GAI-Tronics 13411-001 User manual

Pub. 42004-110
GAI-Tronics Corporation P.O. Box 1060, Reading, PA 19607-1060 USA
610-777-1374 n800-492-1212 nFax: 610-775-6540
GAI-TRONICS CORPORATION
Model 13411-001 (8 Ohm) and 13411-002 (16 Ohm)
Replacement Voice Coil/Diaphragm Assemblies
Confidentiality Notice
This manual is provided solely as an operational, installation, and maintenance guide and contains
sensitive business and technical information which is confidential and proprietary to GAI-Tronics. GAI-
Tronics retains all intellectual property and other rights in or to the information contained herein, and
such information may only be used in connection with the operation of your GAI-Tronics product or
system. This manual may not be disclosed in any form, in whole or in part, directly or indirectly, to any
third party.
General Information
The following table presents the driver assemblies covered in this manual.
Model Description
13314-001 8-ohm, Division II hazardous
13314-002 16-ohm, Division II hazardous
13314-003 70-volt, not UL listed (16-ohm VC)
13315-001 8-ohm, Division I hazardous
13315-002 16-ohm, Division I hazardous
13315-003 70-volt, Division I hazardous (16-ohm VC)
The equipment described herein is listed by Underwriter’s Laboratories (with the exception of the
13314-003) for use in the hazardous areas described. This listing is contingent upon several points:
•Equipment is installed in accordance with the National Electrical Code and/or any special
instructions.
•No unauthorized mechanical or electrical modifications are made.
•The ac input power is disconnected from all associated equipment before removing equipment
covers.
•Replacement parts are equivalent to the original.
•All cover bolts and/or fittings removed for maintenance are replaced before reconnecting the ac
power.
Voice Coil Replacement for 13314 Series Drivers
1. Remove the 3 retaining screws from the back cover, and open the driver housing.
2. Firmly grasp wires leading to the connector tabs on the voice coil frame, and pull the leads straight
out.

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3. Remove the 2 retaining screws from the
bracket holding the magnet assembly in
place, and carefully withdraw the magnet
assembly.
4. Replace the voice coil assembly, placing
the new silicon gasket provided into the
driver cavity first. Discard the old gasket.
5. Check to see if any foreign material has
entered the magnet assembly voice coil gap
(see the Cleaning the Magnetic Gap
section).
6. Replace the magnet assembly, being careful
not to crush the voice coil, and replace the
bracket and screws.
UU CAUTION UU Do not over-tighten
these screws. The recommended torque
is 6-8 inch-pounds. Tighten sequentially.
7. For models 13314-001 and 13314-002,
connect the black wire onto the wide tab
connection of the voice coil and the white
wire to the narrow tab.
8. For model 13314-003, the 70-volt driver
with a transformer, connect the gray wire to
the wide tab and the blue wire to the
narrow tab.
9. Replace the back cover using the new gasket provided, and reinstall the screws.
Voice Coil Replacement for 13315 Series Drivers
1. Remove the 6 flange bolts from the driver, and remove the rear housing.
UCAUTION UHandle the castings with extreme care. The mating flange surfaces must not
be scratched, scored, or otherwise damaged.
2. For model 13315-003, the 16-ohm with a 70-volt transformer, remove the wire nuts connecting the
transformer secondary to the voice coil leads.
3. Remove the 3 screws retaining the transformer mounting plate, and remove the plate assembly.
4. Perform Steps 3 through 6 in the Voice Coil Replacement for 13314 Series Drivers section.
5. Connect the black wire to the wide tab of the voice coil and the white wire to the narrow tab.
6. For Model 13315-003, bring the black and white wires through their associated clearance holes in the
transformer mounting plate, and reconnect the plate to the front housing.
7. Reconnect the gray wire from the transformer to the black voice coil lead and the blue transformer
common wire to the white voice coil lead using suitable splice connectors.
8. Replace the rear housing cover and bolts. Note: Bolts must be torqued to 40 foot-pounds (54.2 Nm).

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Cleaning the Magnetic Gap
If any material (fillings, dust, and so on) is apparent in the magnetic gap, it may be cleaned easily using a
small piece of masking tape doubled over with its adhesive side out. Insert the tape end into the gap, and
slide it all the way around. Repeat this process until the masking tape comes out clean.