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 S 015-005
 (4)  
Open the access panel, 197KL, for the central hydraulic service center (AMM 06-41-00/201).

 S 865-009

 (5)  
Remove the pressure from the left, right or center hydraulic systems and the reservoirs (AMM 29-11-00/201).

 S 035-010

 (6)  
Disconnect the electrical connector from the pressure switch on the reservoir of the left, right, or center system.

 S 685-011

 (7)  
Open the drain valve and drain the reservoir of the left, right or center system.

 S 685-012

 (8)  
Close the drain valve when the reservoir is empty.

 D.  
Do the System Test of the Quantity Indicating System for the Hydraulic Fluid

 S 865-013
 (1)  
At the reservoir fill station, put the fill selector valve to the system (L, R or C) on which you do the test.

 S 215-014

 (2)  
Make sure the fill indicator shows empty: 0.0 |0.5 gallons

 (0.0 |1.9 liters).
 S 215-016
 (3)
Make sure the RSVR light on the hydraulic control panel is on.

 (4)  
Make sure the message L, R, or C HYD QTY shows on the EICAS.

 S 215-017
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 (5)  S 865-018Push the ELEC/HYD switch on the EICAS maintenance panel on the right side panel, P61.
 (6)  S 215-019Make sure the hydraulic quantity shown on the EICAS is 0.00 to 0.08 (L and R system) or 0.00 to 0.14 (C system), with an RF message.
 (7)  S 615-020Slowly add fluid to the hydraulic reservoir (AMM 12-12-01/301).
 (8)  S 615-021Stop when the RSVR light on the hydraulic control panel goes off and the EICAS message L, R, or C HYD QTY does not show.
 (9)  S 215-022Make sure the fill indicator at the reservoir fill station shows the applicable values: (a) L and R system: 3.0 |0.5 gallons (11.4 |1.9 liters) (b) C system: 1.6 |0.5 gallons (6.1 |1.9 liters)
 S 215-024

 (10)
 Make sure the hydraulic quantity shown on the EICAS is 0.45 |0.08 (L and R system) or 0.45 |0.14 (C system).

 S 615-025

 (11)
 Continue to slowly add fluid to the reservoir.

 S 615-026

 (12)
 Stop when the RF message does not show adjacent to the hydraulic quantity indication on the EICAS.

 S 215-027

 (13)
 Make sure the fill indicator at the reservoir fill station shows the applicable values:

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 S 215-028
 (14)
 L and R system: 5.0 |0.5 gallons (18.9 |1.9 liters)
　
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