A 3rd party engineer was hit by the ssm.He went to the hospital and it was found that his leg was bruised.There were no bone irregularities and he was instructed to rest and that he would be able to walk on his own in four days.The trolley was set up in accordance to service instructions and the engineer assembled the trolley according to the instructions.The final step in this set-up is to insert the cotter pin into the trolley rod.There are cases where, due to the position of the cotter pin hole, washers must be removed and the trolley must be adjusted so that the trolley width and the rail width match.The service manager on site instructed the engineer to check and adjust the width of the trolley.The width was incorrect and this resulted in the fall of the ssm.There was no step in the instructions to verify the width of the trolley.This is being rectified in the installation instructions.
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