Note
These instructions only apply to Series 1 and Series 2 Shaft Grounding Assemblies. The Series 3 Shaft Grounding Assemblies to not require welding.
The attachment arm is made of 300 series stainless steel. TIG welding is the preferred welding method. If a weld filler is needed, AWS E/ER 308, 308L, or 347 are acceptable.
NOTE:
The customer must provide a qualified welder to perform support arm welding.
To weld the attachment arm
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Begin by tack or stitch welding at the marks. The goal is a “stitch” or “fuse” weld. No additional welding material needs to be added at this time. The arm joints simply need to be locked in place by the tacks.
CAUTION
If the tacking step is overlooked and the welder commences to weld the seam, the attachment arm positioning will be compromised, resulting in a distorted arm, which is unusable and must be replaced.
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After tack welding, proceed to weld all of the seams as indicated with the red lines shown in the illustration below. Weld both ends and follow accepted welding practices to minimize distortions that would compromise proper alignments.
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Return the fully welded arm to the Cutsforth technician for final assembly on the generator.