Lukas PC 650 - Manual (Page 31)

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11.3.2 Replacing, cleaning and setting the sparking plug
Procedure:
1. Remove the right side panel on the hydraulic power unit by releasing the fi xing clips.
2. Remove the sparking plug lead. The plug is very tight, but is only a push-fi t. However,
when releasing it make sure that you do not tilt the plug or apply a side load to the
sparking plug. In the worst case, this can destroy the sparking plug and it can cause
expensive repairs as a consequence.
4. Unscrew the sparking plug from the engine using a sparking plug spanner with a universal
joint and having a size of 21 mm.
3. If the sparking plug is sooted-up you need to clean it with a sparking plug cleaning agent
or a brush. If the sparking plug is irreparably damaged (e.g. by burning out the electrodes
or by deformation) it must be replaced by a new one.
4. Set the electrode gap to 0.6 to 0.7 mm.
5. Then re-fi t the sparking plug.
0.6 - 0.7 mm
Sparking plug
Sparking plug
connector
11.3.3 Replacing the engine oil and the engine oil fi lter
For the procedure for replacing the engine oil and engine oil fi lter, please refer to the separate
operating instructions of the engine manufacturer! You need to remove the hydraulic tank