-two standard drilling machines with the DRIVING ADAPTOR (98D32403004000).
NOTE : You must do this test if there is a risk of wiring cross connection
____ between two tachometers (replacement of the MLG or of the electrical harness of the MLG). If only one tachometer is replaced or disconnected, THIS TEST IS NOT MANDATORY as the BSCU will do the automatic check of the tachometer.The BSCU will do this check during aircraft roll between 10 m/s and 40 m/s (32.81 ft/s and 131.23 ft/s) to make sure that the tachometer operates correctly.
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific standard drilling machines (rotation speed higher
than 900 rpm)
355M03190001 1 MLG WHEEL TACHYMETER DRIVING TOOL
98D32403004000 2 DRIVING ADAPTOR
R 1EFF : 051-099, 301-399, 401-499, 1 32-42-00Page 520 1 1 Aug 01/05 1 1 1CES 1
B. 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 27-96-00-740-001 BITE Test of the EFCS (Ground Scanning) 29-10-00-864-001 Depressurize the Green Hydraulic System 29-23-00-863-001 Pressurize the Green Hydraulic System from the Yellow
Hydraulic System through the PTU with the Electric
Pump 34-10-00-860-004 IR Alignment Procedure 34-10-00-860-005 ADIRS Stop Procedure
3. Job Set-up
__________
Subtask 32-42-00-860-061
A. Aircraft Maintenance Configuration
(1)
Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
(2)
Pressurize the Green hydraulic system (Ref. TASK 29-23-00-863-001).
(3)
On the panel 402VU, make sure that the ANTI SKID selector switch is in the ON position.
(4)
Do the IR alignment procedure (Ref. TASK 34-10-00-860-004).
(5)
Install the MLG WHEEL TACHYMETER DRIVING TOOL (355M03190001) on the wheel on which the tachometer has been replaced and on a wheel of the opposite landing gear. Or as an alternative, if the MLG WHEEL TACHYMETER DRIVING TOOL (355M03190001) is not available:
(a)
Install one DRIVING ADAPTOR (98D32403004000) on each of two standard drilling machines (rotation speed higher than 900 rpm).
(b)
Connect the DRIVING ADAPTOR (98D32403004000) to the tachometer drive shaft on the wheel on which the tachometer has been replaced and on a wheel of the opposite landing gear.
R 1EFF : 051-099, 301-399, 401-499, 1 32-42-00Page 521 1 1 Aug 01/05 1 1 1CES 1 Subtask 32-42-00-865-061
B. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU HYDRAULIC/BRAKING AND STEERING/SYS2/SPLY 4GG M36 121VU HYDRAULIC/BRAKING AND STEERING/SYS2/CTL 3GG M35 121VU HYDRAULIC/BRAKING AND STEERING/SYS1/CTL 1GG M34 121VU HYDRAULIC/BRAKING AND STEERING/SYS1/IND AND/SPLY 2GG M33 121VU HYDRAULIC/SOL VALVES/G/Y/PTU 1801GL N34
4. Procedure
_________
Subtask 32-42-00-720-051
A. Test of the Tachometers
NOTE : In the test that follows, if you use the DRIVING ADAPTOR with the
____ drilling machine, read DRIVING ADAPTOR as an alternative to DRIVING TOOL.
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the captain or the first On all the brakes: officer side:
-push the brake pedals. - the pistons are extended.
2. On each DRIVING TOOL: On each wheel which is not connected to the DRIVING TOOL:
-set a wheel speed of between - the brake pistons retract.
900 and 1100 rpm for the
connected wheels.
