78 100-412-182 REV. 06
3. Wipe the interfaces with a clean cloth or paper towel
4. Examine all interfaces. If any interface is corroded or shows a dark, hard deposit, it
should be reconditioned
5. If the interfaces appear to be in good condition, go to step 13
6. If necessary, remove the coupling studs
7. Tape a clean sheet of #400 grit (or finer) emery cloth to a clean, smooth flat surface. A
piece of glass is suitable
8. Hold the part to be conditioned at its lower end and carefully stroke it in one direction
across the emery cloth. Do not press down. The weight of the component provides
enough pressure
9. Perform a second stroke. Rotate the part 1/3 around and stroke it twice across the
cloth
10.Turn the part remaining 1/3 and repeat
11.Re-examine the interface and repeat steps 8, 9 and 10 until the surface appears clean
and smooth. This should not take more than 2 or 3 complete rotations of the part
being reconditioned
12.Clean the threaded hole, using a clean cloth or paper towel
13.Replace the stud with a new one if removed. Torque the 3/8-24 studs to 290 in·lbs
(32.77 N·m). Torque 1/2-20 studs to 450 in·lbs (50.84 N·m). Torque M8x1/4 studs to
70 in·lb (7.9 N·m)
NOTICE
Use a soft-jawed vise (brass or aluminum) to remove square or
rectangular horns, or horns otherwise unremovable, by reversing the
procedure detailed in
5.7 Assembly the Acoustic Stack.
NOTICE
Use no more than two strokes in one position. Use the same number
of strokes at each location.
NOTICE
The use of a Branson torque wrench or the equivalent is
recommended. P/N 101-063-618 for 40 kHz systems.
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