4-6.13 NO. 2 ENGINE FUEL CONTROL POINTER DOES NOT MOVE
OR MOVES BUT STOPS OUTSIDE OF 13° TO 21°
ON PROTRACTOR (DECREASE SELECTED) (Continued)
TM 55-1520-240-T
4-6.13
OPEN RIGHT ELECTRICAL
COMPARTMENT OPERATE
PILOTS NO 1 AND NO 2 TRIM
SWITCH INC. THEN DEC CAN
YOU HEAR TRIM MOTOR RUN
IN CONTROL BOX?
D0ES FUEL CONTROL POINTER
MOVE WHEN DEC. IS
SELECTED ON COPILOTS
THRUST GRIP?
DID FUEL CONTROL POINTER
MOVE AT ALL WHEN DEC.
SELECTED?
NO
YES
REPLACE NO 2 ENGINE CON-
TROL BOX
O N E M E R G E N G T R IM
PANEL. SET ENG 2
A U T O / M A N U A L S W TO
M A N U A L S E T E M E R G E N G
TRIM 2 SW TO DECR DID AC-
TUATOR MOVE?
DISCONNECT PLUG 103P2
FROM NO 2 ENG CONTROL
BOX CHECK FOR CONTINUITY
BETWEEN PLuG 103P2 PIN N
AND RELAY 103K3 TERM A3 IS
CONTINUITY PRESENT?
CHECK RIG OF NO 2 POWER
TURBINE CONTROL (N2)
SYSTEM REFER TO TM 55-
15 2 0 - 2 4 0 - 23
YES
NO
REMOVE PILOTS FLOOR
PANEL DISCONNECT PILOTS
NO
THRUST GRIP PLUG 30OP25
CHECK CONTINUITY BETWEEN
300J25 PIN D AND TB18 TERM
14 IS CONTINUITY PRESENT?
LOCATE OPEN IN WI RE W592 -
39-22 BETWEEN PLUG 103P2
AND RELAY 103K3 REPAIR OR
REPLACE WIRE AS REQUIRED
LOCATE OPEN IN WIRE W696-
46-22 BETWEEN 300J25 AND
TB18 REPAIR OR REPLACE
WIRE AS REQUIRED
LOCATE OPEN IN WIRE W696-
47-22 BETWEEN 300J25 AND
TB18 REPAIR OR REPLACE
WIRE
AS
REQUIRED
CHECK CONTINUITY BETWEEN
300J25
PIN
FAND
TB18
TERM
6 IS CON T INUITY P R E S E N T ?
REPLACE RELAY 103K3
DISCONNECT PLUG 103P2
FROM NO 2 ENG CONTROL
BOX OPEN NO 2 ENG ACCESS
DOORS DISCONNECT NO 2
ACTUATOR PLUG CHECK FOR
CONTINUITY BETWEEN PLUG
103P2 PIN N AND ACTUATOR
PLUG PIN A IS CONTINUITY
PRESENT?
DISCONNECT ENGINE TO
AIRFRAME WIRE HARNESS AT
DISCONNECT SHELF CHECK
FOR CONTINUITY BETWEEN
ACTUATOR PLUG PIN A AND
HARNESS PLUG PIN 43 IS
CONTINUITY PRESENT?
CHECK FOR CONTINUITY
BETWEEN DISCONNECT SHELF
RECEPTACLE 300J32 PIN 43
AND RELAY 103 K3 TERM A2 IS
CONTINUITY PRESENT?
REPLACE PILOTS THRUST
GRIP
CHECK NO. 2 EMERG ENG
TRIM CB. IS IT OPEN?
REFER TO TROUBLE SYMPTOM
TASK 4-69
LOCATE OPEN IN WIRE W592-
36-22 BETWEEN RECEPTACLE
300J32 AND RELAY 103K3
REPAIR OR REPLACE WIRE AS
REQuIRED
REPLACE NO 2 ENGINE
POWER TURBINE ACTUATOR
REPLACE ENGINE TO
AIRFRAME WIRE HARNESS,
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Change 1
4-161