HATZ Diesel 1D90 - Manual (Page 20)

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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 and starting handle out of reach of unauthorized persons.
To immobilize engines with an electric starter, 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
Maintenace intervals Maintenance work required Chap.
Every 8 – 15 operating
hours or before daily
starting.
Check oil level.
Check area round combustion air input.
Check the air cleaner maintenance indicator.
Check the cooling air zone.
Check the water trap.
Check the lower part of the oilbath air cleaner for
correct oil level and freedom from dirt; renew oil if
sludge has formed. 5.2.1.
5.2.2.
5.2.3.
5.2.4.
5.2.5.
4.1.2.
5.3.1.
Every 250 operating
hours
Maintenance of oil bath air filter.
Replace engine oil and oil filter.
Check and adjust tappet clearance.
Clean cooling air system.
Examine screw connections.
Cleaning mesh insert in exhaust silencer 5.3.1.
5.3.2.
5.3.3.
5.3.4.
5.3.5.
5.3.6.
Every 500 operating-
hours Replace fuel filter.
Maintenance of dry-air filter. 5.4.1.
5.4.2
8-15
500
250