Toro 30413 Service Manual

Rev.AGroundsmaster 4100 --D/4110--D Hydraulic SystemPage 4 -- 1
Chapter 4
Hydraulic System
Table of Contents
SPECIFICATIONS 2............................
GENERAL INFORMATION 3.....................
Operator ’s Manual 3..........................
Check Hydraulic Fluid 3.......................
Towing Traction Unit 3.........................
Relieving Hydraulic System Pressure 4..........
Traction Circuit Component Failure 4............
Hydraulic Hoses 5............................
Hydraulic Hose and Tube Installation 6..........
Hydraulic Fitting Installation 7..................
HYDRAULIC SCHEMATIC 9.....................
HYDRAULIC FLOW DIAGRAMS 10...............
Traction Circuit: Low Speed (4WD) 10...........
Traction Circuit: Hi Speed (2WD) 12.............
Lower Cutting Deck 14........................
Raise Cutting Deck 16.........................
Mow Circuit 18...............................
Mow Circuit Cutting Deck Blade Braking 20......
Steering Circuit 22............................
Engine Cooling Fan Circuit 24..................
SPECIAL TOOLS 26............................
TROUBLESHOOTING 30........................
TESTING 36...................................
Traction Circuit Charge Pressure 38.............
Traction Circuit Relief Pressure 40..............
Counterbalance Pressure 42...................
Traction Circuit Reducing Valve (PR)
Pressure 44................................
Rear Traction Circuit (RV) Relief Pressure 46.....
Piston (Traction) Pump Flow Test 48............
Cutting Deck Circuit Pressure 50................
PTO Relief Pressure 52........................
Cutting Deck Motor Case Drain Leakage 54......
Cutting Deck Gear Pump Flow 56...............
Steering Circuit Relief Pressure 58..............
Steering Cylinder Internal Leakage 60...........
Lift/Lower Circuit Relief Pressure 62.............
Steering and Lift/Lower Gear Pump Flow 64......
Engine Cooling Fan Circuit 66..................
Engine Cooling Fan Circuit Gear Pump Flow 68..
ADJUSTMENTS 71.............................
Adjust Control Manifold Relief Valves 71.........
Traction Linkage Adjustment 72.................
SERVICE AND REPAIRS 74.....................
General Precautions for Removing and
Installing Hydraulic System Components 74....
Check Hydraulic Lines and Hoses 74............
Flush Hydraulic System 75.....................
Filtering Closed--Loop Traction Circuit 76........
Charge Hydraulic System 77...................
Hydraulic Reservoir 78........................
Hydraulic
Oi
l Cooler 80........................
Gear Pump 82................................
Gear Pump Service 84........................
Traction Circuit 86............................
Piston (Traction) Pump 88.....................
Piston (Traction) Pump Service 90..............
Rear Axle Motor 92...........................
Front Wheel Motors 94........................
Rear Axle and Front Wheel Motor Service 96.....
4WD Manifold 98.............................
4WD Manifold Service 100.....................
Filter Manifold 102............................
Filter Manifold Service 104.....................
Steering and Engine Cooling Fan Circuits 106....
Steering Control Valve 108.....................
Steering Control Valve Service 110..............
Steering Cylinder 112.........................
Steering Cylinder Service 114..................
Engine Cooling Fan Motor 116..................
Engine Cooling Fan Motor Service 118..........
Fan Drive Manifold 122........................
Fan Drive Manifold Service 124.................
Mow Circuit 126..............................
Cutting Deck Motor 127........................
Cutting Deck Motor Service 128................
PTO Manifolds 132............................
PTO M anifold Service 134.....................
Cutting Deck Lift/Lower Circuit 136..............
Lift/Lower Manifold 138........................
Lift/Lower Manifold Service 140.................
Front Deck Lift Cylinder 142....................
Wing Deck Lift Cylinder 144....................
Lift Cylinder Service 146.......................
EAT ON MODEL 72400 SERVO CONTROLLED PIS-
TON PUMP REPAIR INFORMATION
EATON MODEL 74318 and 74348 PISTON MOTORS:
FIXED DISPLACEMENT, VALVE PLATE DESIGN
REPAIR INFORMATION
Hydraulic
System

Toro 30413 Specifications

General

Brand	Toro
Model	30413
Category	Lawn Mower
Language	English