The Craftmans Shop > New from Old
It's BIG, Yellow and digs holes! JCB 3CX Project 8 is joining the Tractor Shed
awemawson:
Well I got quite a bit more done this afternoon:
a/ New longer tabs drawn up in Autocad and cut out on the CNC Plasma table
b/ Old tabs cut off and remains of the bracket trimmed up
c/ Forward arm for the pipe support trimmed more neatly
d/ New tabs and bracket drilled for 8 mm bolts to fix back together
e/ Bracket assembly loosely put together and offered up to the clamp bolts to test the 38 mm hole spacing.
NB the nuts were left on the the clamps bolts so the back actor was safe and an other pair used to pull the bracket into place.
I suspect that a bit of fettling will be needed for the final fit - I'm not certain the the pairs of 8 mm bolts holding the new tabs on will clear the body of the hydraclamp - time only will tell.
So a bit of fettling then drill the forward part of the pipe clamp to match, then dissemble, clean up and paint before final assembly. Probably not for a couple of days as we have house guests coming for the weekend.
awemawson:
This morning I managed to finish the fettling. It was just a case of relocating the new tabs to the other side of the original tab stub to give enough clearance for the body of the hydra-clamps.
I then with great trepidation drilled the holes in the bracket that is still attached to the 1" BSP breaker oil feed - very easy to put the drill right through the hose especially as acess is fraught - anyway I didn't :thumbup:
So all that remains is to remove the assembly, strip, grit blast and paint, and re-assemble using shake proof nuts. Then the hydra-clamps can be properly torqued down, tab washers locked on and any air bled from them.
awemawson:
House guests this weekend so not much done, however my muscular son had a go at undoing the nuts for the upper hydra-clamps - no, no joy I will have to cut them off when the time comes.
Meanwhile I've just grit blasted and sprayed the modified lower bracket in red oxide primer - hopefully it'll be RAL 1007 JCB yellow tomorrow !
awemawson:
I got the first coat of RAL 1007 JCB Yellow on this morning before 09:00. Hopefully this will let me put the top coat on in the late afternoon to give it over night to harden up a bit.
awemawson:
This morning I re-assembled the breaker hose bracket that I recently painted and re-installed it on the lower hydra-clamp bolts.
I won't torque them up until I've sorted out the upper clamp stuck bolts. Apparently there is a lug projecting from the clamp plate that slides in the rear channel and take the weight of the back actor. This lug engages with a flat on the 38 mm bolt head to stop rotation and it seems that we managed to sheer a bit of it off in our attempts to free the stuck nut. New one on order. Also on order is a longer reciprocating saw blade to cut the bolt off.
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