(b)
Manually move the wheels in steering mode on the RH stop. Record the voltage U1.
(c)
Manually move the wheels in steering mode on the LH stop. Record the voltage U1'.
(d)
From the voltage U1 and U1', calculate the average voltage U1".
(e)
Manually move the wheels in steering mode to get the voltage U1". NOTE : The angular travel of the nose wheels includes the NLG cam
____ play and the NLG torque link play.
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(6) Check of the voltage NOTE : Do not move the wheels manually in steering mode when you do a
____ check of the voltage. This can cause an incorrect voltage indication.
(a)
On the SENSOR-VOLTAGE TEST (F26792000) or SENSOR - VOLTAGE TEST set the selector switch to U1.
(b)
Record the voltage U1
(c)
On the SENSOR-VOLTAGE TEST (F26792000) or SENSOR - VOLTAGE TEST set the selector switch to U2.
(d)
Record the voltage U2
(e)
From the voltage U1 and U2, calculate the voltage U: U = U1 - U2
(7)
This voltage U must not be more than 20mV/AC
(8)
If the voltage U is more than 20 mV/AC adjust the nose wheel steering gearbox (Ref. TASK 32-51-00-820-002).
(9)
De-energize the aircraft electrical circuits
(Ref. TASK 24-41-00-862-002).
(10) Remove the SENSOR-VOLTAGE TEST (F26792000) or SENSOR - VOLTAGE TEST (F26792000-1) and connect the connector 3GC-A(4GC-A) to the sensor 3GC(4GC).
**ON A/C ALL
Subtask 32-51-19-720-050
B. Functional Test
(1) Do a functional test of the nose wheel steering with the handwheel (Ref. TASK 32-51-00-720-003).
5. Close-up
________ Subtask 32-51-19-581-050
A. Lower the aircraft to the ground (Ref. TASK 07-11-00-586-001).
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Subtask 32-51-19-942-051
B. Removal of Equipment
(1)
Remove the warning notice(s).
(2)
Make sure that the work area is clean and clear of tool(s) and other items.
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___________________________________________________
TASK 32-51-21-000-001
Removal of the Safety Valve (2900GM)
WARNING : MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE
_______ YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT.
WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
_______ START A TASK ON OR NEAR:
-
THE FLIGHT CONTROLS
-
THE FLIGHT CONTROL SURFACES
-
THE LANDING GEAR AND THE RELATED DOORS
-COMPONENTS THAT MOVE. WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
1. Reason for the Job__________________ Self Explanatory
2. Job Set-up Information______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific blanking plugs
No specific circuit breaker(s) safety clip(s)
No specific 1 ACCESS PLATFORM 2M (6 FT)
No specific 1 CONTAINER 5 L(1 1/2 USGAL)
No specific 2 WARNING NOTICE
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B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
20-23-21-911-001 Removal/Installation of the Bobbins from their
Housings and Installation of O-rings, Square Seals,
and Back-up Rings on the Bobbins 29-00-00-910-002 Safety Procedures of the Hydraulic System 29-10-00-864-002 Depressurize the Yellow Hydraulic System 29-14-00-614-001 Depressurization of the Hydraulic Reservoirs 32-12-00-010-001 Open the Main Gear Doors for Access 32-51-21-991-001 Fig. 401
3. Job Set-up
__________
Subtask 32-51-21-010-050
A. Get Access
(1)
Open the right MLG door (Ref. TASK 32-12-00-010-001)
(2)
Put the ACCESS PLATFORM 2M (6 FT) in position.
Subtask 32-51-21-860-050
B. Aircraft Maintenance Configuration
WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
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