Yanmar B50-2B, B50-2BUS Crawler Excavators Service Repair Manual

01 General Cautions for Maintenance Work
02 Technical Data
03 Servicing Standards
04 Engine
05 Hydraulics System
06 Hydraulics Equiment
07 Adjustment Procedures for each Equipment
08 Periodic Inspection and Servicing
09 Fuel, Lube Oil And Grease Recommended
10 Troubleshooting
10-1 Non- breakdowns
10-1-1 Natural Release of Bucket
10-1-2 Discontinuous Arm Movement
10-1-3 Drifting of Upperstructure
10-1-2 Quick Travel Operation
10-1-4 Thermal Shock of Travel Motor
10-1-5 Elongation of Boom Swing Cylinder on 90 degrees Swing
10-1-6 Telescopic Motion of Boom Swing Cylinder with Lock Lever in • Lock • Position
10-1-7 Time Lag on Switching Travel Speed
10-1-8 Hydraulic Oil Tank Oil Level Fluctuation Through Temperature Change
10-2 Troubleshooting
10-2-1 Machine and Engine
10-2-2 Electrical Equipment on Panel
11 Reference Data

and performance from YANMAR construction machinery, read this manual carefully and follow its instructions. Please note that ail dimensions and numerical values in this manual are for service reference, and are not inspection standards.