<When special tool MB992273 is used>
1. Sufficiently apply the brake cleaner to the plug end.note | Repeatedly applying the brake cleaner is acceptable during the cleaning. |
2. Using special tool MB992273, intensively clean the electrode for 1 to 2 minutes.note | Even if using strong force, the electrode is not damaged. |
note | In case of insufficient cleaning, it is permissible to take longer than 2 minutes for cleaning. |
3. After the cleaning, sufficiently remove and then dry both of the carbon and the brake cleaner on the plug, using a waste cloth or air blowing.