Part of the New Holland Repair Manuals.
A U80B that lifts fine cold and sags by mid-afternoon usually comes down to one pressure reading, and this manual tells you what that reading should be. The New Holland U80B repair manual, publication 87728505 NA, runs 852 pages of factory procedure for the Loader Landscaper: General torque and lubricant charts, then Engine, Fuel System, Electrical, Steering, Power Train, Brakes, Hydraulics and Mounted Equipment, closing with the hydraulic and electrical schematics.
Guessing costs more than the book: the wrong seal kit, a second teardown after the first one missed the lock valve, a clutch pack cooked because nobody checked transmission oil temperature. You get removal and installation steps, pressure checks, troubleshooting charts and the specification tables behind them, including loader control valve and cylinder work.
It arrives as a PDF download, readable on a laptop at the machine and printable page by page, so the component you order matches the one you pulled.
What's Inside This New Holland U80B Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 5-21 | Section Index - General (Standard Torque Specifications, Fluids and Lubricants, Metric Conversion Chart) |
| Engine | 22-76 | Section Index - Engine (Engine and Radiator Removal and Installation, Stall Test, Diagnosing Engine Oil Consumption, Counter Balance Removal and Installation, Turbocharger Diagnosis Procedure Family 3 Engines) |
| Fuel System | 77-95 | In Vehicle Injector Pump Removal, Installation and Static Timing |
| Electrical | 96-192 | Section Index - Electrical (Removal and Installation of Electrical Components, Electrical Specifications and Troubleshooting, Batteries, Instrument Cluster) |
| Steering | 193-299 | Removal and Installation of Steering Components, Steering Specifications, Pressure Checks and Troubleshooting, Steering Control Valve, Steering Cylinders |
| Power Train | 300-552 | Removal and Installation of Power Train Components, Standard Transmission Specifications, Pressure Checks, And Troubleshooting, Wheels and Tires, Rear Axle and Planetaries |
| Brakes | 553-571 | Section Index - Brakes (Removal and Installation of Brake Components, Master Cylinder) |
| Hydraulics | 572-720 | Section Index - Hydraulics (Removal and Installation of Hydraulic Components, Hydraulic System Specifications and Troubleshooting, Cleaning the Hydraulic System and Hydrostatic System, Loader Control Valve, Cylinders, Three Point Hitch Control Valve, Accumulator for Machines with Optional Glide Ride, Solenoid Valve for Machines with Optional Glide Ride, Flow Control Valve, Lock Valve) |
| Mounted Equipment | 721-849 | Section Index - Mounted Equipment (Pedals and Levers, Air Conditioning Troubleshooting, Air Conditioning System Service, Air Conditioning Components Service, Loader, ROPS Cab and Canopy, Standard and Mechanical Suspension Seat, Plug-In Weight) |
| Schematic Set | 850-852 | Hydraulic and Electrical Schematics |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Bolts for bearing caps | 120 Nm (89 pound-feet) | p. 246 |
| Bearing cap plug | 15 Nm (11 pound-feet) | p. 246 |
| Wheel nuts | 350 Nm (258 pound feet) | p. 256 |
| Rear wheel lug nuts | 1st phase 136 Nm (100 pound-feet), 2nd phase 271 Nm (200 pound-feet), 3rd phase additional 30 degrees | p. 303 |
| Mounting bolt for gear shift lever | 125 to 150 Nm (93 to 112 pound-feet) | p. 303 |
| Output of supply pump | 32 L/min to 68 L/min at 900 to 2200 r/min | p. 321 |
| Pump supply pressure (4WD) | 1248 to 1551 kPa, 12.5 to 15.5 bars at 900 to 2200 r/min | p. 321 |
| Pump Supply Pressure (Forward, Idle) | 1393 to 1427 kPa (202 to 207 psi) | p. 337 |
| Differential Lock Pressure | 1262 to 1317 kPa (183 to 191 psi) | p. 337 |
| Relief valves, item number 16 | 48 ± 5 lb-ft (65 ± 6.7 Nm) | p. 665 |
| Check valves, item number 20 | 90 ± 9 lb-ft (122 ± 12 Nm) | p. 665 |
| Receiver-Drier Oil Amount | 0.7 to 0.8 FL OZ (20 to 25 CC) | p. 792 |
New Holland U80B Common Problems This Manual Covers
Lift arms settle under a loaded bucket
Arms that creep down with material in the bucket, or cycle slowly at working rpm, usually trace to worn cylinder packings, a leaking lock valve or a drifted relief setting. The Hydraulics section gives a main hydraulic relief valve pressure setting of 210 ± 3 bar, so you can gauge the system before pulling a cylinder.
Manual Section: Hydraulics p. 633Shuttle clutch slips once transmission warms
Shifts that harden or slip only after the machine is up to temperature point at clutch pressure rather than linkage. Power Train pressure checks list regulated clutch pressure at 1103 to 1303 kPa, 11 to 13 bars at 900 to 2200 r/min, and a normal transmission oil operating temperature of 78 to 82° C so you test under the right conditions.
Manual Section: Power Train p. 321Oil consumption with blue exhaust smoke
A dipstick that keeps dropping can be the turbocharger as easily as the rings, and the two teardowns cost very different money. The Engine section carries a diagnosing engine oil consumption procedure plus a separate turbocharger diagnosis routine for Family 3 engines, so you rule out the cheaper cause first.
Manual Section: Engine p. 22Hard starting after injector pump work
Knock, black smoke and long cranking after a pump swap almost always mean static timing was never set. The Fuel System section covers in vehicle injector pump removal, installation and static timing, which is the difference between a pump that runs and one that runs right.
Manual Section: Fuel System p. 77No crank and dead instrument cluster
Loaders that sit between jobs show intermittent no-crank, blank gauges and batteries that will not hold overnight. The Electrical section covers batteries, instrument cluster service and removal and installation of electrical components, with electrical specifications and troubleshooting to trace the draw instead of buying another battery.
Manual Section: Electrical p. 96Steering heavy or slow to center
Wandering, heavy effort or a wheel that keeps creeping after you stop turning usually sits in the steering control valve or worn cylinder seals, not the pump. The Steering section includes steering specifications, pressure checks and troubleshooting alongside control valve and cylinder overhaul procedures.
Manual Section: Steering p. 193Cab air conditioning blows warm
Warm air by midsummer, a sagging suspension seat and worn pedal linkage all live in the same part of the book. Mounted Equipment covers air conditioning troubleshooting and system and component service, plus the loader, ROPS cab and canopy, pedals and levers, and the seat.
Manual Section: Mounted Equipment p. 721Frequently Asked Questions
Which machine and publication does this cover?
It is the New Holland U80B Loader Landscaper repair manual, publication 87728505 NA, 852 pages in English. Coverage runs General, Engine, Fuel System, Electrical, Steering, Power Train, Brakes, Hydraulics and Mounted Equipment, and it finishes with a hydraulic and electrical schematic set.
What are the wheel lug nut torque specs for a New Holland U80B loader landscaper?
The Power Train section torques rear wheel lug nuts in three phases: 136 Nm (100 pound-feet), then 271 Nm (200 pound-feet), then an additional 30 degrees. Work the phases in sequence rather than pulling straight to final torque. p. 303
Does it list fluid capacities and oil grades?
Yes. The General section specifies 15W-40 API CG-4 or CH-4 engine oil, engine crankcase oil capacity of 12 litres with a filter change, 77 litres hydraulic system total capacity, 117 litres fuel tank capacity and 17.4 litres cooling system capacity with heater. p. 14
Does it cover hydraulic pressure testing?
Yes. The Hydraulics section covers system specifications and troubleshooting, the main relief valve setting of 210 ± 3 bar, loader control valve, cylinders, flow control and lock valve procedures, and cleaning of the hydraulic and hydrostatic system. p. 633
Is this New Holland U80B Repair Manual a digital download?
Straight to your device: 852 pages of searchable Repair Manual, downloadable the moment payment goes through.
Does this New Holland U80B manual allow printing?
You can. The PDF is unlocked and carries no copy protection, so print the sections you want and keep the file as your backup.
Can I find wiring schematics in this New Holland U80B manual?
Yes. This New Holland U80B Repair Manual includes the electrical schematic foldout with a wire identification key on page 851, the hydraulic schematic on page 850, and circuit-by-circuit electrical troubleshooting tables with wire numbers and voltage check points.
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