TM 55-1520-240-T
4-6.11 NO. 1 ENGINE FUEL CONTROL POINTER DOES NOT MOVE
OR MOVES BUT STOPS OUTSIDE OF 13° TO 21°
ON PROTRACTOR (DECREASE SELECTED) (Continued)
4-6.11
HOLD PILOTS NO. 1 AND NO.
2 TRIM SWITCH AT DEC OPEN
RIGHT ELECTRICAL COMPART-.
MENT CHECK FOR 28 VDC
BETWEEN RELAY 103K2 TERM
A2(+) AND GROUND 1S28
VDC PRESENT?
CHECK FOR 28 VDC BETWEEN
RELAY 103K2 TERM A1 ( + )
AND GROUND IS 28 VDC
PRESENT/
C HECK FOR GROUND ON
RELAY 103K2 TERM X 2 IS
GROUND PRESENT?
YES
HOLD PILOT’S NO. 1 AND NO.
2 TRIM SWAT DEC. CHECK
FOR 28 VDC BETWEEN RELAY
103K2 TERMX1 (+) AND
GROUND IS 28 VDC PRESENT?
LOCATE OPEN IN WIRE W592
52-22 BETWEEN RELAY 103K2
AND RELAY 103K1 REPAIR OR
REPLACE WIRE AS REQUIRED
REPLACE RELAY 103K2
RELEASE SW DISCONNECT
ELECTRICAL POWER
DISCONNECT PLUG 103P1
FROM CONTROL BOX. CHECK
FOR CONTINUITY BETWEEN
PLUG 103P1 PIN 8 AND RELAY
103K2 TERM A2
IS
CONTINUITY PRESENT?
LOCATE OPEN IN WIRE W591-
67-22 BETWEEN PLUG 103P1
AND RELAY 103K2 REPAIR OR
REPLACE WIRE AS REQUIRED
LOCATE OPEN IN WIRE W591-
GD132F20 BETWEEN RELAY
103K1 AN D GROUND MODULE
GD173 REPAIR OR REPLACE
OPEN LEFT ELECTRICAL COM-
PARTMENT CHECK FOR
GROUND ON RELAY 103K1
TERM A3 IS GROUND
PRESENT?
CHECK FOR GROUND ON PLUG
103P1 PINA IS GROUND
PRESENT?
LOCATE OPEN IN WIRE W591-
2522 BETWEEN PLUG 103P1
AND RELAY 1O3K1 REPAIR OR
REPLACE WIRE AS REQUIRED
CHECK FOR CONTINUITY
BETWEEN PLUG 103P1 PIN A
AN ORE LAY 103K1 TERM A2 IS
CONTINUITY PRESENT?
REPLACE NO 1 CONTROL BOX
REPLACE RELAY 103K1
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