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Rev. D
Multi Pro 5700--D Hydraulic SystemPage 4 -- 1
Chapter 4
Hydraulic System
Table of Contents
SPECIFICATIONS 3.............................
GENERAL INFORMATION 4.....................
Hydraulic Hoses 4............................
Hydraulic Fitting Installation 4...................
Towing Sprayer 6.............................
Check Hydraulic Fluid 6.......................
HYDRAULIC SCHEMATIC 8.....................
HYDRAULIC FLOW CIRCUITS 9.................
Traction Circuit 9..............................
Steering Circuit 10............................
Spray Pump Drive Circuit 11....................
SPECIAL TOOLS 12............................
Hydraulic Pressure Test Kit 12..................
Hydraulic Tester (Pressure and Flow) 12.........
Hydraulic Test Fitting Kit 13.....................
TROUBLESHOOTING 14........................
TESTING 16...................................
Traction Circuit Charge Pressure Test 17.........
Traction Circuit Relief Pressure Test 18..........
Gear Pump Flow Test 19.......................
Steering Circuit Relief Pressure Test 20..........
Steering Control Valve and Steering
Cylinder Test 21.............................
Spray Pump Drive Circuit Relief Pressure Test 22.
Wheel Motor Efficiency: Case Drain Test 23......
Pulse Width Modulated (PWM) Valve Flow Test 24
ADJUSTMENTS 25.............................
Adjust Traction Pedal for Neutral (Machines with
Serial Numbers Below 310000000) 25.........
Adjust Traction Pedal for Neutral (Machines with
Serial Numbers Above 310000000) 25.........
Adjust Relief Valve 26.........................
SERVICE AND REPAIRS 27.....................
General Precautions for Removing and Installing
Hydraulic System Components 27.............
Check Hydraulic Lines and Hoses 27............
Flush Hydraulic System 28.....................
Charge Hydraulic System 29...................
Gear Pump 30................................
Gear Pump Service 32.........................
Piston (Traction) Pump 34......................
Piston (Traction) Pump Service 36..............
Manual Servo Control Assembly 37.............
Wheel Motors 38..............................
Wheel Motor Service 40.......................
Spray Pump Drive Motor 42....................
Spray Pump Drive Motor Service 44.............
Relief Valve 45...............................
Pulse Width Modulated (PWM) Valve 46.........
Steering Control Valve 48......................
Steering Control Valve Service 50...............
Steering Cylinder 52...........................
Steering Cylinder Service 54...................
Oil Cooler 56.................................
Hydraulic Reservoir 58........................
EATON MODEL 26000 SINGLE GEAR PUMP REPAIR
INFORMATION
EATON MODEL 72400 SERVO CONTROLLED PIS-
TON PUMP REPAIR INFORMATION
EATON MODEL 74318 and 74348 PISTON MOTORS:
FIXED DISPLACEMENT, VALVE PLATE DESIGN
REPAIR INFORMATION
PARKER TORQLINK
TM
SERVICE PROCEDURE
Hydraulic
System