Chapter 4
Hydraulic System
Table of Contents
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . 4
Hydraulic Hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Hydraulic Fitting Installation . . . . . . . . . . . . . . . . . . 4
HYDRAULIC SCHEMATIC . . . . . . . . . . . . . . . . . . . . . 6
HYDRAULIC FLOW DIAGRAMS . . . . . . . . . . . . . . . . 7
Steering Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Hydraulic Pressure Test Kit . . . . . . . . . . . . . . . . . . . 8
Hydraulic Tester (Pressure and Flow) . . . . . . . . . . 8
Hydraulic Test Fitting Kit . . . . . . . . . . . . . . . . . . . . . 9
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 10
TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Test No. 1: Steering Pump Flow and
SERVICE AND REPAIRS . . . . . . . . . . . . . . . . . . . . . 16
General Precautions for Removing and Installing
Hydraulic System Components . . . . . . . . . . . . . 16
Check Hydraulic Lines and Hoses . . . . . . . . . . . . 16
Flush Hydraulic System . . . . . . . . . . . . . . . . . . . . . 17
Steering Pump Drive Belt . . . . . . . . . . . . . . . . . . . 18
Steering Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Steering Pump Service . . . . . . . . . . . . . . . . . . . . . 22
Steering Control Valve . . . . . . . . . . . . . . . . . . . . . . 25
Steering Control Valve Service . . . . . . . . . . . . . . . 26
Steering Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Steering Cylinder Service . . . . . . . . . . . . . . . . . . . 30
Relief Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Test No. 2: Steering Control Valve and
Steering Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . 14
Multi Pro 1200/1250
Page 4 – 1
Hydraulic System
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
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| Document Type | Service Manual |
| Language | English |
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