It has taken me some
time to get back to this project. I waited on delivery of a Bristol wrench set and a half cycle wheel. Then other summer activities intervened. I also had input from Clark (professorc30). Thanks Clark!
He suggested that I do a cleaning on the typewriter before attempting to
troubleshoot further as that might solve the problems.
I finally got around
to cleaning the Selectric III. After now
completing this task I am amazed at how quiet the typewriter is. Can hardly even tell it is running, so all is
well in regards to the previous noise.
The other issues however were not resolved.
When I obtained this
Selectric III for free, not all the keys functioned. A few stuck down and would only slowly
return. Also, the Shift keys would stick
down. Once you struck the Shift key
several times it would then seem to loosen up and work fine. I assumed these issues would be resolved with
the cleaning.
After initial cleaning the very quiet running
Selectric still did the following:
- Several letters do
not print when the keys are pushed (Some
seem to stay down & others immediately return but do not print)
- Only the dash key
will strike multiple times when held down.
No other key will do this.
- The Shift keys still
stick.
- Both the left and
right margins will not stop the carrier no matter what position the margin
stops are in. This was not a problem before
cleaning. (I feel that I may have reengaged the print shaft a tooth or so off as
compared to where it originally was located.
Was not sure if this may be a cause of the margin issue?)
Posting to the GolfBallTypwriterShop
Yahoo group, I received additional feedback.
Suggestions that the margin issue was not returning horizontal. To more thoroughly re-clean the Selectric and
let a good penetrating oil set to loosen up the sticky keys. Also that the dash/underscore key is the only
key on Selectrics designed to strike multiple times while depressing the
key. Did not know that….. All good advice.
I did discover that I
had forgotten a step in my cleaning process.
I went back and re-cleaned everything.
This re-cleaning cleared up the margin problem. However the sticking / unable to print keys
were not changed.
Something told me to
take another look into the cardboard box I had carried this Selectric III home
in. Low and behold I found this in the
bottom of the box.
Now I am showing my
lack of knowledge on Selectrics. This
was a key lever pawl spring comb from the left side of the machine that should
be installed on the Selectric, not sitting at the bottom of a cardboard
box. The below image shows the spring
comb installed on the right side and where the missing spring comb should be
placed on the left.
I may be out of my
depth now. I have spent a lot of time unsuccessfully
trying to re-insert the spring comb. It
looks to be somewhat bent and my tries to have each tooth ride on the lever
pawl under tension has been unsuccessful.
We shall see what the groups suggests about this problem.
More to
come............
Definitions:
IBM Selectric III: Flagship model produced by IBM
between c.1980 and 1986.
Bristol Wrench: Wrench similar to an Allen wrench but with a slightly
different pattern on the face.