Question

In: Mechanical Engineering

Which of the unsafe conditions and acts identified in part b are (a) of a technical nature

 

Case Study

In Francisco Automotive Manufacturing Plant, a large number of engineering activities are carried out in a wide range of areas. These activities include design, production of parts, assembly, testing, and quality assurance.

Many of the manufacturing processes in the plant are performed using automated technologies and equipment. People also perform some of the manufacturing tasks and the plant employs over 400 workers. The decision on whether people or machines will be used for a particular task is dependent on many factors, including costs, time, quality and worker health and safety.

The plant considered here produces a many parts for vehicles and assembles them. Among the parts produced are engine materials and parts, pumps, fans, some exterior parts, and electronics components. The plant normally operates three shifts per day and has production lines including machining equipment, conveyers and overhead cranes, punch presses, and paint-spray booths. The plant utilizes electricity and natural gas extensively.

A number of workers at the plant have over the last six months been subject to several different health problems. The following information has been received by the head engineer at the plant.

a) In an assembly area that was installed recently, workers have to bend to the ground throughout the    day to attach several small parts onto a large and heavy vehicle component. Some workers have          begun to develop lower back pain, likely due to the repetitive bending. The problem has become so      severe for one of the workers that he has been told by his doctor to stay off work for two weeks so his     back can recover. The manufacturing engineers who designed the assembly operation had wanted to    use an automated system, but that option was deemed not to be economic. So they used a manual                   operation, but did not take into account industrial ergonomics, as they had no expertise in that               discipline.

b) An increased incidence of respiratory illnesses has been reported over the last month by workers       operating near the paint-spray booths. Many of the substances used in the booths (paints, solvents,            etc.) are known to be causes of the observed respiratory illnesses. But the workers are not supposed to come into contact with any of the substances because the paint-spray booths are designed to        ensure that all materials exit the plant through a high capacity ventilation system and that no materials can leak back into the plant. No tests had been carried out on the ventilation system, or on            the air quality around the paint spray booths, so it is uncertain whether or not there have been any                      leaks into the plant from the paint-spray booths.

c) In an area of the plant where metal cutting occurs and workers use protective eyewear, workers have reported minor eye injuries. The area in question is one where it is common knowledge that the workers do not routinely use the protective eyewear. It is often observed to be hanging on nearby hooks or to be loosely hanging around the necks of workers. Workers complain that they find the protective eyewear uncomfortable and do not think it is needed or important. The plant manager knows of this behaviour but overlooks it, since enforcing the use of the protective eyewear seems may make the workers unhappy and, consequently, less productive. That, he feels, could render the plant non-competitive.

Questions:

1) Which of the unsafe conditions and acts identified in part b are (a) of a technical nature,

            or (b) related to human behaviour or management?

2) What are some steps can be taken to rectify the health problems observed?

Solutions

Expert Solution

(A) Unsafe condition Observed- Increased Incidence of respiratory illnesses

I think it’s due to technical nature as well as Human Behavior. Technical issues as, improper ventilation, not providing workers protective equipment’s, not providing regular health checks ups, etc. Also, the regular back is caused due to continuous bending throughout the day. This can be reduced but the severe issues is with respiratory illness. Proper Measures can be taken to reduced it out. Measure are given below in next answer.

(B) 1. The Health and Safety Co-ordinator must be appointed. He must do the analysis of “how are you going to do your job and control hazards along the way” and the follow-up site inspections that incorporate observing and talking to the workers, checking their Personal Protective Equipment (PPE) and the paper work. The co-ordinator believes that a site presence is very important. He must be ensure that workers expected to know how to do their job and keep safe. The painters must be possible to eliminate, isolate or minimize the hazards in their own work for example by wearing the appropriate safety equipment’s. Workers must be introduced to the health and safety systems at induction where they are given the main points of the company’s health and safety practices and the site-specific safety measures. This is followed by a visit from the Health and Safety Co-ordinator a month later where he should check that they have understood and are using safe practices and the worker and co-ordinator sign a form attesting to this.

2. The issue of back pain can be sort out by increasing work area. Building pits to stand straight. Assemblies can be overhang to make the worker stand and work. Belts can be provided for the back to minimize the pressure building on back. Regular stops must be taken at particular interval of time for rest. Safety measure must be given to the workers. Regular checkups must be carried out by the doctors. Medical facilities must be provided.


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