Part of the Yanmar Repair Manuals.
Need factory-level service data for your wheel excavator? This 356-page Yanmar B55W-1 shop manual PDF (OEM #023-00067E) addresses the full B55W lineup, including DD80L, Mega 130, and Mega 160, from counterweight removal to complete hydraulic system rebuilds. Inside: a complete hydraulic schematic, and a thorough troubleshooting and adjustment section covering the main pump, main control valve, pilot joysticks, travel motor, swing motor, and center joint swivel. You also get standard torque tables, swing reduction gearbox procedures, and drive axle and transmission service. Torque air cleaner hose clamps under 44 mm to 0.2-0.3 kg•m (20-30 in lb) and check your hydraulic filter daily during break-in, then weekly once the system stabilizes. Your machine is down and guessing costs hours. One-click download; search any spec by keyword and pull it up right at the excavator.
Complete the set for your B55W-1
- Parts Catalog: Yanmar B55W-1, 4TNV94L-PDBWE wheel excavator Parts Catalog
- Repair Manual: Yanmar B55W-1 Hydraulic Wheel Excavator Operation Manual
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety | 7-44 | Wheel Excavator Safety |
| Specifications | 45-62 | Specifications for B55W-1 |
| General Maintenance | 63-90 | General Maintenance Procedures, Standard Torques |
| Upper Structure | 91-124 | Counterweight, Fuel Transfer Pump, Swing Bearing, Swing Reduction Gearbox |
| Lower Structure and Chassis | 125 | Ram Lock Valve Operation |
| Engine and Drive Train | Drive Axle, Air Conditioner, Transmission, Drive Coupling |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Air cleaner hose clamp torque (Under 44 mm) | 0.2 - 0.3 kg•m (20 - 30 in lb) | p. 85 |
| Air cleaner hose clamp torque (Over 44 mm) | 0.5 - 0.6 kg•m (40 - 50 in lb) | p. 85 |
| Hydraulic filter check interval (initial) | every day | p. 325 |
| Hydraulic filter check interval (stabilized) | once a week | p. 325 |
| Battery weight | 24.4 kg | p. 57 |
| Engine Rated Output | 54.9 ps @ 2,400 rpm | p. 56 |
| Hydraulic Oil Capacity | 72 liters | p. 56 |
| Coolant Capacity | 11.5 liters | p. 56 |
| Counterweight Weight (B55W-1) | 234 kg | p. 95 |
| R134a Gas Weight (B55W-1) | 750 ±20 grams | p. 142 |
| Transmission Oil Change Frequency | Every 1000 hours | p. 157 |
| Boom Cylinder Drift Tolerance | 10 mm | p. 60 |
