3. Job Set-up
__________
Subtask 71-73-49-860-054
A. Aircraft Maintenance Configuration
(1) On the center pedestal, on the ENG panel 115VU, make sure that a warning notice is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a warning notice is in position to tell persons not to energize the FADEC 1(2).
F 『 EEFF : ALL E Page 44071-73-49
E E May 01/05 E E ECES E Subtask 71-73-49-010-072
F 『
E C F M E
E E
E 56-5B E
E E
B. Make sure that the fan cowl doors are open: (Ref. TASK 71-13-00-010-040) FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
4. Procedure
_________
(Ref. Fig. 405/TASK 71-73-49-991-304) Subtask 71-73-49-420-056
A. Installation of the Fuel Overboard Drain Tube
(1) Remove the protective covers from the tubes.
(2) Connect the drain tube (5) to the tube. Do not torque the coupling nut at this time.
(3) Attach the drain tube (5) to the bracket on the transfer gearbox with the clamp (10), the bolt (15) and the nut (20).
(4) Attach the drain tube (5) to the bracket at the bottom of the transfer gearbox with the bolt (25), the spacer (30) and the nut (35).
(5) Make sure that the drain tube (5) is aligned correctly on the engine.
(6) TORQUE the nuts (20) and (35) to between 20 and 25 lbf.in (0.22 and
0.28 m.daN).
(7) Torque the drain tube. CAUTION : USE A SECOND WRENCH TO HOLD THE FITTINGS WHEN YOU
_______ LOOSEN/TIGHTEN THE TUBE COUPLING NUTS. THIS PREVENTS DAMAGE TO THE TUBES.
(a) TORQUE the drain tube (5) coupling nut to between 200 and 250 lbf.in (2.26 and 2.82 m.daN).
F 『 EEFF : ALL E Page 44171-73-49
E E Feb 01/00 ERE
ECES E 5. Close-up
F 『
E C F M E
E E
E 56-5B E
E E
________ Subtask 71-73-49-410-057
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
(3) Remove the warning notice(s).
F 『 EEFF : ALL E Page 44271-73-49
E E Feb 01/00 ERE
ECES E
F 『
E C F M E
E E
E 56-5B E E E TASK 71-73-49-000-026
Removal of the Heat Exchanger Drain Tube
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific container 1 l (0.25 USgal) No specific protective covers No specific warning notice
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
71-13-00-010-040 Opening of the Fan Cowl Doors 71-73-49-991-305 Fig. 406
3. Job Set-up
__________ Subtask 71-73-49-941-058
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.
(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.
F 『 EEFF : ALL E Page 44371-73-49
E E Feb 01/00 ERE
ECES E
