دروس انجليزية للمبتدئين اسماء الوظائف والمهن مقطع مبسط وسريع

•Wipers are designed to keep out small chips and dirt between the slides and the ways.

•Wipers are saturated with oil to catch the fine particles of dirt or debris before they get between the two sliding surfaces.

•The wipers should be removed, cleaned, and re-saturated with oil regularly.

• Never use compressed air for cleaning a lathe Compressed air will push the fine particles trapped in the wiper between the mating surfaces of the slides, causing premature wear on these precision surfaces