Komatsu WA120-3MC Wheel Loader Service Repair Manual
Komatsu Wa120-3mc Wheel Loader Operating Manual
Comprehensive Guide to the Komatsu WA120-3MC Wheel Loader
The Komatsu WA120-3MC Wheel Loader is a powerful and versatile machine, designed to excel in various construction, landscaping, and industrial applications. In this guide, we delve deep into every aspect of the Komatsu WA120-3MC, providing valuable insights, detailed specifications, and essential maintenance tips that ensure optimal performance and longevity.
Key Features of the Komatsu WA120-3MC Wheel Loader
The Komatsu WA120-3MC is renowned for its robust build, advanced engineering, and efficient performance. Here are the key features that set this wheel loader apart:
- Engine Power and Efficiency: The WA120-3MC is equipped with a Komatsu S4D102E-1 engine, delivering an impressive power output that ensures superior performance even in the most demanding conditions. The engine’s design emphasizes fuel efficiency and reduced emissions, making it a cost-effective and environmentally friendly choice.
- Hydraulic System: This wheel loader features a powerful hydraulic system that enhances lifting and digging capabilities. The advanced hydraulics provide smooth and precise control, making it easier to perform complex tasks with minimal effort.
- Operator Comfort and Safety: The cab is designed with operator comfort in mind, offering ergonomic seating, excellent visibility, and user-friendly controls. Safety features include rollover protective structures (ROPS) and a sound-suppression system to reduce noise levels.
- Durable Structure: Built with high-quality steel, the WA120-3MC’s frame and components are designed to withstand heavy-duty use, ensuring long-lasting durability and reduced maintenance costs.
The Operation & Maintenance Manual Describes Procedures For Operation, Handling, Lubrication, Maintenance, Checking, And Adjustment. It Will Help The Operator And Maintenance Personnel Realize Peak Performance Through Effective, Economical And Safe Machine Operation And Maintenance.
Service Repair Manual Contains:
Foreword
01 General
10 Structure And Function
20 Testing, Adjusting And Troubleshooting
30 Disassembly And Assembly
40 Maintenance Standard
90 Other
Operation & Maintenance Manual Contains:
Introduction
Foreword
Safety Information
Introduction
Location Of Plates, Table To Enter Serial No. And Distributor
Contents
Safety
General Precautions
Precautions During Operation
Precautions For Maintenance
Position For Attaching Safety Labels
Operation
General View
Explanation Of Components
Machine And Engine Checks
Starting The Engine
Operating The Machine
Transporting The Machine
Typical Work Operations
Cold Weather Operations
Long-Term Storage
Troubleshooting
Other Trouble
Maintenance
Guides To Maintenance
Outlines Of Service
Wear Parts List
Use Of Fuel, Coolant, And Lubricants According To Ambient Temperature
Standard Tightening Torque For Bolts And Nuts
Periodic Replacement Of Safety Critical Parts
Maintenance Schedule Chart
Service Procedures
Specifications
Wa120-3Mc Specifications
Options, Attachments
Available Attachments
Buckets And Tires Selection
Air Conditioning
Ecss (Electronically-Controlled Suspension System)
Radio
Technical Specifications of the Komatsu WA120-3MC
Understanding the technical specifications of the Komatsu WA120-3MC is essential for assessing its suitability for various tasks. Below are the detailed specifications:
| Specification | Details |
|---|---|
| Engine Model | Komatsu S4D102E-1 |
| Net Power | 90 HP (67 kW) |
| Operating Weight | 11,200 kg (24,692 lbs) |
| Bucket Capacity | 1.7 m³ (2.2 yd³) |
| Transmission | Hydrostatic |
| Max Travel Speed | 35 km/h (21.7 mph) |
| Breakout Force | 8,930 kg (19,690 lbs) |
| Tires | 17.5-25 |
Maintenance Tips for Optimal Performance
Proper maintenance of the Komatsu WA120-3MC is crucial to keep it running efficiently and prevent unexpected breakdowns. Here are key maintenance tips:
- Regular Engine Checks: Inspect the engine regularly for oil leaks, check oil levels, and replace oil filters as recommended by the manufacturer. Regularly check the cooling system and ensure the radiator is clean to prevent overheating.
- Hydraulic System Maintenance: Monitor hydraulic fluid levels and check for any leaks. Replace hydraulic filters regularly to maintain the system’s efficiency.
- Tire Inspection and Care: Keep tires inflated to the correct pressure and inspect for signs of wear or damage. Proper tire maintenance ensures stability and reduces the risk of punctures.
- Brake System Checks: Regularly inspect brake components and replace worn-out brake pads to ensure optimal braking performance.
- Regular Lubrication: Lubricate all moving parts, including joints and pivot points, to reduce wear and extend the life of the components.
Common Applications of the Komatsu WA120-3MC
The Komatsu WA120-3MC is versatile and can be used in various industries, including:
- Construction: Ideal for earth moving, material handling, and site preparation tasks.
- Agriculture: Used for moving large quantities of soil, manure, and other materials on farms.
- Landscaping: Suitable for clearing land, grading, and transporting landscaping materials.
- Industrial: Efficient in loading and unloading materials in warehouses, ports, and factories.
Troubleshooting Common Issues
While the Komatsu WA120-3MC is a reliable machine, users may encounter occasional issues. Here are common problems and troubleshooting tips:
- Engine Overheating: Check the cooling system for blockages, ensure the radiator is clean, and verify coolant levels. Regular maintenance of the cooling system is key to preventing overheating.
- Hydraulic System Failure: Inspect for leaks and ensure hydraulic fluid levels are adequate. Replace filters and maintain the hydraulic pump to avoid failures.
- Transmission Problems: If the machine experiences difficulty shifting, check the transmission fluid and replace it if necessary. Regularly inspect the transmission for wear and tear.
- Electrical Issues: Ensure all electrical connections are secure and free of corrosion. Replace faulty fuses and keep the battery terminals clean to avoid electrical failures.
