_________
 (Ref. Fig. 401/TASK 49-94-14-991-003) Subtask 49-94-14-020-052
 A. Removal of the Low Oil Pressure (LOP) Switch
 (1)
 Disconnect the electrical connection (1).

 (2)
 Put blanking caps on the disconnected electrical connectors.

 (3)
 Put a container in position below the gearbox.

 (4)
 Loosen the nut (4) that secures the LOP switch (2) in the gearbox.

 (5)
 Remove the LOP switch (2) from the gearbox.

 (6)
 Remove and discard the O-ring (3).

 (7)
 Put a blanking plug in the gearbox port.

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 CES

 Low Oil Pressure Switch
 Figure 401/TASK 49-94-14-991-003

 CES

 TASK 49-94-14-400-003
 Installation of the Low Oil Pressure Switch (8091KM) (131-9(A))

 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific  container 2 l (0.5283 USgal)
 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. Expendable Parts
 -------------------------------------------------------------------------------FIG.ITEM |DESIGNATION |IPC-CSN -------------------------------------------------------------------------------
packing  49-94-09 01 -030

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 CES

 D. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External Power 24-42-00-862-001 De-energize the Ground Service Network 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 49-00-00-860-008 APU Start by External Power (131-9(A)) 49-00-00-860-009 APU Shutdown by External Power (131-9(A)) 49-90-00-600-007 Check and Replenish Oil Level (131-9(A)) 52-41-00-010-001 Open the APU Doors for Access 52-41-00-410-001 Close the APU Doors after Access 49-94-14-991-003 Fig. 401
 3. Job Set-up
__________
 Subtask 49-94-14-860-057
 A. Aircraft Maintenance Configuration
 (1)
 Energize the ground service network
 (Ref. TASK 24-42-00-861-001).

 (2)
 On the panel 25VU make sure that the APU MASTER SW p/bsw 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 SW 11LJ is set to the ON position.

 (8)
 Make sure that the container is in position below the LOP switch.

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 CES  Subtask 49-94-14-865-059

 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
 Subtask 49-94-14-010-054
 C. Make sure that the APU access doors 315AL and 316AR are open.
 4. Procedure
_________ (Ref. Fig. 401/TASK 49-94-14-991-003) Subtask 49-94-14-420-052
 A. Installation of the Low Oil Pressure (LOP) Switch
 (1)
 Apply a layer of lubricant OILS (Material No. 03-002) to the new packing (3).
　
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