The Craftmans Shop > New from Old
It's BIG, Yellow and digs holes! JCB 3CX Project 8 is joining the Tractor Shed
hermetic:
It is passing signal, but not current, once the deadly green has got into this era of wiring harness it is toast, you are going to have to replace the wire from the fusebox to the cab. Problem is, if you bend another area of the cable, if it is internally corroded, it will fault again!I am usually an avoider of replacing cable runs as opposed to repairing them, but in this case I think you will have to!
Phil (recovering slowly)
Sea.dog:
That cable looks as though it's been shorted at some stage causing to overheat and burst the insulation, allowing water ingress.
awemawson:
That wire in the loom is the only one in the wet area (ie under the floor and exposed) that is permanently powered up.
Anyway a bit more progress - I chased further up the loom, found another swollen bit of cable with green ooze, went to try and strip back to uncoroded copper and it broke off - fully sulphated and horrible. it's now far too short and near the hole in the floor that it will need completely replacing.
So the hunt is on to find how it gets to the fuse box. It turns out that the hole that it initially passes though in the floor is actually within a space round the hand brake and hydraulic controls for the front shovel, adjacent and butting up to the actual side console. Taking the rubber boot off the hand brake (an operation requiring Hellerman Oil!) within I can spy what appears to be two circular connectors joining the loom.
The cover is retained by four screws - three came off and the fourth one so far has defeated me. It fixes into a captive nut in the floor that is turning, and needless to say it's upper side is between the cover itself and the seat and needed three extension bars on my 3/8" socket set to even get a socket on! I have managed to get a snipe nosed Mole Wrench to grip the plastic housing of the captive nut but it still turns. When I can borrow another pair of eyes to confirm that I've got the right captive nut while I turn it from above I'll make up a long cold chisel and chop the nut off.
I did take pictures inside the cover with my endoscope camera, but it puts it's photos on a micro SD card and it turns out I don't have a reader :bang: (One on order now !
enough for today - play resumes tomorrow.
russ57:
How do you feel about a wifi controlled light?
-russ
vtsteam:
Capillary movement of electrolyte from moisture and dirt through an opening or insulation crack down the length of stranded wire, creating galvanic corrosion in a continuously powered circuit, which happens to be in close proximity to a surrounding wetted mesh ground (earth - .Br.).
Or,
what hermetic said.....
time for a new wire.
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