At 12:46 PM 14/01/2013, you wrote:
Update: So, I got the bottom screws out and the screw spacers (and the end
cap came off already), but I'm having a heck of a time getting the whole
thing out from the contactor (front) side. I've used a jewelry "saw" to cut
around the edges on the contactor side, but it doesn't want to come out at
all. Am I just not cutting down enough through the resin (I've gone down
only about 2mm or so)
Has anyone done this have any wisdom to impart? This is a 1221C-7401.
Thanks - Dan
G'day Dan
Depending on generation, end cap should just prise off, leaving the
sealant behind. If it is a later one, the sealant should be a layer
1/4" or so thick that was poured so that it cured laid on the back of
the end cap, it'll chip out in rubbery chunks. Scrape back around the
end you are going to pull out through, as the clearance is tight, and
a lip of sealant will make it hard to get out, clean edge and a clean
slide out.
Once that is done, put a few of the bottom screws back in about 1/2
way, and push hard on them (starting close to one end) this will
release the thermal conductive/electrically insulating sheet from
between the internal heatsink and the case. If you have all the screw
insulators out, the "guts" should just slide straight out at this
point, nothing else to hold it there. As you start to slide it out,
watch for the sheet, it may be stuck to the internals one end and the
external the other, one way around means it'll be holding the
internals back, the other way will fold the sheet over as you pull.
If you are replacing this (and 50% or more of the time you'll need to
as it de-laminated coming apart) then just rip it out, but if you
want to try and re-use it, be a little careful to wiggle a thin
ruler/etc through to release it.
Hope this helps, and on the EVtech discussion list there is currently
discussion of a 1205 repair, might pay for you to join that discussion.
Regards
[Technik] James
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