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Part of the New Holland Repair Manuals.
All 826 pages of this New Holland LW50B, LW80B Service Manual PDF (OEM #60367191NA) focus on one machine family: the LW50B and LW80B wheel loaders, from the hydrostatic travel drive to the articulated frame joint. Inside you get factory wiring diagrams with a complete fuse list, hydraulic schematics for the working circuit and steering priority valve, and exploded views of every Carraro axle group: brake disks, epicyclic reduction gears, wheel hubs, differentials. Step-by-step adjusting operations walk you through the axial-piston pump and motor on the hydrostatic transmission. Torque the wheel nuts to 500 Nm, hold the front axle mounting bolts at 350 Nm, and set the parking brake idle position at 6.0 mm. No more chasing hydraulic faults with a gauge and a hunch. Bookmarked PDF opens on any device; grab your tablet, walk to the loader, and start wrenching.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 4-17 | Safety Instructions, Organizational Measures, Personnel Qualification, Special Dangers |
| Service Data | 18-47 | Engine, Axles, Hydraulic System, Pump, Motor, Tightening Torques |
| Diesel Engine | 48-51 | |
| Travel Drive | 52-259 | Hydrostatic Transmission, Axial-Piston Pump, Axial-Piston Motor, Distributor, Adjusting Operations |
| General Information and Safety | 260-273 | Axle Design, Safety Instructions, Maintenance, General Working Instructions |
| Carraro 28.16 Fr Front Axle | 274-324 | Carraro Repair Manual P/N CA357327, Rif. CA147195 (1st Edition 03/2004), Sectional View, Brake Disk Group, Epicyclic Reduction Gear Group, Wheel Hub Group, Differential Support Group, Pinion Group |
| Carraro 28.25-28.25 Fr Front Axle | 372-481 | Carraro Repair Manual P/N CA357329, Rif. CA150144-CA147188 (1st Edition 03/2004), Sectional View, Brake Disk Group, Epicyclic Reduction Gear Group, Wheel Hub Group, Differential Support Group, Pinion Group |
| Carraro 28.16 + TB150 Rear Axle | 482-577 | Carraro Repair Manual P/N CA357330, Rif. CA147194-CA150145 (1st Edition 04/2004), Sectional View, Hydraulic Motor Group, Transmission Box Group, Epicyclic Reduction Gear Group, Wheel Hub Group, Differential Support Group |
| Carraro 28.20 + TB150 / TB138.5 Rear Axle | 578-713 | Carraro Repair Manual P/N CA357331, Rif. CA147186-CA147187-CA147189-CA150146-CA150147 (1st Edition 05/2004), Sectional View, Hydraulic Motor Group, Transmission Box Group, Epicyclic Reduction Gear Group, Wheel Hub Group, Differential Support Group |
| Steering System | 714-735 | Hydraulic Steering System, Steering Valve, Steering Cylinder, Priority Valve, Double Pump |
| Brake System | 736-761 | Service Brake, Parking Brake, Pedal Brake Valve, Pressure Switch, Accumulator Charging Valve, Pressure Accumulator |
| Hydraulic System | 762-797 | Working Hydraulics, Control Block, Lifting Cylinder, Dumping Cylinder, Hydraulic Reservoir, Hydraulic Filter |
| Electrical System | 798-817 | Electrical Components, Wiring Diagrams, Fuse List, Pcb |
| Frame | 818-826 | Articulated Joint, Pin, Articulated Bearing, Clamping Elements, Frame Halves |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| LW50B | ||
| Wheel-nut tightening torque | 500 Nm | p. 29 |
| Cardan shaft tightening torque | 34 Nm | p. 29 |
| Engine rating speed | 2300 min-1 | p. 22 |
| All Models | ||
| Parking brake idle position | 6.0 mm | p. 746 |
| Parking brake switching threshold | 5.5 mm | p. 746 |
| Precharging valve pressure | 0.5 bar | p. 782 |
| By-pass valve pressure | 2.5 bar | p. 782 |
| Fan speed | 2750 min-1 | p. 786 |
| F11 fuse rating | 7.5A | p. 802 |
| F30 fuse rating | 10A | p. 802 |
| LW80B | ||
| Wheel-nut tightening torque | 500 Nm | p. 44 |
| Engine rating speed | 2300 min-1 | p. 36 |
