UFC 3-570-06
JANUARY 31 2003
With power OFF, check for loose connections from P2 to P3, N2 and N5
through N7, including any press-to-test switch or button, and continuity of
all wires between those points. This will require disconnection of AC
power from the rectifier cabinet and possibly removal of the rectifier from
the cabinet. Note that loose connections are characterized by heat,
discoloration of the connection, and melted insulation. Repair or replace
loose connections and replace damaged or broken wires. If problems are
not found, proceed with paragraph 5-2.1.3b.
With power OFF, remove voltmeter from rectifier. This will require
disconnection of AC power from the rectifier cabinet and possibly removal
of the rectifier from the cabinet. Disconnect one end of the resistors on
reverse side of meter. Measure the resistance of the resistors with a
handheld multimeter on the ohms scale and compare to the value of the
resistor (if no resistors are present, replace meter). Replace resistor or
meter as required.
5-3
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