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Ventrac 4520Y User Manual

Ventrac 4520Y
266 pages
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Service Manual
4520Y
Serial Numbers 01001–05664
09.40002Rev 00
Original Instructions (EN)

Table of Contents

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Ventrac 4520Y Specifications

General IconGeneral
Horsepower25 HP
TransmissionHydrostatic
Drive SystemAll-Wheel Drive
Tire OptionsTurf, Bar
AttachmentsMowers, snow blowers, blades, sweepers, sprayers, aerators, power brooms

Summary

Preface

Safety Notices

General safety notices indicating hazards (DANGER, WARNING, CAUTION) and important information.

Chapter 1 General Safety Instructions

Before Operating the Machine Safety

Details pre-operation checks and safety precautions.

While Operating the Machine Safety

Outlines safety procedures to follow during machine operation.

Maintenance and Service Safety

Covers safety practices for maintenance and service tasks.

Jacking Instructions

Provides detailed steps for safely jacking the machine.

Chapter 3 Troubleshooting

GEARS – The Systematic Approach to Defining, Diagnosing and Solving Problems

Explains a structured method for troubleshooting machine problems.

General Hydraulic System Problems

Addresses issues related to hydraulic fluid leaks, foaming, and overheating.

General Electrical System Problems

Covers troubleshooting for electrical issues like battery charging and lights.

General Engine Problems

Provides solutions for common engine starting and running issues.

Chapter 4 Engine

Engine Service and Repairs

Covers general procedures for engine service and repairs.

Removing and Installing the Engine

Detailed procedure for removing the engine.

Installing the Engine

Detailed procedure for installing the engine.

Chapter 5 Hydraulic System

Relieving Pressure from the Hydraulic System

Critical procedure to release hydraulic system pressure before service.

Remote Filtering the Hydraulic System

Instructions for using the remote filtering tool.

Testing the Static Implement Pressure

Procedure for testing static implement pressure.

Testing the Hydrostatic Drive System Under Load

Method for testing hydrostatic drive under load.

Testing the Steering Valve P-Port Bypass

Test for steering valve P-port bypass.

General Precautions for Removing and Installing Hydraulic System Components

Essential precautions before servicing hydraulic components.

Changing the Hydraulic Fluid

Step-by-step instructions for changing hydraulic fluid.

Removing the Front Hydraulic Motor

Procedure for removing the front hydraulic motor.

Installing the Front Hydraulic Motor

Procedure for installing the front hydraulic motor.

Removing the Rear Hydraulic Motor

Procedure for removing the rear hydraulic motor.

Installing the Rear Hydraulic Motor

Procedure for installing the rear hydraulic motor.

Removing the Hydraulic Pump

Instructions for removing the hydraulic pump.

Installing the Hydraulic Pump

Instructions for installing the hydraulic pump.

Removing the SDLA Spool Valve

Procedure for removing the SDLA spool valve.

Installing the SDLA Spool Valve

Procedure for installing the SDLA spool valve.

Removing and Installing the Steering Valve

Instructions for removing and installing the steering valve.

Removing the Steering Cylinder

Procedure for removing the steering cylinder.

Installing the Steering Cylinder

Procedure for installing the steering cylinder.

Removing the Lift Cylinder

Procedure for removing the lift cylinder.

Installing the Lift Cylinder

Procedure for installing the lift cylinder.

Removing the 3–Point Hitch Spool Valve

Steps for removing the 3-point hitch spool valve.

Chapter 6 Electrical System

Checking the Operation of the Interlock Switches

Verifies the safety interlock system functions correctly.

Battery Safety

Critical safety information for handling batteries.

Chapter 7 Chassis

Chapter 8 Axles

Removing the Front Axle Assembly

Procedure for removing the front axle assembly.

Installing the Front Axle Assembly

Procedure for installing the front axle assembly.

Removing the Rear Axle Assembly

Procedure for removing the rear axle assembly.

Installing the Rear Axle Assembly

Procedure for installing the rear axle assembly.

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