Overview
The AGCO Power 4th Generation Medium Duty Types 33 and 44 Engine Workshop Repair Manual provides technical information for inspecting, servicing and repairing AGCO Power diesel engines. The Type 33 and Type 44 engines share many construction features and repair procedures, with engine-specific differences identified in the technical data and workshop instructions. Coverage includes the cylinder block, crankshaft, pistons, connecting rods, counterbalance assembly, timing gears, cylinder head, valve mechanism, lubrication system, cooling system, fuel injection and electronic engine controls.
Workshop procedures cover cylinder liner replacement, crankshaft inspection, piston ring servicing, cylinder head overhaul, valve clearance adjustment, oil pump repairs, turbocharger inspection, fuel pressure testing and injector servicing. The manual also contains EGR system information, EEM4 electronic engine management, ECU replacement, wiring references, engine sensor identification, component specifications and tightening torques. Measurements are expressed in millimetres at a component temperature of +20°C unless otherwise specified.
Safety: Read the safety instructions at the beginning of the workshop manual before starting engine repair work. Ensure the required tools, replacement parts and accessories are available before performing the relevant operations.
Notice: This workshop manual does not cover routine engine servicing procedures. Regular maintenance is described in the separate 4th Generation Medium Duty Engines Instruction Manual.
Table of Contents
AGCO Power 4th Generation Types 33, 44 Manual
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01. General Information and Technical Specifications
- To the User
- Safety Instructions
- Engine Type Designations
- Engine Serial Number Location
- EEM4 Control Unit Identification and Markings
- Engine Lifting Instructions
- Engine Construction and General Technical Data
- Cylinder Block Construction
- Flywheel Housing Construction
- Valve Mechanism Construction
- Cylinder Head Construction
- Crank Mechanism Construction
- Timing Gear Construction
- Engine Lubrication System Construction
- Engine Cooling System Construction
- Engine Inlet and Exhaust System Construction
- Cylinder Block Technical Specifications
- Cylinder Liner Technical Specifications
- Crankshaft Technical Specifications
- Engine Balancing Unit Technical Data
- Connecting Rod Technical Specifications
- Pistons, Piston Rings and Piston Pins
- Timing Gear Technical Specifications
- Cylinder Head Technical Specifications
- Valves and Rocker Arms Technical Data
- Valve Tappets and Push Rods
- Camshaft Technical Specifications
- Lubrication System Technical Data
- Engine Oil Pump Technical Specifications
- Engine Coolant Pump Technical Specifications
- Thermostat Technical Specifications
- Turbocharger Technical Specifications
- Engine Component Tightening Torques
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02. Workshop Repair Instructions
- Cylinder Block – Measuring Cylinder Liner Wear
- Cylinder Block – Removing Cylinder Liners
- Cylinder Block – Inspection
- Cylinder Block – Camshaft Bushing Replacement
- Cylinder Block – Installing the Rear Camshaft Plug
- Cylinder Block – Cylinder Liner Installation
- Crankshaft – Removal
- Crankshaft – Inspection
- Crankshaft – Gear Replacement
- Crankshaft – Installation
- Crankshaft – Oil Seal Replacement
- Connecting Rods and Pistons – Assembly Removal
- Connecting Rods – Bearing Replacement
- Connecting Rods – Inspection
- Pistons – Piston Ring Replacement
- Pistons – Inspection
- Pistons – Piston Pin Installation
- Pistons – Installing Pistons and Connecting Rods
- Counterbalance Unit – Removal and Disassembly (Type 44 Engines)
- Counterbalance Unit – Reconditioning (Type 44 Engines)
- Counterbalance Unit – Installation (Type 44 Engines)
- Counterbalance Unit – Crankshaft Gear Rim Replacement (Type 44 Engines)
- Timing Gear Assembly – Timing Gear Casing Removal
- Timing Gear Assembly – Idler Gear Reconditioning
- Timing Gear Assembly – Timing Gear Casing Installation
- Cylinder Head – Removal
- Cylinder Head – Valve Removal
- Cylinder Head – Inspection
- Cylinder Head – Valve Guide Replacement
- Cylinder Head – Valve Seat Machining
- Cylinder Head – Valve Seat Ring Replacement
- Cylinder Head – Valve Grinding
- Cylinder Head – Valve Installation
- Cylinder Head – Installation
- Valve Mechanism – Reconditioning
- Valve Mechanism – Camshaft and Camshaft Gear Replacement
- Valve Mechanism – Valve Adjustment
- Lubrication System – Oil Pressure Regulating Valve
- Lubrication System – Oil Pump Removal and Disassembly
- Lubrication System – Oil Sump Gasket Installation
- Lubrication System – Lubricating Oil Cooler
- Lubrication System – Engine Oil Quality Requirements
- Lubrication System – Closed Crankcase Ventilation (CCV)
- Cooling System – Coolant Quality Requirements
- Cooling System – Thermostat
- Cooling System – Coolant Pump
- Inlet and Exhaust System – Air Cleaner Inspection
- Inlet and Exhaust System – Inlet and Exhaust Pipe Inspection
- Inlet and Exhaust System – Turbocharger Inspection
- Inlet and Exhaust System – Turbocharger Installation
- Inlet and Exhaust System – Exhaust Gas Recirculation (EGR)
- Fuel System – Technical Specifications
- Fuel System – Bleeding Air from the Fuel System
- Fuel System – Fuel Feed Pressure Measurement
- Fuel System – Injector Inspection
- Fuel System – High-Pressure Fuel Pump
- Fuel System – Fuel Rail
- Fuel System – Fuel Quality Requirements
- EEM4 Engine Control System – Construction
- EEM4 Engine Control System – Description and Operation
- EEM4 Engine Control System – Diagnostic Service Tool
- EEM4 Engine Control System – ECU Replacement
- EEM4 Engine Control System – Wiring Harnesses
- EEM4 Engine Control System – Sensors
Type 44 Counterbalance and EEM4 Control System References
The workshop instructions identify the counterbalance assembly specifically for Type 44 engines. This section includes counterbalance removal, disassembly, reconditioning, installation and crankshaft gear rim replacement. The general technical data also contains a separate balancing unit reference, so the applicable engine type should be established before selecting these procedures.
The EEM4 electronic engine control section includes control unit construction, system description, diagnostic service tools, ECU replacement, wiring sets and engine sensors. The general section separately identifies the markings of the EEM4 control unit and the location of the engine serial number. These identification references are useful when selecting the corresponding engine control and electrical service information.
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