Part of the New Holland Repair Manuals.
When the drive line on an LW170 starts slipping under load, the diagnostics in this service manual tell you in minutes whether the fault sits in the torque converter or the transmission control valve. That is not a call you can make by feel, and the manual walks through the test procedures step by step.
It covers the New Holland LW170 and LW190 wheel loaders with the Cummins C8.3-C engine: 300 pages spanning engine, drive line and transmission, braking, steering, bucket boom and frame, attachment hydraulic system, electrical system and cab, with separate specification sections for each model.
Guessing a boom cylinder lock nut torque or a relief valve setting is how loaders end up with blown seals and cracked castings. The figures here are the factory numbers, and as a PDF the whole book goes wherever the machine is parked.
What's Inside This New Holland LW170, LW190 Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety Rules | 1-20 | Generalities, Maintenance |
| Specifications - Wheel Loader LW170 | 21-24 | Cummins C8.3-C 125 kW, Engine Speeds, Torque Converter and Transmission, Axles and Brakes, Booms and Hydraulic System, Weight and Main Dimensions |
| Specifications - Wheel Loader LW190 | 25-26 | Cummins C8.3-C 150 kW, Tire Sizes, Steering System, Attachment Hydraulic System, Electrical System, Operating Weight and Dimensions |
| Fluids and Capacity Table | 27 | Engine, Transmission, Axles, Fuel Tank |
| Units of Measure Used in the Manual | 28 | Force, Pressure, Torque |
| Tightening Torques | 29-31 | Nuts, Screws, Resistance Class, Material Index, Coating Index |
| Engine | 32-43 | Identification Data, General Specifications, Engine Supports, Series C Engine Diagrams |
| Drive Line/Transmission | 44-119 | General Description, Torque Converter, Transmission Control Valve |
| Braking System | 120-147 | General Description, Operation, Diagnostics and Testing |
| Steering System | 148-175 | General Description, Steering Group, Steering Valve, Steering System Pump |
| Bucket Boom and Frame | 176-187 | General Description, Bucket Positioner Device |
| Attachment Hydraulic System | 188-225 | General Description, Hydraulic System Pump, Equipment Control Valve |
| Electrical System | 226-289 | Logic Board, Cab Instruments Cluster, Connectors |
| Cab | 290-300 | General Description, Repair, Cab Glazing |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Wheel tightening torque | 78.8 daNm | p. 21 |
| Delco starter motor rated power | 41MT- 24V - 7.5 kW | p. 22 |
| Engine support screw torque | 22.4 daNm | p. 39 |
| Engine support screw torque (LW190) | 8.8 daNm | p. 39 |
| Restriction of fuel filter (maximum pressure drop) | 0.345 bar (35 kPa) [5 psi] | p. 37 |
| Operating pressure of the by-pass valve | 1.75 bar (24.9 psi) | p. 104 |
| Engine Oil Capacity | 23.8 L | p. 27 |
| Cooling System Capacity | 45 L | p. 27 |
| LW170 | ||
| Transmission Oil Capacity | 20 L | p. 27 |
| Fuel Tank Capacity | 220 L | p. 27 |
| Loader Operating Weight | 13900 kg | p. 22 |
| LW190 | ||
| Fuel Tank Capacity | 240 L | p. 27 |
