R 1EFF : 001-049, 051-061, 101-105, 201-203, 1 29-22-00Page 549 1 1 Config-1 May 01/05 1 1 1CES 1R (4) Make sure that the fluid level in the Blue hydraulic reservoir is not R below the low level warning. R

 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
R 1. On the test set:

R
R - push the lamp test switch.

R 2. On the test set:

 -set the aircraft selector switch to the A320 position.
R 3. On the test set:

R
R - set and hold the PUMP/SPIN
R speed indicator switch for
R approximately 20 seconds in the
R SPIN position.

R
R

R
R
R

R If the green indicator light is
R on:
R - continue with the step 8. of
R this test.

R If the green indicator light is
R not on:
R - continue the test as follows:

R 4. On the test set:

R - release the PUMP/SPIN speed
R indicator switch.

On the test set:
-all the lamps come on.
On the ECAM lower DU:
-
the pressure of the Blue hydraulic system decreases to approximately 2500 psi (172.3689 bar).

At the RAT:

-
the RAT turns.

On the test set:

-
the green indicator light can come on.

At the RAT:
-the RAT stops.
R 1EFF : 001-049, 051-061, 101-105, 201-203, 1 29-22-00Page 550 1 1 Config-1 May 01/05 1 1 1CES 1

 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
R R R R  5. Pressurize the Blue hydraulic system with the Blue electric pump (Ref. TASK 29-10-00-863-003). 
R R R R R R  NOTE : The operation of the Blue____ electric pump at the same time as the ground power cart is necessary to supply the RAT with a sufficient flow. 
R R R R  6. On the test set: - set and hold the PUMP/SPIN speed indicator switch in the SPIN position. 
R  7. On the ground power cart: 
R R R R R R R  CAUTION : STOP THE TEST_______ IMMEDIATELY IF THE RAT DOES NOT TURN AT ITS CORRECT SPEED IN 20 SECONDS. IF NOT THERE IS A RISK OF DAMAGE TO THE RAT. 
R R R R  - increase the pressure to 2800 psi (193.0531 bar) (pressure on the HYD page on the ECAM lower DU) 
R R R 
R R R 
R R R R 

At the RAT:
-
the RAT turns at its normal speed (5210 to 5590 rpm) in less than 20 seconds.

On the test set:

-
the green indicator light comes on and stays on.

NOTE : The RAT speed stays almost
____ constant, between 5210 and 5590 rpm.
On the ground power cart:
-the pressure must be 206 bar (2987.7766 psi) + 3 bar (43.5113 psi)
-0 bar (0.0000 psi),
R 1EFF : 001-049, 051-061, 101-105, 201-203, 1 29-22-00Page 551 1 1 Config-1 May 01/05 1 1 1CES 1

 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
R 
R 
R 
R  8. On the test set: 
R  - release the PUMP/SPIN switch. 
R 
R 
R  9. If the results of the test are 
R  not correct, do the subsequent 
R  steps in their sequence until you 
R  find the fault. Then do the test 
R  again: 
R 
R  - make sure that the CONTROL UNIT 
R  - RAT is correctly connected to 
R  the RAT control panel
 - do a check of the electrical
 connection of the solenoid 
R  valve of the RAT ground check 
R  module 
R  - replace the RAT ground check 
R  module (Ref. TASK 29-22-52-000-
R  001) and (Ref. TASK 29-22-52-
R  400-001) 
R 
R  - replace the RAT (Ref. TASK 29-
R  22-51-000-001) and (Ref. TASK 
R  29-22-51-400-001). 

-
the flow must be between 70 l.min (18.4918 USgal.mn) and 75 l.min (19.8127 USgal.mn).

On the test set:

-
the green indicator light goes off,

-
the amber OIL PRESSURE indicator light comes on for some seconds, (the pump changes from the motor to the pump mode)

 -
the RAT speed decreases and stops.

R 1EFF : 001-049, 051-061, 101-105, 201-203, 1 29-22-00Page 552 1 1 Config-1 May 01/05 1 1 1CES 1

R **ON A/C 001-049, 051-061, 101-105, 201-203,
R Post SB 29-1111 For A/C 001-049,051-061,101-105,201-203,
　
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