C. Referenced Information
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REFERENCE DESIGNATION
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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 75-31-20-000-002 Removal of the Bleed Valve Stop Mechanism 78-30-00-481-041 Make the Thrust Reverser Unserviceable for Maintenance 78-36-00-010-040 Opening of the Thrust Reverser Doors 75-31-10-991-300 Fig. 401
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3. Job Set-up
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Subtask 75-31-10-941-052
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.
(b) Put a warning notice to tell persons not to energize the FADEC
1(2). R
R Subtask 75-31-10-861-050
R B. Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
R Subtask 75-31-10-865-050
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 75-31-10-010-051
R D. Get Access
(1) Open the fan cowl doors (Ref. TASK 71-13-00-010-040): FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
(2) Put the access platform in position.
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Subtask 75-31-10-040-052
R E. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041).
Subtask 75-31-10-010-054
R F. Open the thrust reverser doors (Ref. TASK 78-36-00-010-040): FOR 1000EM1 451AL, 452AR FOR 1000EM2 461AL, 462AR
4. Procedure
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(Ref. Fig. 401/TASK 75-31-10-991-300)
Subtask 75-31-10-010-056
A. Remove the bleed valve fuel gear motor (40) and the VBV stop mechanism
(140) as a complete assembly (Ref. TASK 75-31-20-000-002).
Subtask 75-31-10-020-051
B. Removal of the Bleed Valve Fuel Gear Motor
(1) Remove the fuel gear motor (40) from the stop mechanism (140) as follows:
(a) Remove the 4 bolts (100) and washers (110) that attach the fuel gear motor (40) to the baseplate of stop mechanism (140). Move the items (40) and (140) apart to complete the removal of the fuel gear motor (40).
(b) Remove O-ring (130) from the fuel gear motor mounting diameter. Discard O-ring (130).
Subtask 75-31-10-620-050
C. Preserving of the Bleed Valve Fuel Gear Motor
(1) Put fuel system corrosion preventative oil (Material No. CP5066) into one port of the fuel gear motor.
(2) Rotate the motor shaft until the fluid flows from the opposite port.
(3) Install blanking caps on the ports of fuel gear motor.
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Bleed Valve Fuel Gear Motor Assembly
Figure 401/TASK 75-31-10-991-300
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TASK 75-31-10-400-002
Installation of the Bleed Valve Fuel Gear Motor Assembly
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