Information on this page is drawn from "Carpenter: Reducing risk factors when installing overhead filters by changing work methods" published by intel

NOTE: Request for permission pending.

Task

Installation of ceiling filters into the overhead grid in clean room.

Exposure

A blank filter panel weighs 40-50 lbs.. Filters weigh 30-40 lbs.. Two blanks to every one filter are installed into overhead ceiling grids. One worker picks up a filter or blank and adjusts his hold by propping it on his thigh. This is complicated by lab jackets that have a slippery surface, making lifting more difficult. He then lifts it up to the worker on the scaffold which requires lifting above his shoulders. The other worker then lifts it over his head into the ceiling grid. They place 100 per day and have two crews performing this task. They are thus exposed to musculoskeletal risk from repetitive motion, awkward posture, and forceful exertion.

Intervention

(1) Explore the possibility of replacing long lab jackets with shorter ones. (2) They rotated every two hours to another task that does not require lifting of heavy materials. (3) Stretching exercises were also performed frequently throughout the shift. Workers felt these were an improvement, and they experienced less fatigue. They were diligent about job rotation and frequent stretching throughout the shift. These interventions have not reduced or eliminated the risk factors. Redesign of filtration system materials or identification of a material handling tool are two areas that would benefit this task.

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Carpenter: Reducing risk factors when installing overhead filters by changing work methods