9 Apr
2012
9 Apr
'12
12:29 a.m.
Just looked at the pics, andlots of pack boxes in and on the cabnets.
Looks like a BA11-FE expansion box in lower left cab.
I've worked on numerous RK05-F's, abd they show up as 2 logical
drives. you can convert to/ from an F. the inner parts are just the
linear posistioner and the heads. the door can be rigged and any pack
that matches your controller(12 or 16 sector) can be reformatted. It's
pretty simple if you have the parts.
Paul
On Mon, Apr 9, 2012 at 2:18 AM, Paul Anderson <useddec at gmail.com> wrote:
Yes, the piece coming out of the abs filter used to be
made out or a
materal that would crumble after a nomber of years. It was replaced
with a newer one with a much longer life cycle. I think it has the
same part number.
And I agree, they are a dream to work on.
Paul
On Sun, Apr 8, 2012 at 8:57 PM, Dave McGuire <mcguire at neurotica.com> wrote:
> On 04/08/2012 09:47 PM, Ethan Dicks wrote:
>> I saw one in 1984. ?It was damaged beyond what appeared unreasonable
>> to repair at the time, but today, I'd probably give it a shot. ?I did
>> get the RK11-C and an RK05J. ?I haven't tried to restore the RK11-C
>> but I've used the RK05J with an RKV11D.
>
> ?Niiiiice!
>
>>> ?I do like RK05s. ?Actually I very much like most of DEC's big drives.
>>
>> They are easier to repair than many other drives. ?I've found the lamp
>> in the positioner a common point of failure - easy to spot, too -
>> power up the drive and look through the door - if you don't see the
>> light, the lamp is probably blown. ?Head crashes are not uncommon, but
>> the heads are pretty robust. ?I haven't done it myself, but I've read
>> tales from other members about vigorous cleaning of heads after crash
>> events. ?I've also heard of blower motor insulation failures that have
>> been known to be somewhat catastrophic, so if you are powering up a
>> long-stored drive, inspect the motor and the air path. ?I'm sure there
>> are other tips in the list archives (like always mounting a scratch
>> monkey ;-).
>
> ?Agreed on all points. ?One other failure mode I've seen is the
> decomposition of the white plastic used to make the air ducts in the
> bottom of the drive. ?I restored one a few years ago in which that
> plastic crumbled at the slightest touch. ?That was a real shame. ?I
> repaired the drive using parts from a donor drive whose chassis was
> badly warped due to having been dropped.
>
> ?The other thing that usually needs replacing (Adrian you'll want to
> look into this) is the NiCd battery pack that's used to retract the head
> positioner.
>
> ? ? ? ? ? ?-Dave
>
> --
> Dave McGuire, AK4HZ
> New Kensington, PA