AGCO ST24A Tractor Repair Manual

Price range: $30.00 through $40.00

🚜 Equipment
Brand	AGCO
Type	Compact Tractors
Model	ST24A
📄 Documents
Language	English
Format	PDF
Title	Publication No.	Pages
Repair Manual	79028095	272
Iseki Three Cylinder Diesel Engine Manual	4283035M2	150

Preface

INTRODUCTION

This service manual has been prepared with the latest service information available at the time of publication. Read the service manual carefully before performing any service on the compact tractor. This manual is one of the most important tools available to the service technician. Right-hand and left-hand, as used in this manual, are determined by facing the direction the machine will travel when in use.

The photos, illustrations, and data used in this manual were current at the time of printing, but due to possible production changes, your machine may vary slightly. The manufacturer reserves the right to redesign and change the machine as necessary without notification.

WARNING: Some pictures in this manual show the machine with shields or guards removed to allow for a better view of the subject. All shields and guards must be in position before operating the machine.

TO THE DEALERS

This manual was developed to provide the best possible information, technical support, and service to the customer. Review the Table of Contents and basic layout to become familiar with the locations of pertinent information such as the maintenance table, specifications, etc.

REPLACEMENT PARTS

To receive efficient service, always provide the dealer with the following information:

Correct part description or part number.
Model number of your machine.
Serial number of your machine.

UNITS OF MEASUREMENT

Measurements are given in metric units followed by the equivalent in U.S. units. Hardware sizes are given in millimeters for metric hardware and in inches for U.S. hardware.

TABLE OF CONTENTS

A Table of Contents is located at the front of this manual. It shows the main divisions. Each individual division also includes its own Table of Contents.

PAGE NUMBERS

All page numbers consist of two parts separated by a dash, such as 01-25. The number before the dash represents the division number, while the number after the dash is the page number within that division. Page numbers appear at the lower right or left corner of each page.

Manual	Repair Manual, Engine Manual, Both Manuals

Table of Content

📙 Table of Contents

Cover

Cover

01 – Introduction

01 – Introduction

02a Engine

02a Engine

02b Engine

02b Engine

03 – Major Components

ST24A Compact Tractor Service Manual
- 03 Major Components
  - Operation Chart
    - Disassemble and Assembly of Major Components
  - Service Access
    - Component Access
      - Opening/Closing Hood/Side Covers
      - Removing/Installing Side Covers
  - Disassembly
    - Major Components
      - Seat, Fenders and Related Parts
        Gear Transmission Model
        Platform and Fender Removal
        Steering Post, Instrument Panel, and Related Parts
        Separation of the Engine from the Clutch Housing
        Removal of the Engine
        Separation of Clutch Housing from the Front Transmission Case
        Separate the Front Transmission Case from Rear Transmission Case
        Separate the Rear Axle Housing from Rear Transmission Case
      - Removal of Cylinder Case
      - Removal of Mid PTO
      - Removal of Front Axle
      - Removal of Radiator
  - Index

04 – Clutch

04 – Clutch

05 – Transmission

ST24A Compact Tractor Service Manual
- 05 Transmission
  - Standard Transmission
    - Inspection and Assembly Precautions
      - Inspection
      - Precautions for Assembly
  - Transmission Flow Diagrams
    - Shift Positions
      - Main Gear First Shift Position
      - Main Gear Second Shift Position
      - Main Gear Third Shift Position
      - PTO Drive
      - Mid PTO Drive
  - Disassembly, Inspection, and Assembly
    - Disassembly
    - Inspection
    - Precautions for Assembly
    - Assembly
  - PTO Clutch
    - HST Transmission
      - Function
      - Disassembly
      - Inspection
        Clutch Case
        Plate Disc
      - Assembly
    - PTO Clutch (Standard Transmission)
      - Precautions For One-Way Clutch Installation
      - Assemble
  - Mid PTO
    - Construction
    - Disassembly
    - Inspection
    - Precautions for Assembly
  - Index

06 – Hydrostatic Transmission

ST24A Compact Tractor Service Manual
- 06 Hydrostatic Transmission
  - Hydrostatic Unit
    - Construction
  - Power Flow Diagrams
    - High Range Flow
    - Low Range Flow
  - Component Function
    - Variable Type Pump
    - Fixed Type Motor
  - Valves
    - Low Pressure Relief Valve and Suction Check Valve
    - High Pressure Relief Valve
    - Neutral Valve
    - Level Valve
  - Troubleshooting
    - Troubleshooting
  - Hydrostatic Transmission
    - Disassembly, Inspection, and Assembly
      - Disassembly
      - Criteria For Replacing Worn Parts
      - Assembly
  - Major Components
    - List of Major Components of HST
  - Hydrostatic Transmission Test Procedures
    - Testing High Pressure
    - Testing Charge Pressure
    - Test Specifications
  - Hydrostatic Transmission Adjustments
    - Neutral Adjustment
      - Pedal Height Adjustment
      - Stopper Bolt Adjustment
      - Cruise Control Adjustment
        Return Cable Adjustment
  - Index

07 – Rear Brakes and Axle

ST24A Compact Tractor Service Manual
- 07 Rear Axle and Brakes
  - General
    - General Description
      - Disassembly
        Rear Axle Housing
        Differential Gears
      - Inspection
      - Precautions for Assembly and Adjustment
        Correct Bearing (Correct depth)
        Face Bearing (Not enough depth)
        Flank Bearing (Excessive depth)
      - Brake Linkage (Hydrostat)
      - Brake Linkage (Standard)
      - Brake Assembly
        Disassembly
        Inspection
        Friction Plates
        Actuator Assembly
        Separator Plate
        Assembly
  - Brake Adjustment
    - Adjustment – Mechanical Transmission
    - Adjustment – HST Transmission
  - Troubleshooting
    - Troubleshooting
  - Index

08 – Front Axle

ST24A Compact Tractor Service Manual
- 08 Front Axle
  - Front Axle and Differential Gears
    - Differential Components
      - Disassembly, Inspection, and Assembly
        Disassembly
        Disassembly of the Differential and Related Parts.
    - Final Drive Case and Related Parts
      - Inspection
      - Assembly Precautions
      - Assembly
  - Troubleshooting
    - Troubleshooting
  - Index

09 – Hydraulic System

ST24A Compact Tractor Service Manual
- 09 Hydraulic System
  - Diagrams
    - Hydraulic System
      - Hydraulic Circuit Diagram
      - 1523 / ST24A Standard Type Hydraulic System Diagram
      - Hydraulic Circuit Diagram
      - Hydrostatic System Piping
  - Specifications
    - Specifications
  - Disassembly and Assembly
    - Disassembly
    - Assembly
  - Major Components
    - Valves
      - Main Control Valve
      - Function – Main Control Valve
      - Inspection of Main Control Valve
        Main Spool
        Check Valve
        Compensator Spool
        Relief Valve
      - Assembly
      - Safety Valve
        General Description
        Operations
        Measurement of Cracking Pressure of Relief Valve
      - Flow Divider and PTO Clutch Valve
      - Flow Control Valve
        Construction and Components
        Inspection
      - Relief Valve
        General Description
      - Inspection and Adjustment
      - PTO Solenoid Valve
        General Description
        Inspection
  - Hydraulic Pump
    - Overhaul
      - Disassembly
      - Inspection and Repair
      - Pump Gears
      - O-rings
      - Oil Seal
        Assembly
      - Assembly Precautions
  - Oil Filter
    - Transmission Oil and Filters
      - Hydrostatic Oil Filter Replacement
  - Troubleshooting
  - Index

10 – Electrical

ST24A Compact Tractor Service Manual
- 10 Electrical
  - Battery
    - Battery Compartment
      - Neutral Starting Switches
  - Instrument Panel
    - 1523, ST24A & MT225B
      - Electrical Fuel Shut-Off
      - Main Switch
      - Indicator Light Strip
      - Tachometer
        Removal and Installation
  - Meters, Gauges, and Switches
    - Fuel Meters, Gauges, and Switches
      - Fuel Level Indicator Sending Unit
        Testing Fuel Sending Unit
      - Fuel Gauge and Sensor
        Removal
        Fuel Gauge and Sensor Testing
      - Coolant Temperature Indicator Sending Unit
        Testing Coolant Temperature Sending Unit
      - Coolant Sensor
        Removal and Installation
      - Start Switch
        Removal and Installation
      - Oil Pressure Indicator Sending Unit
      - Safety Switches, Fuses, and Relays
  - Troubleshooting
    - Battery
    - Meters, Gauges, and Switches
  - Index

11 – Hydrostatic Steering

ST24A Compact Tractor Service Manual
- 11 Hydrostatic Steering
  - General Information
    - Construction
      - Major Components
      - Integral Orbit Roll
        Disassembly
        Disassembly of Rotor Side
        Disassembly of Control Side
        Inspection
      - Assembly
        Assembly of Control Side
        Assembly of Gerotor Side
        Flow Control Valve Assembly
        Cylinder System
  - Troubleshooting
  - Index

12 – Lubrication

12 – Lubrication

Buyer Questions & Answers

Frequently Asked Questions❔

Are the manuals OEM (Original Equipment Manufacturer)?

Yes, we only provide manuals that are sourced from the machine manufacturer or authorized dealers.

What file format are the manuals in?

All manuals are provided in PDF format, which you can be open on your browser, computer, smartphone, or tablet.
Printed versions are available for select manuals — check the product page or contact us for availability.

Is the manual printable?

Yes, all pages are printable.

Where do I download the manual after I have paid for it?

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