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70

Dukane Manual Part No. 403–558–03

Dynamic Process Controller DPC

™

II – User’s Manual

Stack Assembly

Attaching A Replaceable

Tip To A Horn

1. Inspect all horn and tip surfaces for stress

cracks, chips, or gouges. Any of these ir-

regularities will affect operation and could

lead to further equipment damage. Contact

the Dukane Ultrasonics Tooling Department

concerning damaged horn components.

2. Apply an extremely thin layer of a high tem-

perature, high pressure silicon grease to the

back surface that mates with the horn. The

grease will allow both surfaces to intimately

mate and become acoustically transparent

which improves the energy transfer. Do not

apply any grease to the threads. We recom-

mend Dow–Corning #4 (or #111 as an alter-

nate). A small packet of Dow–Corning #4 is

supplied with the system. If you cannot use a

silicon–based grease in your facility, a petro-

leum–based grease may be used. However, it

is likely to leave carbonaceous deposits on the

surface, and require more frequent joint main-

tenance. Failure to follow these instructions,

may result in the mating surfaces bonding and

difculty removing the tip from the horn.

3. Thread the tip into the horn and tighten to the

torque specications below using an open end

wrench of the correct size to t the wrench

ats of the tip. This is illustrated in Figure

6–12. If necessary, use a spanner wrench (on

horns with spanner wrench holes) or an open

end wrench (on horns with wrench ats) to

keep the horn from turning in your hand. A

canvas strap wrench is permissible if it does

not gouge or scratch the horn.

• 70 inch-lbs for an 8mm threaded tip

• 100 inch-lbs for a 3/8” x 24 threaded tip

• 160 inch-lbs for a 1/2” x 20 threaded tip

Tighten

NOTE

Dukane Part No for the 20kHz spanner

wrenches is 721–68

Dukane Part No for the 40kHz spanner

wrenches is 721–44

NOTE

Do not apply any grease to the threads of the

replaceable tip. This may cause the tip to loosen

from the horn resulting in inconsistent opera-

Figure 6–12 Replaceable Tip Installation

1 2 ... 75 76 77 78 79 80 81 82 83 84 85 ... 145 146

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