Chapter 3
Hydraulic System
Table of Contents
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
HYDRAULIC SCHEMATICS . . . . . . . . . . . . . . . . . . . . 2
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . 3
Operator’s Manual . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Securing Topdresser to Tow Vehicle . . . . . . . . . . . 3
Relieving Hydraulic System Pressure . . . . . . . . . . 3
Hydraulic Hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Hydraulic Hose and Tube Installation (O–ring Face
Seal Fitting) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Hydraulic Fitting Installation (SAE Straight Thread O–
ring Face Seal Fitting into Component Port) . . . 6
HYDRAULIC FLOW DIAGRAMS . . . . . . . . . . . . . . . . 8
Topdresser 1800 Operation . . . . . . . . . . . . . . . . . . . 8
Topdresser 2500 Operation: Switch Off . . . . . . . 10
Topdresser 2500 Operation: Switch On . . . . . . . 12
SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Hydraulic Pressure Test Kit . . . . . . . . . . . . . . . . . . 14
Hydraulic Tester (Pressure and Flow) . . . . . . . . . 14
Hydraulic Test Fitting Kit . . . . . . . . . . . . . . . . . . . . 15
O–ring Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 16
TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Charge Pressure Test . . . . . . . . . . . . . . . . . . . . . . 20
System Relief Valve (R1) Pressure Test . . . . . . . 22
System Flow Test . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Brush Motor Efficiency Test . . . . . . . . . . . . . . . . . . 26
SERVICE AND REPAIRS . . . . . . . . . . . . . . . . . . . . . 29
General Precautions for Removing and Installing
Hydraulic System Components . . . . . . . . . . . . . 29
Check Hydraulic Lines and Hoses . . . . . . . . . . . . 29
Brush Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Brush Motor Service . . . . . . . . . . . . . . . . . . . . . . . . 32
Conveyor Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Conveyor Motor Service . . . . . . . . . . . . . . . . . . . . 36
Wheel Motor (Topdresser 2500) . . . . . . . . . . . . . . 38
Wheel Motor Service (Topdresser 2500) . . . . . . 40
Hydraulic Control Manifold (Topdresser 2500) . . 44
EATON (CHAR–LYNN) A–SERIES GENERAL PUR-
POSE GEROLER MOTOR REPAIR INFORMATION
EATON (CHAR–LYNN) 2000 SERIES DISC VALVE
GEROLER MOTOR REPAIR INFORMATION
Topdresser 1800 & 2500
Page 3 – 1
Hydraulic System
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Manualpdresser 1800, Toro Manualpdresser 2500 |
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| Document Type | Catalog |
| Language | English |
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| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
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