Always scrape away from the access port and screw holes if scraping is
needed to remove remnants of the gasket from the transformer housing.
f. Ensure your hands and arms are free of dirt and perspiration.
g. The high-voltage rectifiers are vertically mounted on plug-in strips on the side
of the access port closest to the power plug. Each of these strips is fitted with a banana
plug on one end and a banana receptacle on the other. They can only be installed
The high-voltage rectifier strips must be replaced as a set. Failure in
one will damage all the others.
h. After the high-voltage rectifier strips have been replaced, re-install the access
cover and restore the transformer to operation by following this procedure in reverse.
Replace the cork access-cover gasket each time the cover is removed.
MXT-90/15 TABLE PARTS REPLACEMENT
a. Table Top Removal and Replacement. It is necessary to remove the table
to gain access to the locks and cables which may need replacement. Refer back to
paragraph 1-4d in Lesson 1 for instructions on removal and replacement of the table
b. Upper Vertical-Carriage Cable Replacement. The tower's vertical carriage
is attached to the counterweight holder by means of three cables. The two upper
cables are attached to the upper corners of the counterweight holder. Take the
following actions to replace these upper cables.
Tilt the table to the vertical position.
(2) Remove the rear cover from the tower. Notice how each upper cable is
routed up from the counterweight carriage-equalizer bar, over a pulley, down beneath
another pulley and up again, where it anchors in a block on the tower by a stop sleeve
swaged onto its end. Each cable is attached to the carriage equalizer by means of a
Remove the counterweights on the rear of the counterweight carriage.
(4) Disengage the looped end of the cable from the groove at the end of the
(5) Disengage the stop-sleeve end of the cable from its slotted block at the
top of the tower and remove the cable.