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Onan Genset Genset Maintenance
9.3 Changing the Engine Oil and Oil Filter
Requirements
Engine warm
New oil filter
Fresh, clean oil
Draining oil
Perform the procedure below to change the oil and oil filter.
Note: In the interests of environmental protection, place a plastic sheet and a
container under the machine to collect any liquid which drains off. Dispose of this
liquid in accordance with local environmental protection laws.
1. Operate the genset until warm, then stop the engine.
2. Pull the oil dipstick/plug out approximately 5 cm (2 in.) to allow the oil to drain
faster.
3. Remove the front and bottom access covers.
4. Position the drain hose (a) into a container.
5. Open the drain valve (b) and drain the used oil. Dispose of used oil in
accordance with local environmental protection laws.
6. Close the drain valve.
This procedure continues on the next page.
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a
b