Multi Pro 1750 Hydraulic SystemPage 4 − 1
Chapter 4
Hydraulic System
Table of Contents
SPECIFICATIONS 2............................
GENERAL INFORMATION 4.....................
Operator’s Manual 4..........................
Relieving the Hydraulic System Pressure 4.......
Hydraulic Hoses 5............................
Hydraulic Fittings 7...........................
HYDRAULIC SCHEMATIC 9.....................
HYDRAULIC FLOW DIAGRAMS 10...............
Steering Circuit 10............................
Spray Boom Lift/Lower Circuit 12...............
SPECIAL TOOLS 14............................
TROUBLESHOOTING 16........................
TESTING 19...................................
Hydraulic Pump Flow and Relief Pressure
Test 22....................................
Steering Control Valve and Steering Cylinder
Test 24....................................
SERVICE AND REPAIRS 26.....................
General Precautions for Removing and Installing
Hydraulic System Components 26.............
Checking the Hydraulic Lines and Hoses 26......
Flushing the Hydraulic System 27...............
Hydraulic Pump 28............................
Hydraulic Pump Service 30....................
Steering Control Valve 34......................
Steering Control Valve Service 36...............
Steering Cylinder 38..........................
Steering Cylinder Service 40...................
Hydraulics Enable Valve 42....................
Hydraulics Enable Valve Service 42.............
Boom Lift Control Manifold 44..................
Boom Lift Control Manifold Service 46...........
Cartridge Valve Service 48.....................
Boom Lift Cylinders 50........................
Boom Lift Cylinder Service 52..................
DANFOSS STEERING UNIT TYPE OSPM
SERVICE MANUAL
Hydraulic
System
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