A. Put the aircraft back to its initial configuration.
(1)
Remove the temporary placard from the cockpit
(2)
Remove the warning notice(s).
(3)
Remove the ground support and maintenance equipment, the special and standard tools and all other items.
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BRAKE COOLING - ADJUSTMENT/TEST
_______________________________ TASK 32-48-00-710-001 Functional Test of The Brake Cooling System
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. 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 32-00-00-860-001 Flight Configuration Precautions with Electrical Power 32-00-00-860-002 Ground Configuration after Flight Configuration with Electrical Power
3. Job Set-up
__________ Subtask 32-48-00-860-050
A. Aircraft Maintenance Configuration
(1)
On the panel 402VU, make sure that the BRK FAN CONTROL pushbutton switch is released.
(2)
Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
(3)
Take the applicable safety precautions before you open the LGCIU circuit breakers (Ref. TASK 32-00-00-860-001).
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Subtask 32-48-00-865-055
B. Make sure that this(these) circuit breaker(s) is(are) closed:
R -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU LIGHTING/XFMR/115V.5V/ESS BUS 29LP H03
R **ON A/C 051-099, 301-399,
R R R 121VU HYDRAULIC/BRK FAN/WHEELS/3 AND 4 121VU HYDRAULIC/BRK FAN/WHEELS/1 AND 2 121VU HYDRAULIC/BRK/FAN/CTL 2GS 1GS 3GS L35 L32 M32
R **ON A/C 051-099, 301-399, 401-499,
R R R R R R 121VU HYDRAULIC/LGCIU/SYS2 121VU HYDRAULIC/LGCIU/SYS1/GRND SPLY 122VU LIGHTING/TST/BOARD/SPLY 122VU LIGHTING/ANN LT SPLY/XFMR/BUS 2 122VU LIGHTING/ANN LT SPLY/XFMR/BUS 1 122VU LIGHTING/ANN LT SPLY/XFMR/STAT INV 2GA 52GA 30LP 27LP 26LP 28LP Q35 Q34 X06 X05 X04 X03
4. Procedure_________
Subtask 32-48-00-710-050
A. Test of the BRK FAN CONTROL Pushbutton Switch
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1.
On the panel 25VU, put the ANN LT selector switch in the TEST position.
2.
On the panel 25VU, put the ANN LT selector switch in the BRT position.
3.
On the panel 402VU, push the BRK FAN CONTROL pushbutton switch.
The ON and HOT legends of the BRK FANCONTROL pushbutton switch come on.
The ON and HOT legends of the BRK FANCONTROL pushbutton switch go off.
On this pushbutton switch, the ONlegend comes on.
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-------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
4.
On the panel 25VU, put the The ON legend of the BRK FAN CONTROL BRT/DIM selector switch in the pushbutton switch gets dimmer then gets DIM position and then in the BRT fully bright. position.
5.
On the panel 402VU, release the On this pushbutton switch, the ON BRK FAN CONTROL pushbutton legend goes off. switch.
Subtask 32-48-00-710-051
B. Test of the brake cooling system.
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1.
On the panel 121VU, open the circuit breaker 2GS. On the panel 402VU, push the BRK FAN CONTROL pushbutton switch.
2.
On the panel 402VU, release the BRK FAN CONTROL pushbutton switch.
3.
On the panel 121VU, open the circuit breaker 1GS and close the circuit breaker 2GS. Do the test specified in paragraphs 1 and 2, for wheels 3 and 4 only.
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