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For those who may be interested i have landed a fair bit of work with a forestry guy, who has landed a large contract with Anglia water, It has meant getting his machines A up to regs (ohhh god Anglia water love there HSE) and secondly adapting various pieces of existing kit to fit, new machines, this is going on a 5 ton excavator, instead of being fixed we added a new rotator (middle part), the grapple when I got it in the shop needed to completely come to bits, pins were bent, one claw was cracked all the way down and bushes were shot, so the claw was welded with a 307, new pins were machined and tapped with helicoils for strength, bushes were renewed, and whilst it was split I swagged a new set of hoses,
Top plate was then made shaft was machined to locate on plate and to make a place to plug weld the top, then TIG root, followed by OK, 48.00 (7018) straight from the quiver
top hinge gimble parts were made then welded with exactly the same procedure, the big advantage with using the TIG to root on such thick material is the lack of distortion, also looks good on a procedure sheet, prior to testing.......
last job will be to sewage the pipework for the rotator, then its away for painting (the most important part for testing they love something yellow).....
Top plate was then made shaft was machined to locate on plate and to make a place to plug weld the top, then TIG root, followed by OK, 48.00 (7018) straight from the quiver
top hinge gimble parts were made then welded with exactly the same procedure, the big advantage with using the TIG to root on such thick material is the lack of distortion, also looks good on a procedure sheet, prior to testing.......
last job will be to sewage the pipework for the rotator, then its away for painting (the most important part for testing they love something yellow).....