AGCO ST55 Tractor Service Manual
Manual for: AGCO Tractor
Format: PDF
Book Number: 79028168
AGCO
AGCO ST55 Tractor Service Manual
Manual TABLE OF CONTENTS
GENERAL INFORMATION
MAJOR COMPONENTS
COOLING, AIR CLEANER, AND FUEL SYSTEMS
ENGINE
CLUTCH
TRANSMISSION
FRONT AXLE
REAR AXLE
POWER STEERING SYSTEM
HYDRAULICS
ELECTRICAL
AGCO ST55 Tractor Service Manual
ST55 Manual Extract
| Problems | Causes | Countermeasures |
| Overheating | Low coolant level | Replenish coolant and inspect water leaks |
| Fatigued pressure valve springs | Replace radiator cap | |
| Loose or broken fan belt | Adjust belt tension or replace | |
| Oily fan belt | Replace | |
| Poor thermostat | Replace | |
| Poor water pump or water leaks | Repair or replace | |
| Clogged water passage | Clean radiator and water passages | |
| Improper injection timing | Adjust injection timing | |
| Clogged radiator | Clean radiator exterior |
The AGCO ST55 Tractor Service Manual contains detailed technical information for maintaining, servicing, and repairing the AGCO ST55 tractor. Its content typically includes:
General Information – Safety instructions, specifications, and service notes.
Engine System – Inspection, disassembly, repair, and reassembly procedures.
Fuel System – Fuel pump, injectors, and filtration servicing.
Cooling System – Radiator, water pump, and coolant flow maintenance.
Powertrain – Transmission, clutch, and differential servicing.
Hydraulic System – Hydraulic pump testing, pressure adjustments, and cylinder repair.
Electrical System – Wiring diagrams, battery maintenance, and troubleshooting.
Steering & Brakes – Adjustment and repair of steering mechanisms and braking components.
PTO (Power Take-Off) – Service and operational adjustments.
Chassis & Frame – Structural inspection and repairs.
Maintenance Schedules – Recommended service intervals and lubrication charts.
It is designed for technicians and owners to ensure proper operation, reduce downtime, and extend the tractor’s working life.











