(2)
Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(3)
Close the APU access doors 315AL, 316AR (Ref. TASK 52-41-00-410-001).
(4)
Remove the access platform(s). Subtask 49-91-42-860-062
B.
Aircraft Maintenance Configuration
(1)
Pressurize the reservoirs of the hydraulic systems.
(Ref. TASK 29-14-00-614-002).
(2)
De-energize the ground service network
(Ref. TASK 24-42-00-862-001).
(3)
Remove the warning notice(s).
R EFF : 001-049, 101-105, 107-107, 151-199, 49-91-42Page 214 201-210, Config-2 Aug 01/05
CES
DRAIN PLUG - MAGNETIC ((APS 3200)) - MAINTENANCE PRACTICES
__________________________________________________________ TASK 49-91-42-000-002 Removal of the Magnetic Drain Plug (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 circuit breaker(s) safety clip(s) No specific access platform 3.5 m (11 ft. 6 in.)
B. 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 49-91-42-991-003 Fig. 201
3. Job Set-up
__________ Subtask 49-91-42-860-050
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 49-91-42-865-057
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 49-91-42-010-052
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
_________
(Ref. Fig. 201/TASK 49-91-42-991-003) Subtask 49-91-42-020-053
A. Removal of the Magnetic Drain Plug
(1)
Remove the magnetic element (3) from the plug (1).
(2)
Remove the O-ring (2) from the magnetic element (3). Discard the O-ring.
(3)
Drain the oil from the gearbox (Ref. TASK 49-90-00-600-005).
(4)
Removal of the Lockwire: WARNING : CUT, REMOVE AND DISCARD THE LOCKWIRE AS YOU DO THE TASK.
_______ LOOSE LOCKWIRE CAN CUT OR BLIND YOU.
-remove the lockwire and remove the plug portion (1) from the gearbox.
(5) Remove the preformed packing (4) from the plug (1). Discard the preformed packing.
Magnetic Drain Plug
Figure 201/TASK 49-91-42-991-003
CES TASK 49-91-42-400-002
Installation of the Magnetic Drain Plug (APS 3200)
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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