B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-28-55-991-001 Fig. 401
3. Job Set-up
__________ Subtask 24-28-55-941-050
A. Safety Precautions
(1) In the cockpit, on the overhead panel 35VU, release these pushbutton switches:
-BAT 1, BAT 2,
-GEN 1, GEN 2,
-EXT A.
(2) In the cockpit, put a warning notice to tell persons not to operate the pushbutton switches on these overhead panels: - 35VU (ELEC), - 21VU (EMER ELEC PWR).
(3) Make sure that the external power connector is not connected to the aircraft receptacle EXT PWR A.
(4) Put a warning notice on the access door 121AL to tell persons not to connect the external power connector.
(5) Put an access platform at the avionics compartment door 822.
Subtask 24-28-55-010-050
B. Get Access
(1) Put the access platform in position at the access door 822.
(2) Open the access door 822.
(3) In the avionics compartment, open the access door of the panel 105VU.
Subtask 24-28-55-869-050
C. Disconnect the Batteries
(1) In the avionics compartment, on the batteries 1 and 2:
(a) Loosen the knurled nut by one quarter of a turn and disconnect the connector from the batteries 1 and 2.
(b) Put blanking caps on the diconnected electrical connectors.
Subtask 24-28-55-865-050
D. Open, safety and tag this(these) circuit breaker(s):
R R R R R -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------105VU ELEC/HOT BUS/702PP SPLY 5PB2 D02 105VU ELEC/HOT BUS/701PP SPLY 5PB1 D01 105VU ELEC/STAT INV/CNTOR/CTL 14XB G02 106VU CSM/G /EV/MAN/SPLY 6XE B04 122VU ELEC/REFLNG/ON/BAT 1PR U28
4. Procedure_________
R (Ref. Fig. 401/TASK 24-28-55-991-001)
Subtask 24-28-55-020-050
A. Removal of the Contactor
R R CAUTION : REMOVE THE CONTACTOR ONLY AND NOT THE BASE OR THE MODULE WHERE_______ THE WIRES ARE CONNECTED.
(1) Disconnect the electrical connector (3).
(2) Put blanking caps on the connector (3) and the electrical receptacle (2).
(3) Loosen the 6 captive screws (4).
NOTE : Do not remove the captive screws (4) and the spring washers____ from the contactor (1).
(4) Disengage the contactor (1) from the base (7) and remove the contactor (1).
Static Inverter Contactor
Figure 401/TASK 24-28-55-991-001
1EFF : ALL 1 24-28-55 Page 404
1 1 Feb 01/98
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TASK 24-28-55-400-001
Installation of the Static Inverter Contactor (2XB)
CAUTION : MAKE SURE THAT NO AC OR DC POWER IS CONNECTED TO THE AIRCRAFT
_______
ELECTRICAL CIRCUITS.
THERE IS A RISK OF DAMAGE TO EQUIPMENT DURING ITS REMOVAL/
INSTALLATION IF THE AC OR DC POWER STAYS CONNECTED.
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific warning notice
No specific access platform 1.8 m (5 ft. 11 in.)
R No specific Torque Wrench : range 5.00 to 35.00 lbf.in
R (0.05 to 0.40 m.daN)
B. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
24-28-00-710-001 Operational Test of the Static Inverter (3XB) when the Aircraft Electrical Circuits are Energized from the External Power
24-28-55-991-001 Fig. 401 3. Job Set-up
__________
Subtask 24-28-55-860-050
A. Aircraft Maintenance Configuration
(1)
In the cockpit, on the overhead panel 35VU, make sure these pushbutton switches are released:
