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MMD > Archives > March 1999 > 1999.03.12 > 06Prev  Next

Kimball Electramatic Spool Drive
By John A. Tuttle

Hi All,  Regarding Eric Bergstrom's posting in MMDigest 990311 about
the Kimball roll drive system, some of his information is incorrect.

I have the Service Manuals for Kimball Series A, Model E and one other
one which I believe is the Model D (I lost the cover page).  Of the
three, only the Series A shows two motors.  The 'E' and the other one
both show only one motor.  It should also be noted that Kimball changed
the motor housing (and perhaps everything inside) at least three times
that I know of for certain.

In my humble opinion, the only way to accurately identify which motor
(or motors) resides in any particular Kimball is to read the numbers
stamped on the housing.  To the best of my knowledge and experience,
they are not interchangeable from model to model.

Regarding Billy Carroll Cornelius' <> problem (he's
the guy that Ian was asking the question for), I couldn't help noticing
that Ian said "the roll transport mechanism has ceased to function,
presumably due to the demise of the drive motor or associated gears."
He didn't say 'motors'.

The point is that the single motor units use a different motor, so the
one Ed has might not be the right one.  I wrote to Billy and asked him
to send a picture along with the model of his unit.  Hopefully, he'll
respond, or maybe Ian can find out.

One final note of interest.  In the Model E manual, Kimball changed
their Warranty from One Year to "a period of one year, except for the
motors which are warranted for 90 days".  Since the only other motor
in the Model E is the vacuum pump motor, it seems fairly obvious that
Kimball must have had been burned more than once by motors that went
bad to limit their warranty so radically.

(A question) I wonder how many people would have purchased the
instrument had they known the motors were only warranted for 90 days?
And here's the kicker!  The warranty goes on to say, "The warranty
period begins with the sale of the piano, and is in effect when the
registration card is completed and returned to the Kimball Piano &
Organ Company."  So let's say the card didn't get sent back within
90 days of the sale... Hmmm, makes you wonder.


John A. Tuttle
Brick, NJ

(Message sent Sat 13 Mar 1999, 00:07:13 GMT, from time zone GMT-0500.)

Key Words in Subject:  Drive, Electramatic, Kimball, Spool

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