FENDT 938 Vario MT, Workshop Service Manual, Page: 28 / 51

1.6 Engine service information
1.6.1 Maintenance chart
Maintenance chart for tractors and forest machines with 84 - 98 engines.
Maintenance work Service interval / running hours
10 100 400 800 4500
Check engine oil level x
[1]
Check coolant level x
[1]
Check for oil, fuel or coolant leakages x
[1]
Clean cooling system (from outside) x
Check the condition of the belt x
Change engine oil and oil filter x
[2]
Change fuel filters x
[3]
Do a check for a possible engine software update
[4]
x
Adjust valves
[5, 6]
See Valve adjustment intervals table.
Turbocharger and intercooler inspection in a repair
workshop
x
Change the SCR supply module main filter Once a year.
[7, 8]
Change the SCR supply module inlet filter Once a year.
[7] [8]
Change coolant Every two years.
Change the vibration damper (98 engines) Every five years.
[9]
[1]
or once a day.
[2]
or once a year (in the autumn).
[3]
or once a year (at the end of the season) or earlier if the engine control system notifies by specific service code.
[4]
Always do an engine software update, if there is an update available.
[5]
The 98 engines have hydraulic lash adjusters from the engine serial number B52904. Do not adjust the valves.
[6]
In the spring 2016, AGCO Power started to install hydraulic lash adjusters gradually to different 84 AWF engines.
See for information, how to recognize an engine with hydraulic lash adjusters. Do not adjust the valves of an
engine, which has hydraulic lash adjusters!
[7]
or after 1200 running hours.
[8]
In North America: Every two years or after 1600 running hours.
[9]
or after 8000 running hours.
Valve adjustment intervals
[1, 2]
1st 2nd 3rd 4th 5th
400 2000 4000 6000 8000
[1]
The 98 engines have hydraulic lash adjusters from the engine serial number B52904. Do not adjust the valves.
[2]
In the spring 2016, AGCO Power started to install hydraulic lash adjusters gradually to different 84 AWF engines.
See for information, how to recognize an engine with hydraulic lash adjusters. Do not adjust the valves of an
engine, which has hydraulic lash adjusters!
[V]
GUID-17E4A930-284E-4A00-9464-8EB5C203E968 [V8]
1. General
Rubber Track Tractor 1-25
79037495A