TM 5-6350-275-24&P
3-112. REPLACE BALANCED MAGNETIC SWITCH, SENTROL 2720 SERIES. (Figure 3-60).
This task consists of:
a. Remove
b. Install
INITIAL SETUP:
Tools:
General Safety Instructions:
Screwdriver, Flat tip (Item 7, App B)
Remove all jewelry while working on
equipment.
Materials/Parts:
Balanced Magnetic Switch
WARNING
Shut off power source before attempting to disconnect, service, or connect wires or cables.
Failure to do so may result in serious injury or death.
a. Removal
(1) Remove three flathead screws (4) holding sensor switch (3) to protected entrance way.
(2) Tag and disconnect sensor wiring (5) from terminal box.
(3) Remove two flathead screws (2) holding sensor magnet (1) to door assembly.
(4) Remove sensor switch (3) and sensor magnet (1) from protected assembly.
b. Installation
(1) Align sensor switch and sensor magnet with previously drilled holes and secure with two flathead screws (2), for
sensor magnet (1) and three flathead screws (4) for sensor switch assembly (3).
(2) Connect wires (5) from sensor switch to terminal box.
(3) Check for correct alignment between sensor switch (3) and sensor magnet (1) (See SAIG, Appendix E, Section
1).
Figure 3-60. Removal and Replacement of Balanced Magnetic Switch Assembly
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