Engineering Controls
Probably the most effective means for controlling and eliminating MSD hazards is
through engineering controls that fit the task, workplace and tools to the worker.
Adjustability of workstations is the key to making the workspace fit every worker and
preventing awkward postures. The desired effect of tool redesign is to limit tool weight
& vibration and to allow hands, wrists and arms to remain in a neutral position during
use. E-Z grip handles and squeeze activation of powered tools work to minimize grip,
trigger and pinch hazards.
Benefits of Engineering Controls
Engineering controls are permanent and relies on a minimum amount of training for
specific behaviors.
Engineering controls less likely to fail than administrative or personal protective
equipment. It is easy to visually ensure that the controls are in place and effective.
Engineering controls are OSHA's preferred method of MSD hazard control and
elimination.
Engineering Control Basics
Change the way material are moved — use mechanical assist devices to relieve heavy
load lifting and carrying tasks, or use handles or slotted hand holes in packages requiring
material handling.
Change the process or product to reduce worker exposures to risk factors - engineer
production parts for easy and fast assembly to reduce manual forces required
Modify containers for more accessible parts supply, such as by using height-adjustable
material bins.
Change workstation layout - use height-adjustable work tables, locate tools and materials
to within short reach distances.
Change the way parts, tools, and materials are handled - use fixtures such as clamps or
form fitting material rests to hold work pieces. This eliminates the need for awkward
hand and arm positions
Suspend tools to reduce weight and allow easier access.
Change tool design - pistol handle grips for knives to reduce wrist bending postures
required by straight-handle knives or squeeze-grip-actuated screwdrivers to replace
finger-trigger-actuated screwdrivers.
