Table Of Contents - Danfoss 45 J Series Service Manual

Service Manual
Contents
Introduction
Technical Specifications
Features
Pressure Measurement
Initial Start-up Procedures
Fluid and Filter Maintenance
Troubleshooting
Series 45 J Frame Open Circuit Axial Piston Pumps
Overview ...................................................................................................................................................................................... 5
Safety precautions .................................................................................................................................................................... 5
Unintended machine movement ................................................................................................................................. 5
Flammable cleaning solvents ......................................................................................................................................... 5
Fluid under pressure .......................................................................................................................................................... 5
Personal safety ..................................................................................................................................................................... 5
Symbols used in Danfoss literature .................................................................................................................................... 6
General description .................................................................................................................................................................. 7
System circuit ............................................................................................................................................................................. 8
General specifications ............................................................................................................................................................. 9
Hydraulic parameters ............................................................................................................................................................ 10
Inlet pressure ...................................................................................................................................................................... 10
Pressure compensator valve setting .......................................................................................................................... 10
Case pressure ...................................................................................................................................................................... 10
Hydraulic fluid ................................................................................................................................................................... 10
Fluid viscosity ..................................................................................................................................................................... 10
Filtration .............................................................................................................................................................................. 10
Auxiliary mounting pads ...................................................................................................................................................... 11
Input shafts ............................................................................................................................................................................... 11
Control options ........................................................................................................................................................................ 12
PC control............................................................................................................................................................................. 12
LS control ............................................................................................................................................................................. 13
Electric Proportional Controls ...................................................................................................................................... 14
Electric On/Off Controls .................................................................................................................................................. 14
Required tools .......................................................................................................................................................................... 15
Port locations and gauge installation ............................................................................................................................. 15
General ........................................................................................................................................................................................ 16
Start-up procedure ................................................................................................................................................................. 16
Recommendations ................................................................................................................................................................. 17
Excessive noise and/or vibration ....................................................................................................................................... 18
Actuator response is sluggish ............................................................................................................................................ 18
System operating hot ............................................................................................................................................................ 19
Low pump output flow ......................................................................................................................................................... 19
Pressure or flow instability .................................................................................................................................................. 19
Pressure or flow instability (continued) .......................................................................................................................... 20
System pressure not reaching PC setting ...................................................................................................................... 20
High inlet vacuum .................................................................................................................................................................. 20
520L0607 • Rev AI • Sep 2013
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