Fendt 818, 820 Vario COM III Tractors Workshop Repair Manual

Applicable Models:

• Fendt 818, 820 Vario COM III Tractors Workshop Repair Manual – 1244 Pages
• Fendt 800 Vario COM III Wiring Diagram and Schematics – 76 Pages
• Testing instructions Auto-Guide System Manual – 316 Pages
• Greentec Two Tank System Manual – 330 Pages
• Technical Data – 62 Pages
• Operators Manual – 341 Pages
• Repair Schedules – 176 Pages

Workshop Manual TABLE OF CONTENTS

0000 Overall system/tractor
A General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
B Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
D Component position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
F Settings and calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
1000 Transmission
1005 Transmission control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1010 Differential unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
1015 Final drive axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
1030 Hand brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
1070 Brake system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
1080 Vario unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
1100 Clutch operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
1150 Cardan brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
1200 Front PTO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
1220 Live PTO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
1320 Front wheel drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
1430 Hydrodamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
2000 Engine
2000 Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2010 Cylinder head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
2060 Fuel system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
2312 Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
2400 Exhaust gas system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
2712 Injector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
3000 Front axle
3020 Axle body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3050 Suspension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3180 Cardan shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5000 Vehicle layout
5200 Cab bearing, suspension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
5500 Air conditioning system
5500 Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
5570 Electrical wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
8100 Cab
8100 Cab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
8600 Power lift
8610 Electrohydraulic EPC control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
8618 External control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
8631 Power lift control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
8800 Compressed air system
8800 Compressed air system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
8810 Air compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
8830 Brake fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
8890 Air reservoir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
8900 Front loader
8900 Front loader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
8970 Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
9000 Electrical system
9000 Measure and test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
9400 Hydraulic pump installation
9420 Transmission pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
9600 Hydraulic equipment
9600 Hydraulic equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
9700 Electronics
9700 Electronics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
9717 LBS – agricultural BUS system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
9740 E-box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
9770 Control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
9900 Service
9920 Special tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Manual Extract

This workshop manual provides notes for trained technicians to maintain our tractors. Read and observe the information in this documentation. This will help you prevent accidents.

Intended use includes maintaining operating the service and maintenance conditions as specified by the manufacturer. Operation, maintenance and repair of the tractor may only be carried out by people who are familiar with this equipment and aware of the associated dangers. Ensure that this documentation is available to and understood by everyone involved in operation, maintenance and repair. Not observing this documentation
can lead to faults, damage and personal injury.

The prerequisite for the Fendt 818, 820 Vario COM III tractor being correctly serviced and maintained is the perfect condition and availability of all necessary equipment, standard tools and general workshop equipment as well as special tools. Special tools must only be used where absolutely necessary. The tools are displayed where they need to be used in each case.

The machine must be maintained according to its proper use. Always replace parts with genuine FENDT spare parts! When ordering parts, please provide the chassis number as per the most up-to-date spare parts documentation.

Workshops should also refer to documentation on maintenance work and technical data. Once maintenance is complete, take a test drive to ensure the vehicle’s correct operation and road safety.