Toro Groundsmaster 4700-D Service Manual

Groundsmaster 4500 --D/4700--D Hydraulic SystemPage 4 -- 113
For solenoid and control valve service procedures, see
Control Manifold Cartridge Valve Service in this section.
Refer to Figures 95 and 96 for cartridge valve and plug
installation torque.
IMPORTANT: A pilot piston (item 6) is placed be-
neath each of the relief valves in deck control man-
ifold ports RV8, RV9, RV10 and RV11. If a relief valve
is removed from the manifold, make sure to remove
pilot piston and label its position for assembly pur-
poses. When installing the pilot piston in the man-
ifold, make sure that the pilot piston slides fully into
the port before installing relief valve.
1. Manifold body
2. Zero leak plug (#6)
3. Zero leak plug (#4)
Figure 96
1
3
2
UP
2
25 ft--lb
(34 N--m)
20 ft--lb
(27 N--m)
20 ft--lb
(27 N--m)
Hydraulic
System

Toro Groundsmaster 4700-D Specifications

General

Brand	Toro
Model	Groundsmaster 4700-D
Category	Lawn Mower
Language	English

Summary

Chapter 1 - Safety

General Safety Instructions

General guidelines for safe operation, maintenance, and storage of the machine to prevent injury or death.

Jacking Instructions

Proper procedures for safely lifting and supporting the machine using jacks and jack stands.

Safety and Instruction Decals

Information on locating and maintaining safety and instruction decals on the machine.

Chapter 2 - Product Records and Maintenance

Product Records

Instructions for inserting operator manuals and parts catalogs into the service manual.

Maintenance

Overview of maintenance procedures and service intervals, referring to operator manuals.

Equivalents and Conversions

Tables for converting decimal and millimeter measurements and U.S. to metric units.

Torque Specifications

Recommended fastener torque values for various thread sizes and grades, including factors affecting torque.

Chapter 3 - Yanmar Diesel Engine

Specifications

Detailed specifications for Yanmar engines used in models 30873/30874 and 30881/30882.

General Information

Overview of engine specifications, manuals, and basic operation, including stopping the engine.

Service and Repairs

Procedures for servicing engine components like the air cleaner, fuel system, radiator, and engine removal/installation.

Chapter 4 - Hydraulic System

SPECIFICATIONS

Key hydraulic system specifications including pump displacements, pressures, capacities, and fluid types.

GENERAL INFORMATION

Information on operator's manuals, checking hydraulic fluid, towing procedures, and relieving system pressure.

HYDRAULIC SCHEMATICS

Diagrams showing the hydraulic system layout for GM 4500-D and GM 4700-D models.

HYDRAULIC FLOW DIAGRAMS

Visual representation of hydraulic oil flow for various machine functions like traction, lift, and deck control.

SPECIAL TOOLS

List of specialized tools required for hydraulic system testing and service, with part numbers.

TROUBLESHOOTING

Charts outlining common hydraulic system problems, their possible causes, and initial checks.

TESTING

Precautions and procedures for performing hydraulic system tests using pressure gauges and flow meters.

ADJUSTMENTS

Procedure for adjusting hydraulic control manifold relief valves to set pressure levels.

SERVICE AND REPAIRS

General precautions for component removal/installation and specific procedures for hydraulic system parts.

Chapter 5 - Electrical System

GENERAL INFORMATION

Information on operator's manual, electrical drawings, Toro Electronic Controllers (TEC), and Yanmar ECU.

SPECIAL TOOLS

List of special tools for electrical system work, including multimeter and dielectric lubricant.

INFOCENTER DISPLAY

Description of the LCD display, splash screens, main information screens, and menu navigation.

TROUBLESHOOTING

Guidance on diagnosing electrical problems, including operator advisories and fault codes.

ELECTRICAL SYSTEM QUICK CHECKS

Procedures for checking battery voltage, charging system, and interlock switches.

ADJUSTMENTS

Procedures for adjusting the traction pedal position and calibrating the traction pedal sensor.

COMPONENT TESTING

Methods for testing electrical components like ignition switch, fuses, fusible links, and relays.

SERVICE AND REPAIRS

Procedures for battery care, storage, service, removal, installation, inspection, testing, and charging.

Chapter 6 - Axles, Planetaries and Brakes

SPECIFICATIONS

Specifications for tire pressure, wheel torque, lubricants, and capacities for axles, planetaries, and brakes.

GENERAL INFORMATION

Information regarding operator's manuals for traction unit and cutting decks.

ADJUSTMENTS

Procedure for checking and adjusting planetary wheel drive end play.

SERVICE AND REPAIRS

Procedures for brake assembly removal, installation, inspection, and repair.

Chapter 7 - Chassis

GENERAL INFORMATION

Information on operator's manuals and cutting deck identification.

SERVICE AND REPAIRS

Procedures for servicing chassis components like the steering column, traction pedal, console arm, lift arms, and operator seat.

Chapter 8 - Cutting Decks

SPECIFICATIONS

Details on deck mounting, construction, height-of-cut, deck drive, blade specifications, discharge, lift, and suspension.

GENERAL INFORMATION

Information regarding operator's manuals and general safety precautions for working on cutting decks.

TROUBLESHOOTING

Factors affecting cut quality and troubleshooting common problems related to the cutting decks.

SPECIAL TOOLS

List of special tools for cutting deck service, including bearing installation tools and spindle plugs.

ADJUSTMENTS

Procedure for checking blade stopping time and adjusting the deck control manifold braking valve.

SERVICE AND REPAIRS

Procedures for servicing blade spindle assemblies, rear and front rollers, and cutting deck carrier frames.

Chapter 9 - Foldout Drawings

ELECTRICAL DRAWING DESIGNATIONS

Abbreviations used for wire harness colors and identification of splices in electrical schematics.

HYDRAULIC SCHEMATICS

Detailed hydraulic schematics for Groundsmaster 4500-D and 4700-D, with and without optional flow divider.

ELECTRICAL SCHEMATICS

Overall electrical schematics for Groundsmaster 4500-D/4700-D models, including specific model numbers.

WIRE HARNESS DRAWINGS

Diagrams showing the layout of main, seat/console, power center, deck, and engine wire harnesses.