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| After adding grease to a ball bearing with a handheld grease gun, you should __________. |
| A) close the bearing housing drain and add a little extra grease to compensate for air pockets in the bearing |
| B) run the machine with the bearing housing drain plug open for a short while |
| C) save the used grease for chemical analysis |
| D) remove the grease fitting and leave open to allow excess grease to escape |
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