Lifting/carrying (supplies, replacement parts, ladders, etc.) Over 150 lbs Rare need (less than 1%) Between 75 - 150 lbs Occasional need (1% to 33%) Between 25 - 75 lbs Frequent need (33% to 66%) Between 1 - 25 lbs Constant need (66% to 100%) . Handle maintenance tools, nails, and open/close ladders, perform routine maintenance/repairs, use telephone, pager, 2-way radio.