(e) If you cannot get the correct gap, remove the N1 speed sensor and replace it by a serviceable sensor.
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(f) TORQUE the bolts as follows:
CAUTION : WHEN YOU TORQUE THE BOLTS, USE TIGHTENING INCREMENTS TO
_______ PREVENT DISTORTION OF THE SENSING PROBE. GET NEAR THE FINAL TORQUE BY SMALL QUANTITIES: ONE BOLT THEN THE OTHER, AND REPEAT. TO MAKE SURE THAT YOU APPLY THE SAME TORQUE ON THE 2 BOLTS AT THE SAME TIME, THE USE OF 2 RATCHET WRENCHES IS STRONGLY RECOMMENDED.
1 Lubricate the threads of the two bolts (60) with graphite
_ grease (Material No. CP2101). Attach the N1 speed sensor (40) to the fan frame, with the two bolts (60).
(g) TORQUE the bolts (60) to between 110 and 120 lbf.in (1.24 and
1.35 m.daN).
(8) Install the connector:
CAUTION : CAREFULLY ALIGN THE CONNECTOR KEY WITH THE RECEPTACLE
_______ KEYWAY BEFORE YOU CONNECT THEM TO PREVENT DAMAGE TO THE CONNECTORS.
(a) Remove the blanking caps from the electrical connectors.
(b) Make sure that the connectors and the receptacles are clear of unwanted materials.
(c) Connect the cable connectors to the N1 speed sensor receptacles. Use soft-nose connector pliers only if necessary.
(d) Make sure the connectors are fully engaged and do not move.
5. Close-up
________
Subtask 77-11-10-410-051
A. Close Access
(1) Make sure that the work area is clean and clear of tool(s) and other items.
(2) Close the fan cowl doors (Ref. TASK 71-13-00-410-040):
FOR 1000EM1
437AL, 438AR
FOR 1000EM2
447AL, 448AR
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(3) Remove the warning notice(s).
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N2 SPEED SENSOR (4001EV) - REMOVAL/INSTALLATION
_______________________________________________ TASK 77-11-20-000-002 Removal of the N2 Speed Sensor (4001EV).
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking cap No specific blanking plug No specific soft-nose connector pliers No specific warning notice
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
71-13-00-010-040 Opening of the Fan Cowl Doors 77-11-20-991-300 Fig. 401
3. Job Set-up
__________ Subtask 77-11-20-941-051
A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a warning notice to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
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(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a warning notice to tell persons not to energize the FADEC 1(2).
Subtask 77-11-20-010-051
B. Open the fan cowl doors: (Ref. TASK 71-13-00-010-040)
FOR 1000EM1
437AL, 438AR
FOR 1000EM2
447AL, 448AR
4. Procedure
_________
(Ref. Fig. 401/TASK 77-11-20-991-300)
Subtask 77-11-20-020-051
A. Removal of the N2 Speed Sensor:
(1) Disconnect the electrical cables from the N2 speed sensor. Use soft-nose connector pliers only if necessary.
(2) Put blanking cap on the cable connectors and on the sensor receptacles.
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