Instruction Manual

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Form 426 (08.13) ©SOR Inc.
Replacement of Switching Element/Mounting Bracket Assembly
 Disconnect electrical power to the defective switching element and unhook wires from
screw terminals, or wire leads (if installed) from junction box.
Failure to disconnect electrical power before performing these procedures
could result in severe personal injury or death.
 Remove mounting bracket assembly with defective switching element from housing by
removing overtravel locking screw and mounting bracket hinge screw. (See photo.)
 Use an awl or sharp tool to remove filler material from the overtravel adjustment slot
and clean interior of pressure switch housing. Inspect tapped holes from which screws
were removed.
 Install replacement mounting bracket assembly. Use thread locker adhesive on screw
threads to ensure weathertight integrity of housing and to prevent the screws from
loosening.
 Reconnect wires to screw terminals or wire leads to junction box or wire nuts on circuit
wires and energize the circuit.
 Perform overtravel adjustment (See page 4).