AGCO ST47A, ST52A Tractors Repair Manual

Preface

INTRODUCTION

This service manual starts with the essentials—core safety rules, machine-ID plates, torque charts and an explanation of how page numbers work—before diving into the meat of tractor upkeep. The engine section walks you through cooling, fuel-injection and air-cleaner care and then offers full teardown specs for both the 47-hp and 52-hp models. From there you’ll find step-by-step instructions for pulling major components such as the engine, axles, cab and platform, followed by a clutch chapter that covers free-play tweaks, wear checks and common fixes. Transmission coverage is exhaustive, spanning standard gear sets, power-shuttle, Quadra-Shift and hydrostatic drives, with matching PTO and 4WD details.

Separate divisions then break down hydrostatic-transmission testing, rear-axle rebuilds, brake adjustments, front-axle overhauls and a deep hydraulic section packed with circuit diagrams, valve logic and troubleshooting tables. Electrical coverage includes full-colour wiring diagrams, digital dash programming and CT-diagnostic software, while the steering division focuses on orbital hydrostatic units. The manual wraps up with cab and air-conditioning service—door alignment, belt checks, refrigerant charging—giving you everything you need to keep an ST47A or ST52A running smooth from top to bottom.