5. Maintenance
The engine must be stopped before any maintenance work is attempted.
Comply with legal requirements when handling and disposing of old oil, filters and
cleaning materials.
Keep the engine’s starting key out of reach of unauthorized persons.
Disconnect the negative battery terminal.
At the end of the maintenance work, check that all tools have been removed from the engine and
all safety guards, covers etc. replaced in their correct positions. Before starting the engine, make
sure that nobody is in the danger area (engine or driven machinery).
5.1. Maintenance summary
Maintenance intervals Maintenance work required Chap.
21
Every 8 – 15 hours of
operation, or before
each daily start-up
Every 250 hours
of operation
Every 500 hours
of operation
Every 1000 hours
of operation
Check oil level.
Check combustion air intake area.
Check the cooling air system
Engine oil change (2 M 41 without sump,
2...4 L 41 and 4 L 42 in general).
Clean fan, cooling fins and oil cooler.
Check tightness of threaded connections.
Cleaning of mesh insert in exhaust pipe.
Check water trap
Check for contamination of fuel pre-filter, renew if
necessary.*
Checking operation of air cleaner maintenance
indicator.
Do not tighten the cylinder head nuts.
Renew the fuel pre-filter.
Air cleaner maintenance.
Check and adjust valve clearances.
Engine oil change (2 M 41 with sump,
3...4 M 41 and 4 M 42 in general).
Renew the oilfilter.
Renew the fuel filter
5.2.1.
5.2.2.
5.2.3.
5.3.1.
5.3.2.
5.3.3.
5.3.4.
5.3.5.
5.4.1.
6.1.
5.4.1.
5.4.2.
5.4.3.
5.4.4.
5.4.5.
5.5.1.
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