(2)
Open the APU access doors 315AL, 316AR (Ref. TASK 52-41-00-010-001).
4. Procedure
_________
(Ref. Fig. 401/TASK 49-94-14-991-002) Subtask 49-94-14-020-051
A. Removal of the Oil Pressure Switch
(Ref. Fig. 402/TASK 49-94-14-991-004)
(1)
Disconnect the electrical connector P14 (1) from the oil pressure switch (2).
(2)
Put blanking caps on the disconnected electrical connectors.
(3)
Disconnect the tube (5) from the oil pressure switch (2).
(4)
Put blanking plugs on the disconnected line ends.
(5)
Remove the bolts (3),(6) and the washers (7) and (8), release the bonding strap (4) and remove the oil pressure switch (2).
Low Oil Pressure Switch
Figure 401/TASK 49-94-14-991-002
CES
Oil Pressure Switch (8091KM)
Figure 402/TASK 49-94-14-991-004
CES TASK 49-94-14-400-002
Installation of the Oil Pressure Switch (8091KM) (APS 3200)
WARNING : DO NOT TOUCH THE APU UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS
_______ WHEN YOU DO THE MAINTENANCE TASK(S).
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. 03-002 GB DEF-STAN 91-101 LUBRICATING OIL TURBINE ENGINE SYNT BASE (Ref. 20-31-00)
C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
20-28-00-912-002 Electrical Bonding of Components With Conductive Bolts and Screws in the Tanks 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power 29-00-00-864-001 Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
29-14-00-614-002 Pressurization of the Hydraulic Reservoirs through
the Ground Connector 49-00-00-710-008 Operational Test of the APU (APS 3200) 52-41-00-010-001 Open the APU Doors for Access 52-41-00-410-001 Close the APU Doors after Access 49-94-14-991-002 Fig. 401 49-94-14-991-004 Fig. 402
3. Job Set-up
__________
Subtask 49-94-14-860-050
A. Aircraft Maintenance Configuration
(1)
Make sure that the aircraft electrical circuits are energized (Ref. TASK 24-41-00-861-002).
(2)
On the panel 25VU, make sure that the APU MASTER SW pushbutton switch is off.
(3)
Make sure that there is 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).
(5)
Make sure that the access platform is in position below the APU compartment.
(6)
Make sure that the APU access doors are open (Ref. TASK 52-41-00-010-001).
(7)
Make sure that the LIGHT control switch 11LJ is set to the on position.
Subtask 49-94-14-865-056
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 49-94-14-991-002) Subtask 49-94-14-420-051
A. Installation of the Oil Pressure Switch
(Ref. Fig. 402/TASK 49-94-14-991-004)
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