Lifting TLV - Another worker in the same factory lifts finished chairs off of th
ID: 2087051 • Letter: L
Question
Lifting TLV - Another worker in the same factory lifts finished chairs off of the assembly line and loads them onto racks for bagging as part of his job. The finished chairs weight 10.2 lbs. The horizontal distance of the lift is in the "extended zone" due to the awkward chair shape and the vertical movement takes the chair from approximately knuckle height to below shoulder height. The worker lifts as many as 320 chairs in a typical eight hour shift. 4. On average, how many lifts per hour does this worker perform? 5. Which Lifting TLV table should you use to assess this worker? Why? 6. Is the worker overexposed to the TLV? 7. What controls do you lifting related MSD? to reduce the risk of this worker developing aExplanation / Answer
4)
Total no.of chairs lifted for 8 hrs = 320
No. of working hours = 8 hrs per day
Average no .of chairs lifting per hour = 320/8 = 40 chairs per hour
5)
According to American conference of Industrial Hygienists(ACGIH) , the lifting Threshold limit value (TLV) table you should use to assess this worker in lifting objects is Table-3 which is for Frequent and Long duration. we have chosen this because the worker is working for more than 2 hours and lifting more than 30 chairs per day. so we have consider the table 3
6)
Yes, the worker is overexposed to TLV
Given finished chairs weight is 10.2 lbs
From Table-3, For the extended horizontal zone and lifting from knuckle to below shoulder in the vertical zone , the safe weight that can be lifted is 10 lbs.
We can see clearly that , the weight of chair is more than safe weight for the given conditions. so, we can say clearly that the worker is over exposed to TLV.
7)
some of the controls generally recommended for reducing the risk of this worker developing a lifting related MSD
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