(3)
Make sure that hydraulic systems are depressurized
(Ref. TASK 29-00-00-864-001).
(4)
Make sure that the access platform is in position below the APU compartment.
(5)
Make sure that the APU access doors are open (Ref. TASK 52-41-00-010-001).
Subtask 49-32-12-865-051
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU APU/APU/CTL 2KD L42 121VU APU/ECB/SPLY 1KD L41
4. Procedure
_________ (Ref. Fig. 401/TASK 49-32-12-991-001) Subtask 49-32-12-420-050
A. Installation of the Flow Divider and Drain Valve Assembly (8023KM)
CAUTION : YOU MUST USE TWO WRENCHES AND HOLD THE COMPONENT WHEN YOU
_______ REMOVE/INSTALL THE PIPE COUPLINGS AND/OR UNIONS. THIS PREVENTS DAMAGE TO THE COMPONENT.
CAUTION : -YOU MUST NOT INCREASE THE TIGHTENING TORQUE MORE THAN THE
_______
MAXIMUM VALUE.
-APPLY ALL TIGHTENING TORQUES WITH A TORQUE WRENCH OR A
CALIBRATED SCREWDRIVER.
(1)
Remove the blanking caps from the APU flow divider and drain valve
assembly.
(2)
Clean the component interface and/or the adjacent area.
(3)
Do an inspection of the component interface and/or the adjacent area.
(4)
Hold the flow divider and drain valve assembly (8023KM) (8) in
position and install the bracket (7), the washer (6) and the bolt
(5).
NOTE : Make sure that the flow divider and drain valve assembly
____ (8023KM) (8) is installed with the main-fuel inlet connection to the rear.
(5)
TORQUE the bolt (5) to 0.56 m.daN (49.55 lbf.in).
(6)
Remove the blanking caps from the fuel pipes.
(7)
Connect the primary fuel pipe (4) to the flow divider and drain valve assembly (8023KM) (8).
(8)
Tighten the primary fuel pipe (4).
(9)
Connect the secondary fuel pipe (3) to the flow divider and drain
valve assembly (8023KM) (8).
(10)
Tighten the secondary fuel pipe (3).
(11)
Safety the primary fuel pipe-connection (4) to the secondary fuel pipe-connection (3) with lockwire-corrosion resistant steel 0.8 mm
(0.032 in) dia.
(12)
Connect the fuel drain pipe (2) to the flow divider and drain valve assembly (8023KM) (8).
(13)
Tighten the fuel drain pipe (2).
(14)
Safety the fuel drain pipe (2) with lockwire-corrosion resistant steel 0.8 mm (0.032 in) dia.
(15)
Connect the main fuel inlet-pipe (1) to the flow divider and drain valve assembly (8023KM) (8).
(16)
Tighten the main fuel inlet-pipe (1).
(17)
Safety the main fuel inlet-pipe (1) with lockwire-corrosion resistant steel 0.8 mm (0.032 in) dia.
Subtask 49-32-12-865-052
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1KD, 2KD.
Subtask 49-32-12-710-050
C. Do the operational test of the APU (Ref. TASK 49-00-00-710-004).
(1) Operate the APU for min. five minutes and examine the joints of the flow divider for leaks.
NOTE : Leaks are not permitted.
____
________
5. Close-up
Subtask 49-32-12-410-050
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Close the APU access doors 315AL, 316AR (Ref. TASK 52-41-00-410-001).
(3)
Remove the access platform(s).
(4)
Remove the warning notice(s).
FLOW DIVIDER AND DRAIN VALVE ASSY - REMOVAL/INSTALLATION
________________________________________________________ TASK 49-32-12-000-002 Removal of the Flow Divider (8024KM) (APS 3200) WARNING : DO NOT TOUCH THE APU UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS
_______ WHEN YOU DO THE MAINTENANCE TASK(S).
WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
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