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62
DCM-2 HART INTERFACE Maintenance - Troubleshooting
CHECK DRIVE
R / C NETWORK
PER TABLE 5,
PG. 79
CHECK SLM
FOR
WEAR
FROM
PAGE 65
GO TO
PAGE 63
GO TO
PAGE 63
DOES DRIVE
WORK PROPERLY
WITH THE
HANDSWITCH?
IS PROPER AC
POWER VOLTAGE
CONNECTED
ACROSS TERMI-
NAL C+ AND B-?
IS JUMPER FROM
TERMINAL A TO C
PRESENT AND
INTACT?
DOES IT WORK
PROPERLY CW?
DOES IT WORK
PROPERLY CCW?
GO BACK
TO
START
DOES MOTOR
APPEAR TO
ENERGIZE?
DOES MOTOR
APPEAR TO
ENERGIZE?
ARE THE R / C
COMPONENTS &
CONNECTIONS
OK?
DOES OUTPUT
SHAFT MOVE WITH
HANDSWITCH IN
“STOP”?
DOES DRIVE RUN
RANDOMLY AND/
OR ERRATICALLY?
DOES HAND-
WHEEL RUN
FREELY BUT DRIVE
WILL NOT
REPOSITION?
DOES HAND-
WHEEL SHUDDER
ABOUT ONE
POSITION?
IS BINDING OR
AN OBSTRUCTION
PRESENT?
CONSULT
FACTORY FOR
ASSISTANCE
REPLACE
AS
NECESSARY
REPAIR OR
REMOVE
OBSTRUCTION
REPLACE SLM
AS
NECESSARY
CONSULT
FACTORY
INSTALL
JUMPER
CONNECT
PROPER
POWER
START
CHECK
LINKAGE &
DRIVEN
ELEMENT
CHECK
SLM &
PINION
CALL
FACTORY
FOR
ASSIS-
TANCE
REPLACE
FAULTY
COMPO-
NENTS
NO
NO
NO
NONO
NO
NO
NO
NO
NO
YES
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
B1
C1
A1
ELECTRO / MECHANICAL -- CHART 1