D. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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 29-14-00-614-002 Pressurization of the Hydraulic Reservoirs through
the Ground Connector 49-00-00-860-005 APU Start by External Power (APS 3200) 49-00-00-860-006 APU Shutdown by External Power (APS 3200) 49-90-00-600-004 Check Oil Level and Replenish (APS 3200) 49-91-42-200-003 Inspection of the Magnetic Drain Plug (APS 3200) 52-41-00-010-001 Open the APU Doors for Access 52-41-00-410-001 Close the APU Doors after Access 49-91-41-991-003 Fig. 202
3. Job Set-up
__________
Subtask 49-91-41-860-056
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 49-91-41-865-061
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 49-91-41-010-054
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
_________
(Ref. Fig. 202/TASK 49-91-41-991-003)
WARNING : USE THE CORRECT PERSONAL PROTECTION.
_______ OIL CAN HAVE ADDITIVE CALLED TRICRESYL PHOSPHATE IN IT. THIS CHEMICAL IS AN ASPHYXIANT, IT IS POISONOUS AND CAN BE ABSORBED THROUGH THE SKIN. USE CARE WHEN ENGINE OIL IS DRAINED. HOT OIL CAN POSSIBLY CAUSE BAD BURNS.
CAUTION : DO NOT CLEAN THE OIL FILTER ELEMENTS. YOU MUST DISCARD THEM AND
_______ INSTALL NEW FILTER ELEMENTS. IF YOU CLEAN THE OIL FILTER ELEMENTS, YOU CAN CAUSE DAMAGE TO THEM. THIS WILL CAUSE DAMAGE TO THE APU.
Subtask 49-91-41-020-055
A. Removal of the Oil Filter-Element
(1)
Put the container below the the oil-filter cap (2).
(2)
Release and hold the the oil-filter latch assembly (1) in the open position.
(3)
Remove the oil-filter cap (2). NOTE : Let the remaining oil drain from the oil-filter ports in the
____
gearbox into the container.
(4)
Remove the oil-filter element (4).
(5)
Inspect the oil-filter element (4) under a source of white light for unwanted material.
AC Generator Scavenge Oil-Filter
Figure 202/TASK 49-91-41-991-003
CES
NOTE : If you find unwanted material, continue as given in the
____ inspection of the magnetic drain plug (Ref. TASK 49-91-42-200-003).
(6) Discard the oil-filter element (4).
(7)
Remove and discard the packing (3). Subtask 49-91-41-420-056
B.
Installation of the Oil Filter-Element
(1)
If the delta P indicator has come out, reset it.
(2)
Make sure that the oil-filter cap (2) is in a correct condition.
(3)
Make sure that the latch assembly (1) is in a correct condition.
(4)
Apply COMMON GREASE (Material No. 04-012) to the new packing (3).
(5)
Install the new packing (3) on the oil-filter cap (2).
(6)
Install the filter-element (4).
(7)
Apply OILS (Material No. 03-002) to the thread of the oil-filter cap (2).
(8)
Install the oil-filter cap (2).
(9)
TORQUE the oil-filter cap (2) to between 180 and 240 lbf.in (2.03 and
2.71 m.daN).
(10)
Do a check of the oil level at the oil-sight glass and add oil if necessaray (Ref. TASK 49-90-00-600-004).
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