Hyundai HW250MH Wheel Excavator Service Repair Manual

Table of Contents:-

FOREWORD
GENERAL
1. Safety hints
2. Specifications
STRUCTURE AND FUNCTION
1. Pump device
2. Main control valve
3. Swing device
4. Travel motor
5. RCV Lever
6. Accelerator pedal
7. Brake pedal
8. Transmission
9. Travel control valve
10. Steering valve
11. Axle
HYDRAULIC SYSTEM
1. Hydraulic circuit
2. Main circuit
3. Pilot circuit
4. Single operation
5. Combined operation
ELECTRICAL SYSTEM
1. Component location
2. Electric circuit
3. Electrical component specification
4. Connectors
MECHATRONICS SYSTEM
1. Outline
2. Mode selection system
3. Automatic deceleration system
4. Power boost system
5. Travel speed control system
6. Automatic warming up function
7. Engine overheat prevention function
8. Variable power control system
9. Attachment flow control system
10. Boom floating control system
11. Intelligent power control system
12. Anti-restart system
13. Self-diagnostic system
14. Engine control system
15. EPPR valve
16. Monitoring system
17. Fuel warmer system
TROUBLESHOOTING
1. Before troubleshooting
2. Hydraulic and mechanical system
3. Electrical system
4. Mechatronics system
MAINTENANCE STANDARD
1. Operational performance test
2. Major components
3. Track and work equipment
DISASSEMBLY AND ASSEMBLY
1. Precaution
2. Tightening torque
3. Pump device
4. Main control valve
5. Swing device
6. Travel motor
7. Transmission
8. Steering valve
9. Front axle
10. RCV Alxe
11. RCV Lever
12. Turning joint
13. Boom, arm, bucket, dozer and outrigger cylinders
14. Work equipment
COMPONENT MOUNTING TORQUE
1. Introduction guide
2. Engine system
3. Electric system
4. Hydraulic system
5. Power train system
6. Structure
7. Work equipment

This manual has been prepared as an aid to improve the quality of repairs by giving the serviceman an accurate understanding of the product and by showing him the correct way to perform repairs and make judgements. Make sure you understand the contents of this manual and use it to full effect at every opportunity. This manual mainly contains the necessary technical information for operations performed in a service workshop.