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C. Close Access
(1) Close the fan cowls: (Ref. TASK 71-13-00-410-040) FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
(2) Remove the warning notice(s).
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LATCH - COWL - ADJUSTMENT/TEST
______________________________ TASK 78-36-41-820-042 Adjustment of the Thrust Reverser Half Door Latches
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific warning notice No specific Torque Wrench : range 30 to 40 lbf.in
(0.33 to 0.45 m.daN) No specific Torque Wrench : range 36.00 to 220.00 lbf.in
(0.40 to 2.60 m.daN)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
71-13-00-010-040 Opening of the Fan Cowl Doors 71-13-00-410-040 Closing of the Fan Cowl Doors 78-30-00-081-041 Make the Thrust Reverser Serviceable after
Maintenance 78-30-00-481-041 Make the Thrust Reverser Unserviceable for Maintenance 78-36-41-991-302 Fig. 501
3. Job Set-up
__________ Subtask 78-36-41-941-053
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.
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(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(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 78-36-41-010-056
B. Open the fan cowl doors (Ref. TASK 71-13-00-010-040):
FOR 1000EM1
437AL, 438AR
FOR 1000EM2
447AL, 448AR
Subtask 78-36-41-040-053
C. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041)
4. Procedure
_________
(Ref. Fig. 501/TASK 78-36-41-991-302)
Subtask 78-36-41-820-051
A. Adjustment of the Thrust Reverser Half Door Latches
(1) Open the four half door latches.
(2) At the two forward latches, remove the screws and the locking brackets.
(3) Loosen the tension nuts.
(4) At the center latch, remove the screw and the locking bracket.
(5) Loosen the tension nut.
(6) At the aft latch, remove the screw and the locking bracket.
(7) Loosen the tension nut.
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(8) Make sure the latch hooks are fully engaged in each stirrup. Do not close the latch handles.
(9) TORQUE each tension nut, in sequence from front to rear to 90 lbf.in
(1.01 m.daN).
(10) After the last tension nut has been torqued, do step (9) again.
(11) Do a check. CAUTION : ALL LOCATING PINS MUST BE IN FULL CONTACT WITH BUSHINGS OR
_______
DAMAGE COULD OCCUR TO REVERSER.
(a) Do a check of the centering pins and bushings located on both sides of the door latches.
1 Make sure the surface of the wrenching flat of each centering
_ pin fully touches the surface of each bushing. There should be no space between the surface of the centering pin and the bushing.
2 If the surface of the wrenching flat on the centering pin is
_ not fully against the bushing at each location, do a torque of the latch tension nuts. (refer to step (9) above).
3 If the clearance is not satisfactory, then examine the
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