__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s) No specific access platform 3.5 m (11 ft. 6 in.)
B. Expendable Parts
-------------------------------------------------------------------------------FIG.ITEM |DESIGNATION |IPC-CSN -------------------------------------------------------------------------------
1 packing 49-91-04 50 -110 2 packing 49-91-04 50 -120
C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 29-00-00-864-001 Put the Related Hydraulic System in the Depressurized
Configuration before Maintenance Action 49-90-00-600-005 Oil Change (Drain Method) (APS 3200) 52-41-00-010-001 Open the APU Doors for Access 49-91-43-991-002 Fig. 401
3. Job Set-up
__________
Subtask 49-91-43-860-051
A. Aircraft Maintenance Configuration
(1)
Energize the aircraft electrical circuits
(Ref. TASK 24-41-00-861-002).
(2)
On the panel 25VU, make sure that the APU MASTER SW pushbutton switch is off.
(3)
Put a warning notice in the cockpit to tell persons not to start the APU.
(4)
Make sure that hydraulic systems are depressurized
(Ref. TASK 29-00-00-864-001).
Subtask 49-91-43-865-055
B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU APU/APU/CTL 2KD L42 121VU APU/ECB/SPLY 1KD L41
Subtask 49-91-43-010-052
C. Get Access
(1)
Put the access platform in position below the APU access doors 315AL and 316AR.
(2)
Open the APU access doors 315AL and 316AR (Ref. TASK 52-41-00-010-001) .
(3)
Set the LIGHT control switch 11LJ to the on position.
4. Procedure
_________ Subtask 49-91-43-020-051
A. Removal of the Pressure Relief Valve
(Ref. Fig. 401/TASK 49-91-43-991-002)
(1)
Drain the oil from the APU oil reservoir (Ref. TASK 49-90-00-600-005).
(2)
Removal of the Lockwire: WARNING : CUT, REMOVE AND DISCARD THE LOCKWIRE AS YOU DO THE TASK.
_______
LOOSE LOCKWIRE CAN CUT OR BLIND YOU.
-Remove and discard the lockwire and remove the pressure relief valve (3) from the APU.
(3) Remove and discard the packings packing (1) and packing (2).
Pressure Relief Valve Figure 401/TASK 49-91-43-991-002
R EFF : 106-106, 108-149, 211-299, 301-399, 49-91-43 Page 404 Aug 01/05
CES
TASK 49-91-43-400-002 Installation of the Pressure Relief Valve (APS 3200) WARNING : DO NOT LET OIL STAY ON YOUR SKIN FOR A LONG TIME AS IT CAN CAUSE
_______ INJURY.
WARNING : BE CAREFUL WHEN YOU DRAIN THE ENGINE OIL AND/OR LOOSEN THE FILLER
_______ CAP. HOT OIL CAN SPILL PAST THE FILLER CAP WHEN THE OIL LEVEL IS ABOVE THE 'ADD' RANGE (MARKED ON THE SIGHT GLASS).
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific Torque Wrench : range 36.00 to 220.00 lbf.in
(0.40 to 2.60 m.daN)
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 04-012 USA VV-P-236 PURE MINERALVASELINE OR PETRO- LATUM (Ref. 20-31-00)
Material No. 19-010 USA AMS 5687 LOCKWIRE STAINLESS STEEL ANNEALED 0.8MM DIA (Ref. 20-31-00)
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