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MAINTENANCE MANUAL
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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MAINTENANCE MANUAL
(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:
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
29-33-00
ALL ú ú 01 Page 503 ú May 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
S 215-028
(14)
L and R system: 5.0 |0.5 gallons (18.9 |1.9 liters)
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