194 100-412-234 REV. 06
8.2.2 Recondition the Stack (Converter, Booster, and Horn)
Stack components function with greatest efficiency when the mating interface surfaces
are in proper condition. For 20kHz and 30kHz products, a Branson Mylar washer should be
installed between the horn and the booster, and booster and converter. Replace the
washer if torn or perforated. We recommend that stacks using Mylar washers be inspected
every three months.
Stacks used with silicone grease, as with certain 20 kHz installations and with all 40 kHz
products, should be periodically reconditioned to eliminate fretting corrosion. We
recommend that a stack using silicone grease be inspected every two weeks for corrosion.
The inspection interval can then be adjusted longer or shorter as required, when
experience is gained for specific stacks. Refer to the following procedure for correct stack
interface reconditioning.
To recondition the interfaces:
1. Remove the stack from the actuator
2. Disassemble the converter, booster, and horn stack. Observe the following rules:
In the event that you must disassemble a Stack, always use the correct spanner wrench
and a suitable soft-faced vise to remove a horn or booster, and reverse the procedures
described earlier in this Section.
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
NOTICE
The operating efficiency of the equipment will be greatly affected if
the mating interfaces of the converter, booster, and horn are not flat,
make poor contact with each other, or become corroded. A poor
contact condition wastes power and makes tuning difficult. It may
also affect the noise level and damage the converter.
DANGER
NEVER attempt to remove a horn or booster by holding the converter
housing or booster clamp ring in a vise.
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 5.8 Assemble the Acoustic Stack.
To Next Page
Loading...
