When writing preventive maintenance (PM) procedures that require multiple grease guns to be taken up ladders and stairs, add a stop point in the PM that states, for example, "Before ascending these stairs, make sure you have guns A, C and D." This prevents technicians from having to carry too much equipment up flights of stairs or ladders, which is a safety benefit. It also keeps them from reaching the top of the stairs with the incorrect guns and mixing greases in the equipment, which can lead to premature failures. (Patrick Walsh, BHP Billiton)
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