![background image](http://html1.mh-extra.com/html/fendt/vario-mt-938/vario-mt-938_workshop-service-manual_4050757038.webp)
1.6.8 Maintenance to be made at 4000 hours intervals
1.6.8.1 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. 30
1.6.9 Maintenance to be made once a year or 1200 hours
1.6.9.1 SCR system maintenance
AGCO POWER SCR system is durable and almost maintenance free. Only main filter change for supply
module is required in normal use. AGCO POWER SCR is equipped with on-board diagnostic, which will
warn the operator or limit the usage of the machine if any problems (e.g. leakages or blocking of lines)
occur in the system.
NOTE:
Engine with aftertreatment system meets EU97/68/EC Stage lV and EPA 40 CFR 1039 Tier 4 final
emission requirements.
Do not fit any components on the engine other than those originally intended for it. The use of other than
original AGCO Parts spare parts invalidates the responsibility of AGCO Power Inc. on the meeting of the
emission requirements.
CAUTION: Make sure that genuine DEF (DIN 70070 or ISO 22241 certified) is used as a
reducing agent.
Diluting of DEF or mixing it with other substances is not allowed, it may damage the
catalyst!
CAUTION: Make sure that genuine DEF (DIN 70070 or ISO 22241 certified) is used as a
reducing agent.
If urea quality sensor detects a problem related to urea quality, it will alert the engine
control system via CAN message thus causing the engine to run under degraded mode.
CAUTION: Even small amounts of diesel fuel in DEF tank may damage the gaskets of the
SCR system!
[V]
GUID-85E73C9E-514F-444F-BC22-B09705AA08F2 [V2]
[V]
GUID-0738A23D-77EE-4FB0-94BE-668A6183EB4A [V3]
1. General
Rubber Track Tractor
1-35
79037272A