8 Oct
1999
8 Oct
'99
2:57 a.m.
Since it appears no one can rescue the CDC 9766 drives, I've begun
stripping some bits from one of them (removed one board set already)
and am preparing to remove the PSU during lunch or my next break. Now
then, as time may be in somewhat short supply, can anyone give kindly
me any hints for the easiest way to do this? Noticing the screws in
the side of the slide-out rack, I'm wondering if removing the two
screws on each side will remove it. There also appears to be an
air-hose (used to cool the PSU?) that will have to come off. Is there
some way to eaasily just disconnect the sliding mechanism without
removing the screws? It also looks as though there's some sort of
braided wire (wires?) going into the PSU with no connector that can be
disconencted... blast... the one thing I've misplaced was my
wirecutters, which I, hopefully, won't need.
Any other suggestions for removing any other easily removeable bits
(heads, motor?)?
How do I lift the lid on this drive to access the front panel switches
to remove the switches and light-bulbs? (sorry for the unhackish
question, but time's a bit short).
--
R. D. Davis
rdd(a)perqlogic.com Be careful what you wish for --- you
http://www.perqlogic.com/rdd may get your wish ...and it might not
Tel: (410) 744-4900 be what you were expecting.
8 Oct
8 Oct
3:40 a.m.
Having just shipped on of these beasts to a Friend in Another
Countery(tm)... perhaps I can help a bit.
First, it's a shame that it has to be parted out, but in truth,
there a lot of 9766s about, and they're big and heavy.. 700lb. and
220V, and delicate, and the media is expensive... oh well... still
no excuse not to love them.
The front cover lifts from the back and pivots up at the front
panel on gas shocks. The side panels can then be removed by lifting
up on the two metal square handles on either side. Pull them up and
the sides will fall away, usually onto your foot. :)
The electronica door in the back can be removed by pulling the
lower hinge-pin up using the little metal bar atteched to it for
this purpose. Cut or unscrew the bondong wire. Same for the front
door, and the side panels.
The PSU slides out on regular chassis tracks, which have a clip
release at the end of the extended travel. Remove all the wiring
first, then extend the PSU until it stops, then find and depress the
tabs on the outside middle of the slide tracks and withdraw the
PSU... and watch it... it's close to a 100lbs, tho it doesn't look
like it. (If the 'braid' you mention is flat and silver, it's a
ground bonding conductor... unscrew it or cut it. If no other
tools, you can just work it back and forth at one of the connectors
untill it frays and breaks. Been there, done that, got the t-shirt.
Take off the top inside cover and try and get the heads out... I
have never removed them, but apparently they can be gotten quite
easily. Also the head-amp card cage and associated wiring.
If you're really ambitions you could remove the HEPA filter and
the disk spindle assembly... the rest of it's scrap at this point.
snif,,snifff.. :(
Hope this helps a little.
Cheers
John
4:18 a.m.
Quothe John Lawson:
Having just shipped on of these beasts to a Friend
in Another
Countery(tm)... perhaps I can help a bit.
First, it's a shame that it has to be parted out, but in truth,
there a lot of 9766s about, and they're big and heavy.. 700lb. and
220V, and delicate, and the media is expensive... oh well... still
no excuse not to love them.
Alas, I thought I could at least part them out, now I'm told that I
can only remove small bits like the boards, but not take them away yet
unless the scrap dealer doesn't want them (or will sell them). Like
the Autologic system, these have to go out the door in one piece, so I
have to wait to talk with the scrap dealer to see what I can take
away... hopefully I can get the PSUs from these. :-(
Thanks for the information; I'll save it for future reference. It's
so much more pleasant to put things together and see them working, and
preserved, than to have to take things apart knowing that they'll not
be reassembled to form a working system or peripheral again. I hate
to see anything scrapped, it's such a terrible waste. New computer
systems are just boring compared older systems and the sounds of such
things as a 14" disk drive spinning up, etc. If I'd started working
with computers today, instead of with systems that required a room
with special power and air-conditioning, I'd probably not have become
as interested in computers.
The front cover lifts from the back and pivots up at
the front
panel on gas shocks. The side panels can then be removed by lifting
up on the two metal square handles on either side. Pull them up and
the sides will fall away, usually onto your foot. :)
Ouch! That little problem called gravity at work ...at least it's not
like the side of a full-height rack dropping or a horse stepping one's
foot and then standing there staring at one, not wanting to move; it
will painless comparted to that. :-)
The electronica door in the back can be removed by
pulling the
lower hinge-pin up using the little metal bar atteched to it for
Got the boards out. I think I see some not-too-easy to find chips
I can use for for my 11/44 with an intermittent CPU problem.
The PSU slides out on regular chassis tracks, which
have a clip
release at the end of the extended travel. Remove all the wiring
first, then extend the PSU until it stops, then find and depress the
tabs on the outside middle of the slide tracks and withdraw the
PSU... and watch it... it's close to a 100lbs, tho it doesn't look
Wow! It looked somewhat heavy, but I didn't realize it was that heavy.
Before being told I couldn't take the drives apart any further, I was
all set to carry all four of these from the front hallway back to my
office (one at a time, of course).
like it. (If the 'braid' you mention is flat
and silver, it's a
ground bonding conductor... unscrew it or cut it. If no other
tools, you can just work it back and forth at one of the connectors
untill it frays and breaks. Been there, done that, got the t-shirt.
Me too. Used key's to saw through things, etc. :-) It looked like a
thickish copper braid.
If you're really ambitions you could remove the
HEPA filter and
the disk spindle assembly... the rest of it's scrap at this point.
Already got three HEPA filters, and a few springs before being told to
stop; they're sitting here next to my chair.
snif,,snifff.. :(
:-(
Why to I get the feeling that some funeral march music should be playing?
Do I hear pipes and drums off in the distance?
Hope this helps a little.
Yes, thanks.
--
R. D. Davis
rdd(a)perqlogic.com Be careful what you wish for --- you
http://www.perqlogic.com/rdd may get your wish ...and it might not
Tel: (410) 744-4900 be what you were expecting.
4:43 a.m.
Last Thought: Find out where the scap dealer is taking the
drives, and make a deal with him to remove the stuff you want (for a
fair price)... then you have the leisure to work on them and you
can get the best use from the Old Beasts...
Cheers and Good Luck!
John
6:36 a.m.
The PSU slides out on regular chassis tracks, which have a clip
release at the end of the extended travel. Remove all the wiring
first, then extend the PSU until it stops, then find and depress the
tabs on the outside middle of the slide tracks and withdraw the
PSU... and watch it... it's close to a 100lbs, tho it doesn't look
like it. (If the 'braid' you mention is flat and silver, it's a
ground bonding conductor... unscrew it or cut it. If no other
tools, you can just work it back and forth at one of the connectors
untill it frays and breaks. Been there, done that, got the t-shirt.
Hope this helps a little.
Cheers
John
There's two varients of Power Supply -- VDE and NON-VDE.
I believe the VDE is just screwed in without the chasis tracks.
Bill
---
bpechter@shell.monmouth.com|pechter@pechter.dyndns.org
Three things never anger: First, the one who runs your DEC,
The one who does Field Service and the one who signs your check.
1:58 p.m.
New subject: removal
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Hermz
^^^^^^^
Is da man!
3:35 p.m.
New subject: removal
I would love to stay on the list, but I just don't
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anyone could tell me how to unsubscribe? Thanks alot buh bye!
Sorry to hear you're busy. The list has a way of sucking up time.
Send a message to
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-- Derek
9206
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6 comments
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participants (5)
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dpeschel＠u.washington.edu -
Hermz1＠earthlink.net -
jpl15＠netcom.com -
pechter＠pechter.dyndns.org -
rdd＠smarty.smart.net