TM 55-1520-240-T
4-6.9 NO. 2 EMERGENCY ENGINE TRIM CIRCUIT BREAKER
WILL NOT STAY CLOSED (Continued)
W A S E M E R G E N G T R IM
PANEL SWITCH SET TO INC.
NO
OR DEC.?
R E M O V E EMERG ENG TRIM
PANEL FROM CONSOLE
CHECK FOR GROUND FAULT
ON INC. -DEC. SWITCH 103S4
TERM 6 IS GROUND PRESENT?
I
YES
1
OPEN RIGHT ELECTRICAL
COMPARTMENT REMOVE
WIRE FROM RELAY 103K3
TERM B1 IS GROUND
PRESENT?
LOCATE GROUND FAULT
BETWEEN RELAY 103K3 AND
SWITCH 103S4 ON WIRE
W 5 5 7 - 8 3 7 . 2 2 , W 6 3 9 - 3 2 2 - 22
OR W592-33-22, REPAIR OR
REPLACE WIRE AS REQuIRED
NO
REPLACE RELAY 103K3
CHECK FOR GROUND FAULT
ON ENGINE TRIM PANEL
E N G I N E
N O . 2
I N C . - D E C .
SWITCH 103S4 TERM 1 IS
GROUND PRESENT?
DISCONNECT WIRE F R O M
RELAY
103K3
TERMX1
IS
GROUND PRESENT?
LOCATE GROUND FAULT
BETWEEN RELAY 103K3 AND
SWITCH 103S4 ON WIRE
W 5 5 7 - 8 3 8 - 2 2 , W 5 5 7 - 8 3 9 - 2 2,
W639-324-22
OR
W592-35-22
REPAIR OR REPLACE WIRE AS
REQUIRED
NO
4-6.9
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Change 1
4-141
