Liugong DW90A Service Manual Repair, Hydraulics & Wiring Diagrams PDF (2020)

Description

Liugong DW90A Service Manual Repair, Hydraulics & Wiring Diagrams  (2020) PDF DOWNLOAD

Description:

The Complete Workshop Resource for Liugong DW90A Mining Trucks

Keep your heavy haulers moving with the definitive Liugong DW90A Service Manual. Published in 2020, this factory-issued PDF allows technicians to perform factory-level maintenance, deep diagnostics, and component rebuilding on DW90A Off-Road Wide-Body Dump Trucks.

From troubleshooting Weichai WP12 engine fault codes to rebuilding the Hande drive axles, this manual provides the torque specs, pressure settings, and disassembly procedures needed to minimize downtime in the mine.

Manual Features & Technical Coverage:

This manual is professionally organized into system-specific chapters for rapid information retrieval:

• Power System (Engine)

  • Weichai WP12.430/460 Repair: Valve clearance adjustment, turbocharger service, and fuel system diagnostics.

  • Fault Codes: Extensive lookup table for ECU fault codes (SPN/FMI), including “Limp Home” mode troubleshooting.

  • Cooling & Intake: Radiator assembly, intercooler piping, and air filter maintenance.

• Drive Train & Transmission

  • Faster Transmission Overhaul: Disassembly/assembly of 8DS240A and 10JSD220 gearboxes.

  • Axle Service: Hande front, intermediate, and rear axle setup, including main reducer and hub reduction gear repair.

  • Suspension: Leaf spring and balance shaft casing adjustments.

• Hydraulic Systems

  • Lifting System: Lift cylinder repair, main control valve logic, and pneumatic control valve troubleshooting.

  • Steering Hydraulics: Flow amplification valve, steering gear, and emergency steering checks.

  • Schematics: Full color-coded hydraulic schematics for lifting and steering circuits.

• Electrical System

  • Wiring Diagrams: Complete DW90A wiring diagrams for power supply, starting, lighting, and monitoring systems.

  • Instrument Cluster: Pinouts and logic for engine speed, air pressure, and fuel level displays.

  • Air Conditioning: Electrical schematics, compressor replacement, and refrigerant charging charts (R134a).

• Braking & Chassis

  • Pneumatics: Service brake and parking brake air circuit diagrams.

  • Component Repair: Air dryer maintenance, four-circuit protection valve testing, and relay valve service.

Product Details:

• Manual Name: Liugong DW90A Service Manual (Off-road wide-body dump truck)

• Models Covered: Liugong DW90A (Weichai WP12 Engine, Faster Transmission)

• Year: 2020

• File Type: High-Quality PDF (Text Searchable, Printable, Colored Diagrams)

• Number of Pages: ~410 Pages

• Language: English

Reduce Downtime & Repair Costs Today Don’t let a mystery fault code stop production. Download the Liugong DW90A Service Manual now to get the factory schematics and repair steps you need to fix your truck right the first time.