Hi All, The main purpose of this posting is to show how to remove
the metal shroud from the top of the Wurlitzer 1202 vacuum pump.
A Player-Care customer has been trying to get his mother's Wurlitzer
1202 working again. After repairing the roll drive system, he found
burned out components in the power supply for the vacuum pump motor.
Replacement parts were ordered from Morelock's Organ.
After removing the motor from the heavy cardboard sleeve (image
1202-motor-sleeve.jpg), he couldn't figure out how to get the metal
shroud (with the vacuum port on top) off to examine the brushes.
A number of opinions were offered, but the 'trick' ended up being to
push firmly on the three black dots (marked with red arrows) in the
picture (image pump-3.jpg).
Once that was tried, the shroud moved a little and after some forceful
wiggling and pulling, the shroud finally came off, exposing the fan
and the rest of the motor (image motor-apart.jpg). Evidently, judging
by the scuff marks, the screw-bolts, that secure the black rubber part
to the metal part, get tightened just enough to hold the shroud in
place, and pushing on the black dots bent the rubber piece just enough
to begin to release the pressure.
It should also be noted that this pump only needs to produce 11 inches
of water vacuum. So, it doesn't have to be tightly sealed like most
vacuum pump boxes.
John A Tuttle
[ Wurlitzer 1202 pump motor in cardboard sleeve
[ Wurlitzer 1202 pump motor -- top view
[ Wurlitzer 1202 pump motor -- top, side, bottom view
[ Wurlitzer 1202 pump motor -- shroud removed