Pub. 42003-251A
GAI-TRONICS® CORPORATION
A HUBBELL COMPANY
Round, Blac k, Single-Pole Push-Button
Assembly Replacement Kit
for 200 and 300 Series Telephones
MODEL 12520-013
Confidentiality Notice
This manual is provided solely as an operational, installation, and maintenance guide and contains
sensitive business and technical information that is confidential and proprietary to GAI-Tronics. GAITronics 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 Model 12520-013 Kit is intended for use on GAI-Tronics 200 and 300 Series standard telephones
(-001 and -002). This kit can be used to replace the black push-button assembly used on the Model
294AL, 298, 392, 2394AL, 396, and 398 Telephones.
Kit Components
Qty. Description Required Tools
1 Push-button Switch Assembly
1 Mounting Nut
1 Mounting Ring
1 Tie Wrap
#1 Phillips Screwdriver
1/8-inch Straight Slot Screwdriver
Model 233-001 Security Screwdriver
Wire Cutters
Model 294AL and 394AL Series T elephones
Removing the Old Push-Button Assembly
1. Use a Model 233-001 Security Screwdriver to loosen the four front cover screws. Save the screws
for re-assembly.
2. Lift the front cover assembly away from the back box.
3. Disconnect the telephone line cord, and strobe wire, if applicable.
GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA
610-777-1374 800-492-1212 Fax: 610-796-5954
ISIT WWW.GAI-TRONICS.COM FOR PRODUCT LITERATURE AND MANUALS
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Pub. 42003-251A
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ODEL 12520-013 ROUND, BLACK, SINGLE-POLE PUSH-BUTTON ASSEMBLY REPLACEMENT KIT Page 2 of 4
4. Place the front cover assembly face down on a flat surface.
5. Use the wire cutters to snip the tie wrap that is securing the push-button assembly cable to the other
wires.
6. Unplug the push-button assembly cable connector from the PCBA. Be sure to note the location of
the connection for re-assembly.
7. Remove #4-40 screws securing PCBA to standoffs using #1 Phillips screwdriver. Pull the PCBA
away.
8. Using the appropriate screwdriver, loosen the anti-rotation screw on the mounting nut.
See Figure 1.
9. Remove and discard the mounting nut, the mounting ring, and the push-button assembly.
Figure 1. Push-Button Switch Assembly, Exploded View
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