16 Jan
2014
16 Jan
'14
9:14 p.m.
Hello,
On Thu, Jan 16, 2014 at 4:08 AM, David Gesswein <djg at pdp8online.com> wrote:
I pulled out my DEC RD53 for testing the archiver and
surprise the heads
were stuck. I opened it and freed them but wasn't able to find the bumper
that is the cause of the problem. I put pictures here.
http://www.pdp8online.com/rd53/rd53.shtml
Does anyone on the list know where the bumper is and can say in relation
to my pictures? The first drive hasn't restuck so far but I have another to do.
Note: I have only done this once.
The bumper is actually inside the head assembly (or whatever you call
it, lower left in your picture), it is kind of hard to remove it
without dissassembling the head assembly.
So I took the easy way out: while holding the head away from its
resting position I inserted a paper strip into the correct "slot" in
the head assembly and that worked. Look at the movement of the part
when the head is going to the resting position to figure out which
"slot" is the correct one. I used a paper strip that just fit into the
slot width and depth wise.
YMMV.
--
Regards,
Torfinn Ingolfsen