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Subtask 73-11-48-420-050
B. Installation of the Fuel/Return Bypass Valve Hose
(1) Remove the protective covers from the fuel/return bypass valve hose (5), the fuel/return bypass valve and the fluid disconnect panel.
R (2) Attach the hose (5) and the gasket (35) to the fluid disconnect panel with the bolts (25) and the washers (30).
(3) TORQUE the bolts (25) to between 24 and 36 lbf.in (0.27 and 0.40 m.daN).
(4) Safety the bolts (25) with lockwire 0.032 in. (0.8 mm) dia. (Material No. CP8001) or lockwire 0.032 in. (0.8 mm) dia. (Material No. CP8002).
(5) Attach the hose (5) to the bracket with the clamp (15), the bolt (10) and the nut (20).
(6) TORQUE the nut (20) to between 24 and 36 lbf.in (0.27 and 0.40 m.daN).
(7) Connect the hose (5) to the fuel/return bypass valve. TORQUE the coupling nut to between 1000 and 1050 lbf.in (11.30 and 11.86 m.daN).
Subtask 73-11-48-869-050
C. Make sure that the work area is clean and clear of tool(s) and other items.
Subtask 73-11-48-942-050
D. Close Access
(1) Remove the access platform(s).
(2) Remove the warning notice(s).
Subtask 73-11-48-720-050
E. Do a leak check of the fuel return valve (Ref. TASK 73-11-50-360-002).
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Subtask 73-11-48-410-050
A. Close the fan cowl doors: (Ref. TASK 71-13-00-410-040) FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
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FUEL TUBES - REMOVAL/INSTALLATION
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TASK 73-11-49-000-041
Removal of the Fuel Tubes
1. Reason for the Job
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Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
R No specific circuit breaker(s) safety clip(s) No specific container No specific protective covers No specific warning notice No specific access platform 1 m (3 ft. 3 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the
R External Power 71-13-00-010-040 Opening of the Fan Cowl Doors 73-11-49-991-300 Fig. 401
3. Job Set-up
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Subtask 73-11-49-941-050
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.
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(b) Put a warning notice to tell persons not to energize the FADEC
1(2). R
R Subtask 73-11-49-861-051
R B. Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
R Subtask 73-11-49-865-056
R C. Open, safety and tag this(these) circuit breaker(s):
R -------------------------------------------------------------------------------R PANEL DESIGNATION IDENT. LOCATION R -------------------------------------------------------------------------------R 49VU FUEL/LP VALVE/MOT1/ENG2 2QG A09 R 49VU FUEL/LP VALVE/MOT1/ENG1 1QG A08
Subtask 73-11-49-865-050
R D. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------FOR 1000EM1
49VU ENGINE/1/HP FUEL SOV 1KC1 A01 FOR 1000EM2 49VU ENGINE/2/HP FUEL SOV 1KC2 A02
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