Develop a different system for marking the slabs. Use of a marking tag which is nailed in place using a different type of fastening tool should reduce the stress of the task. The Hilti DX-36M can be used to attach metal tags to the slab. The use of this type of device if used manually will reduce non-trigger finger exertions. This design should be able to be mechanized more easily since the alignment of the tool with the end of the slab will not be as critical.
Employees use repeated, extended and elevated reaches to perform slab imprinting.
Frequent reaches present a hazard as extending the arm creates a weak position in terms of arm strength. Fully extending the arm is consistent with fatigue rates which are approximately 2 to 3 times faster than when the arm is bent and kept in close to the body. Frequent reaches are consistent with the development of acute shoulder, upper arm, and upper back muscle and tendon fatigue and injury such as strains, sprains, and tears. Abducting the elbow also stresses the shoulder and increases the risk of acute and chronic injuries similar in nature to those associated with extended and elevated reaches. Reduce the distance employees must reach to perform assembly tasks.