12
REPLACEMENT OF TUBE ~ MODEL P
Should it become necessary to replace the tube in the Model P KILN-SITTERļ, the
following instructions should be followed
1. Refer to PARTS IDENTIFICATION, Model P, on Page 2 for an exploded illustration
of Model P and the names of its parts.
2. Remove the box from the baffle plate by unscrewing the 1/4-inch machine screws on
the right and left sides (4 screws.)
3. Remove the baffle plate from the kiln by unscrewing the four 3/8-inch metal screws.
The baffle plate with tube assembly attached is now free to be withdrawn from the
opening in the kiln wall.
4. Disassemble the old tube from the baffle plate by removing the large nut and
washer.
5. Remove the nut and washer from the new
tube assembly. Insert the nipple and tube
through the hole in the baffle plate, as shown
in Figure 15. Replace the washer and nut, but
before tightening be sure that the spline
protruding from the baffle plate engages in
the notch at the top of the tube metal jacket. When the nut is tightened, the end of
the nipple threads should be flush with the outer surface of the nut. If necessary, the
nipple can be threaded in or out of the jacket to achieve this adjustment. When these
things are done, tighten the nut firmly.
6. As shown in Figure 16, the rear end of the sensing rod
should be even with or slightly behind the ends of the cone
supports. The setscrew in the swivel assembly may be
loosened if adjustment is necessary. Be sure the setscrew
is firmly tightened.
7. Place the spring wire retainer over the tube and onto the
metal jacket, then the washer. After replacing the baffle
CAUTION: BE SURE POWER IS OFF BEFORE PROCEEDING!
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