Chapter 7: Maintenance
Reconditioning the Stack Interface
7 - 6 100-413-016 Rev. C
7.4.2 Stud Replacement
The Stud is intended to be a use-only-once part, as it has knurls on its end which
‘bite’ into the relatively softer horn material. The studs are also specially designed
to withstand ultrasonic stresses. If you must replace the stud, it is very important
to clean the threads and the horn of the previous shavings.
1. Using a clean cloth or towel, clean the threaded hole.
2. Examine the threaded hole for stripped threads. Do not use a
damaged ultrasonic horn or converter.
NOTICE
Threaded studs cannot be reused in titanium horns.
3. Clean the threaded hole before inserting the new stud.
4. Apply one drop of Loctite
1
threadlocker to the stud and insert it
into the horn.
5. Tighten the stud. Use the following torque specifications:
After the new stud has been inserted, you can reassemble the Horn to the Con-
verter. Follow the same procedure as found in Section 4.5: Connecting and
Removing Tips, Horns, and Converters, beginning on page 4-5.
1. Loctite is a registered trademark of Henkel Corporation, U.S.A.
Stud Size Torque Specification Stud EDP number
3/8-24 x 11/4 in 290 in lbs/33 Nm 100-098-121
3/8-24 x 11/2 in 290 in lbs/33 Nm 100-098-120
1/2-20 x 11/4 in 450 in lbs/51 Nm 100-098-370
1/2-20 x 11/2 in 450 in lbs/51 Nm 100-098-123
1/2-20 to 3/8-24 x 1 in
Adaptor stud
250 in lbs/28 Nm 100-098-249
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