Owner manual

Adjust the Model 505.60 Hydraulic Pressure........................................................................................66
Low/High Pressure Functionality...........................................................................................................67
Low pressure..............................................................................................................................68
System commissioning...................................................................................................68
System cooling...............................................................................................................69
Energy consumption.......................................................................................................69
High pressure..............................................................................................................................69
Maintenance 71
Routine Maintenance Overview Checklist.............................................................................................72
Models 505.60/.90/.120/.150/.180 HPU Maintenance Schedule...........................................................74
Spare parts..............................................................................................................................................76
Lockout/tagout.......................................................................................................................................76
Operating the HPU.................................................................................................................................77
About Checking the Hydraulic Fluid.....................................................................................................77
Check the Hydraulic Fluid ........................................................................................................77
About Checking the Low Level/Temperature Detector.........................................................................78
How to check the low level switch.............................................................................................79
How to Check the Over Temperature Switch.............................................................................79
Replacing the Return-line Filter.............................................................................................................80
About Clamp-Style Housing Filter Replacement...................................................................................80
Required equipment...................................................................................................................80
Procedure....................................................................................................................................80
About Capscrew-Style Housing Filter Replacement..............................................................................83
Required equipment...................................................................................................................83
Replace the Capscrew-Style Housing Filter...............................................................................84
Replacing the Optional High-Pressure Filter.........................................................................................84
Required equipment...................................................................................................................85
Procedure....................................................................................................................................85
Sampling the Hydraulic Fluid................................................................................................................86
Prerequisite.................................................................................................................................87
Procedure....................................................................................................................................87
Appearance of Hydraulic Fluid Sample.....................................................................................89
About Replacing the Hydraulic Fluid....................................................................................................90
Recommended equipment..........................................................................................................90
Prerequisites...............................................................................................................................90
Procedure....................................................................................................................................90
Inspect the Heat Exchanger....................................................................................................................91
Procedure....................................................................................................................................92
Hydraulic Power Unit Maintenance and Service Logs 93
Service Every 8 Hours/Daily..................................................................................................................94
Service Every 40 Hours/Weekly............................................................................................................94
Series 505G2 SilentFlo™ Hydraulic Power Unit Product Information 5