Volvo L90h Wheel Loaders workshop Service Manual
🔥 Download Repair Manual
The Volvo L60H, L70H and L90H wheel loaders are versatile machines that can take on any task with a wide range of perfectly matched attachments. From the comfort of your wheel loader, sit back and enjoy a clear view of the site while increasing your productivity and uptime.
All Models:
🔧 1. General Information & Safety Guidelines
The manual begins with general service information, including:
- Model identification (L90H)
- Machine serial number location
- Standard workshop safety rules
- Required tools and Volvo-recommended PPE
- Lift and support points on the machine
This section helps you understand how to prepare the workspace safely and identify your specific L90H model configuration.
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🛠 2. Service and Maintenance Procedures
This core section includes detailed service routines and maintenance schedules, including:
- Hydraulic system inspection
- Fuel, air, and cabin filter replacements
- Lubrication points and intervals
This content is crucial for minimizing downtime and extending the machine’s life.
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⚙️ 3. Powertrain System (Engine, Transmission, Axles)
The manual offers full technical specifications and service procedures for:
- Volvo D6J Engine (Tier 4 Final compliant)
- Gearbox/transmission (Automatic Power Shift)
- Front and rear axles with differential & planetary reduction gears
This allows mechanics to diagnose power loss, overheating, or transmission faults with accuracy.
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🔩 4. Hydraulic System Diagrams & Testing
A full section is devoted to the hydraulic circuit, which controls:
- Boom lift and bucket tilt
- Steering cylinder
- Brake actuation
- Pilot control pressure lines
The manual includes detailed hydraulic flow charts, testing procedures, and circuit diagrams for fault isolation.
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🔌 5. Electrical System & Wiring Diagrams
Essential for resolving electrical faults, this section includes:
- Complete wiring diagrams
- Fuse box layouts and functions
- Sensor and switch locations
- Diagnostic procedures with a multimeter
- CAN-bus communication checks
Technicians can trace and fix no-start issues, lighting faults, or sensor failures.
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🧱 6. Brake System & Steering
The L90H features wet multi-disc brakes and a hydraulic steering system. The manual covers:
- Brake system pressure testing
- Brake pad/disc inspection and replacement
- Steering cylinder removal and resealing
- Steering orbital unit troubleshooting