Massey Ferguson 4707, 4708, 4709, 4710 Tractor Workshop Service Manual

Manual Table of Content

1 Introduction
2 Separation of assemblies
3 Engine
4. Clutch
5. Gearbox
6. Rear axle
7. Power Take Off
8. Front axle
9. Hydraulics
10. Electricity
11. Electronics
12 Operator environment
13 Service tools

Consequences of use of fuels with 1st generation biodiesel blends
If you use biodiesel blends from 10% to 20%, you must consider the risks:
• Possible power and fuel economy reduction even up to 6%.
• Reduced fuel flow in cold environment.
• Possible fuel filters restriction and plugging.
• Possible fuel leakage through damaged seals and hoses.
• Possible coking of fuel injector nozzles.
• Possible engine oil dilution.
• Possible high acid levels within fuel system.
• Possible compatibility issues with other materials (including copper, lead, zinc, tin, brass and bronze)
used in fuel handling process.
• Reduction of service life on engine and exhaust system systems (SCR and cEGR).
• Increase of engine emissions that can lead engine to de-rate on SCR engines.
All the above mentioned risks are bigger with higher than 20% biodiesel blends. In addition higher
biodiesel blends cause other problems:
• Blockage of injector nozzles, resulting loss of power and engine malfunction.
• Crankcase oil soot formation, which results in shorter oil and oil filter lifetime.
• Corrosion of fuel injection equipments.
• Seizure of engine or internal components of the injection system.