12/31/2022 0 Comments Lifting points guide pdf free download![]() ![]() The employee sustained an avulsion of the fingertip. ![]() The dewar continued sliding down the cart and came to rest on the floor. The employee's middle finger of his left hand, which was curled underneath the handling ring, was caught between the handling ring and a horizontal steel support member of the cart. As he pulled back on the cart and dewar, the lifting pin disengaged from the post slot and the dewar rapidly slid down the cart. He then placed his left hand on the handling ring and his right hand on the cart handle and began to tilt the cart back and down onto its wheels. The lifting slot is located in the handling ring support post near the top of the dewar. The employee stood the cart up next to the dewar and inserted the cart lifting pin into the slot provided for this purpose. 2ģ Dewar Incidents Incident #1 An employee was attempting to move a 160 L liquid nitrogen dewar using a dewar cart. A dewar is specifically designed for transporting cryogens and is protected with safety devices. NOTE: Do not panic if the dewar should slip and fall to the floor. Ask your supervisor or knowledgeable employee for assistance. If you do not feel comfortable operating a certain cart, STOP. ![]() ALWAYS place both hands on the dewar cart handle. NEVER place a hand on the ring when tipping the cart backwards. Use proper body position and body weight when tipping the dewar backwards towards you to avoid straining the body. Always check the welds on the dewar ring posts (where the dewar lifting points are located) for cracks. Always inspect the transport cart, and take it out of service if it looks to be in need of repair. Dewars come in different sizes and the lifting points change from dewar to dewar, which requires that the dewar cart be adjusted accordingly. ![]() Transporting dewars on inclines can be particularly hazardous. Dewars are very heavy and must be handled properly to prevent serious accidents and injury. Things to remember when handling dewars: 1. Once you have been given time to review this handout with your supervisor, your supervisor will walk you through the proper procedures for moving dewars and then evaluate you in a hands-on scenario to complete your training. This handout will provide instructions on safely using different methods of transportation of these dewars. Several of these incidents are highlighted below. Transportation of these dewars using a standard cart can be dangerous as apparent by several injury-producing incidents that have occurred within the DOE labs. These liquefied gasses are sometimes transported in large dewars weighing up to 600 lbs. 1 Transportation and Lifting of Liquefied Gas Dewars FN000475/OJ 1Ģ Fermilab uses liquefied gasses or cryogenics in various forms around the lab. ![]()
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