Boiler Drum

An important thing to keep in mind but one often overlooked by dinosaur "experts" is the proper loading of the support rods.

Often, the only priority is simply ensuring that the drum (or other sections such as headers, water walls, etc) is horizontal. Once this has been established, torque is applied and jam nuts are installed afterwards. Quality Assurance consists of the use of a "Magic Hammer" whereby each rod is given a whack. If it "pings" the rod is deemed to be tight enough. If it "pongs", additional torque is applied. Quite sophisticated and highly accurate, huh? But, is accuracy necessary? You betcha...

Have a look at your construction drawings. Certain prints will show not only the layout of the support rods but also the necessary load that each rod should carry. The designers spent considerable time and effort to calculate these loads. Unfortunately, most erectors choose to ignore this and, Owners usually don't know enough to question why it's being ignored. Alas, if the loads aren't correct, loss of rod integrity leading to sagging, water hammer, weld failure and even wall collapse are all possible consequences down the road.

who gave you the job . It is the boiler engineer's job from the supplier. Moreover step by step drawing with instructions are sent prior.