An hour from now you could have the variable displacement pump out of your Weidemann 1770 CX50, working straight from this 356-page repair manual PDF, OEM document 1000239317 for the wheel loader. Replacement procedures fill more than half the book, from resealing the working hydraulics control valve to detaching the center joint and its bearing. Hydraulic and electrical circuit diagrams sit near the back, tracing the drive, steering, brake and working circuits and listing plug and contact assignments pin by pin; supplier workshop manuals for the engine, variable displacement pump and motor, and planetary axles round it out. Pressure-test the radiator at roughly 1 bar, fill the cooling system with about 11.5 liters, and pull the wheel nuts to 285 Nm. A whole repair can stall on one missing pressure value. This bookmarked, text-searchable PDF travels to whatever site the loader is parked on.
What's Inside This Weidemann 1770 CX50 Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety | 17-38 | |
| Technical Data, Testing Equipment and Special Tools | 39-70 | Technical Data, Filling Quantities, Tightening Torques, Pressure Values, Flow Rates, Safety Stickers, Testing Equipment (Test Pressure Gauge, Flow Meter, Test Pump) |
| Inspections, Maintenance Work and Troubleshooting | 71-116 | Complete Vehicle (Inspection Log) |
| Complete Vehicle | 117-126 | Helpful Tips, Replacing Protective Stickers |
| Engine | 127-152 | Engine Removal, Engine Installation, Radiator, Air Filter System, Fuel System, Exhaust System |
| Hydraulic System | 153-200 | Depressurizing, Driving Hydraulics, Steering Hydraulics, Brake Hydraulics, Working Hydraulics, Auxiliary Hydraulics |
| Drive and Axles | 201-212 | Drive Shaft, Front Axle, Rear Axle, Twin Tires |
| Brake System (Mechanical Section) | 213-218 | Service Brake, Brake Shoes, Brake Drum, Parking Brake, Bowden Cable |
| Vehicle Frame and Load Arm | 219-252 | Front Carriage, Rear Carriage, Center Joint, Step Plate, Load Arm, Tool Attachment |
| Operator's Platform and Cab | 253-278 | Seat, ROPS Bar, Cab, Windshield Wiper, Steering Column |
| Electrical System | 279-304 | Generator, Battery, Switches, Sensors, Relays, Lighting System |
| Circuit Diagrams and Technical Descriptions | 311-338 | Hydraulic Circuit Diagram, Electrical Circuit Diagram, Plug Assignments / Contact Assignments, Technical Description |
| Supplier Service Manuals | 339-356 | Engine Workshop Manual, Variable Displacement Pump Repair Instructions, Variable Displacement Motor Repair Instructions, Planetary Axle Workshop Manual |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Wheel nut | 285 Nm | p. 49 |
| Hooked bolt nut (twin tires) | 285 Nm | p. 49 |
| Leakage inspection pressure | 1 bar | p. 84 |
| Coolant quantity | approx. 11.5 l | p. 139 |
| Engine Output | 35.7 kW | p. 45 |
| Engine Capacity | 2216 cm3 | p. 45 |
| Fuel Tank Capacity | 53 l | p. 47 |
| Engine Oil Capacity | 8.3 l | p. 47 |
| Hydraulic Fluid Tank Capacity | 30 l | p. 47 |
| Front Axle Transmission Oil Capacity | 3.2 l | p. 47 |
| Rear Axle Transmission Oil Capacity | 3.9 l | p. 47 |
| Wheel Nut Tightening Torque | 285 Nm | p. 49 |
