![background image](http://html1.mh-extra.com/html/fendt/938-vario-mt/938-vario-mt_workshop-service-manual_4002006035.webp)
7.
Start the engine. The fuel system removes automatically the air left in the system.
NOTE:
Do not use the hand pump when the engine is running. Do not use any tools or excessive
force on the pre-filter hand pump.
NOTE:
The fuel system is equipped with a pressure sensor that alarms before interference has
developed. Reasons can be for instance:
• Empty fuel tank.
• Clogged fuel filters.
• Suction piping clogged or leaking air.
• Unsuitable fuel (e.g. summer fuel in the winter).
NOTE:
Use of spirits as antifreeze is not useful or recommended at all. It makes the fuel solidify and
weakens the lubricating qualities of the fuel and increases the possibility of corrosion.
1.6.7 Maintenance to be made at 4000 hours intervals
1.6.7.1 Check turbocharger play and check that the intercooler cell is clean
The turbocharger and the intercooler cell service
must be entrusted to an expert technician at
AGCO Power Service.
It is essential to carry out regular engine services
to keep the turbocharger in good condition. Special
attention must be paid to the cleanliness of the air
filter cartridge and to the engine oil and oil filter
change at recommended intervals. Check regularly
that the turbocharger is properly fitted to the
exhaust manifold as well as the tightness of the
inlet and exhaust manifold joints. Correct
adjustment of the injection equipment is essential
for the operation of the turbocharger.
When a new turbocharger is installed, pour about
0,1 ltr of pure engine oil into the bearing housing
before attaching the pressure oil pipe. Ensure that
no impurities are entering the turbocharger with
the oil.
GUID-6B03777A-6985-40C2-AC63-DCD2CD921CCF-low.jpg [Low]
Fig. 29
1.6.8 Maintenance to be made once a year or 1200 hours
1.6.8.1 Selective Catalytic Reduction (SCR) system maintenance
The AGCO POWER Selective Catalytic Reduction (SCR) system makes sure that the engine is in
compliance with emission regulations. In usual use replacement of the main filter and the inlet filter of the
supply module is necessary. The AGCO POWER Selective Catalytic Reduction (SCR) system has on-board
diagnostics. The on-board diagnostics will tell the operator or limit the use of the machine if a problem
occurs in the system (for example leaks or line blockages).
NOTE:
Engines with the aftertreatment system are in compliance with (EU) 2016/1628 Stage V emission
regulations.
When you do maintenance you must use replacement parts that are equivalent in performance and
specification to AGCO Parts. The responsibility of AGCO POWER on the correct compliance of the
emission specification is removed when:
[V]
GUID-85E73C9E-514F-444F-BC22-B09705AA08F2 [V2]
[V]
GUID-0738A23D-77EE-4FB0-94BE-668A6183EB4A [V7]
1. General
1-32
Rubber Track Tractor
79037495A