It appears that this task could be done by most employees with a minimum of training. Employees should be frequently rotated through this position. Rotating a different person every day of the week should provide sufficient periods of rest, but any other rotation schedule which reduces the frequency and severity of injuries would be appropriate. Work-rest schedules should be developed and enforced. Generally, a minimum of a 15 minute rest break at least every two hours is required.
Employees perform repeated, forceful finger exertions with the wrist in a deviated posture.
The primarily cause of this stress is associated with activation of the secondary safety and to provide controlled placement for the DX-650 imprinter during task performance. Additionally, holding the Hilti Nail Gun with only one hand while performing the nailing function places considerable strain on the wrist and fingers of the trigger hand. Deviating the wrist while exerting repeated finger force pulls the tendons across the bony and ligamentous entities in the wrist. This action can cause contact trauma to the tendon and sheath leading to abrasion, fraying, and inflammation and swelling. Continual use of these actions and postures is consistent with the development of tenosynovitis, tendinitis, and carpal tunnel syndrome.