Manual?
A 154-page Repair Manual in searchable PDF format, available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Can I print a copy of this New Holland F3BE0684H Repair Manual for the shop?
No restrictions at all. Print individual pages, full chapters, or the entire manual. The PDF is completely unlocked.
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