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
OPEN CONTROL BOX ACCESS
PANEL IN CABIN AT STA242
LEFT OPERATE PILOTS NO 1
TRIM SWITCH INC. THEN DEC.
CAN YOU HEAR TRIM MOTOR
RuN IN CO NT ROL BOX?
DID FUEL CONTROL POINTER
DOES FUEL CONTROL POINTER
MOVE AT ALL WHEN DEC.
MOVE WHEN DEC. IS
SELECTED?
SELECTED ON COPILOT S
THRUST GRIP?
NO
YES
OPEN LEFT ELECTRICAL COM-
PARTMENT DISCONNECT
PLUG 103P1 FROM NO 1 ENG
UN EMERG ENG TRIM
PANEL, SET ENG 1
A U T O / M A N U A L
S W
T O
M A N U A L . S E T E M E R G E N G
TRIM 1 SW TO DECR. DID AC-
TUATOR MOVE?
CHECK RIG OF NO 1 POWER
TURBINE CONTROL (N2)
SYSTEM. REFER TO TM 55-
15 2 0 - 2 4 0 - 23
CONTROL BOX CHECK FOR
CONTINUITY BETWEEN PLUG
103P1 PIN N AND RELAY
103K4 TERM A3 IS CON-
REPLACE NO 1 ENGINE CON
TROL BOX
TINUITY PRESENT?
NO
LOCATE OPEN IN WIRE W591-
6022 BETWEEN PLUG 103P1
AND RELAY 103K4 REPAIR OR
REPLACE WIRE AS REQUIRED
REMOVE PILOTS FLOOR
PANEL DISCONNECT PILOTS
THRUST GRIP PLUG 300P25
CHECK CONTINUITY BETWEEN
300J25 PIN CAND TB18 TERM
3 IS CONTINUITY PRESENT?
LOCATE OPEN IN WIRE W696-
45-22 BETWEEN 300J25 AND
TB18 REPAIR OR REPLACE
WIRE AS REQUIRED
LOCATE OPN IN WIRE W696-
44-22 BETWEEN 300J25 AND
TB18 REPAIR OR REPLACE
WIRE AS REQUIRED
CHECK CONTINUITY BETWEEN
300J25 PIN B AND TB18 TERM
13 IS CONTINUITY PRESENT?
REPLACE RELAY 103K4
REPLACE PILOT S THRUST
GRIP
DISCONNECT PLUG 103P1
FROM NO 1 ENG CONTROL
BOX OPEN NO 1 ENG ACCESS
DOORS DISCONNECT NO 1
ACTUATOR PLuG CHECK FOR
CONTINUITY BETWEEN PLUG
103P1 PIN N AND ACTUATOR
DISCONNECT ENGINE TO
AIRFRAME WIRE HARNESS AT
D I S C 0 N N E C T S H E L F C H E CK
FOR CONTINUITY BETWEEN
ACTUATOR PLUG PIN A AND
HARNESS PLUG PIN 43 IS
OPEN LEFT ELECTRICAL COM-
PARTMENT CHECK FOR CON-
TINUITY BETWEEN DISCON-
NECT SHELF RECEPTACLE
300J33 PIN 43 AND RELAY
103K4 TERM A2 IS CON-
TINUITY PRESENT?
CHECK NO. 1 EM ERG ENG
TRIM CB IS IT OPEN?
YES
CONTINUITY PRESENT?
PLUG PIN A IS CONTINUITY
PRESENT?
LOCATE OPEN IN WIRE W591-
31-22 BETWEEN RECEPTACLE
300J33 AND RELAY 103K4
REPAIR OR REPLACE WIRE AS
REQuIRED
REPLACE ENGINE TO
AIRFRAME WIRE HARNESS
TASK 4-6.6
END OF TASK
Change 1
4-151