S 865-055
 (5)  
Remove the engine shutdown inhibit in the EICAS computers
 (AMM 31-41-00/201).

 S 215-056

 (6)  
Make sure the C SYS PRESS, C ELEC 1 PRESS and C ELEC 2 PRESS lights on the hydraulic control panel are on.

 (7)  
Make sure the C HYD SYS PRESS message is shown on EICAS.

 S 215-057
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 S 015-058
 (8)  Make sure the C HYD ELEC 1 and C HYD ELEC 2 messages are not shown on EICAS.
 NOTE: The C HYD SYS PRESS message stops the display of the C HYD
____
 ELEC 1 and C HYD ELEC 2 messages on EICAS.

 S 015-059
 (9)  
Open the access panel 197KL for the central hydraulic service center (AMM 06-41-00/201).

 S 495-060

 (10)
 Connect the hydraulic service cart to the ground power connections for the center hydraulic system (AMM 29-11-00/201).

 S 865-061

 (11)
 Slowly pressurize the center hydraulic system with the service cart.

 S 215-062

 (12)
 Make sure the C SYS PRESS light on the hydraulic control panel goes off at a pressure between 1300 and 1800 psi.

 NOTE: The C ELEC 1 PRESS and C ELEC 2 PRESS warning lights will
____ stay on during this test. They stay on because the center system electric pumps are not in operation.
 S 215-063
 (13)
 Make sure the C HYD SYS PRESS message is not shown on EICAS.

 S 215-064

 (14)
 Make sure the C HYD ELEC 1 and C HYD ELEC 2 messages are shown on EICAS.

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 S 215-065
 (15)
 Make sure the hydraulic pressure indication is the same as the service cart pressure (+/- 150 psi).

 S 865-066

 (16)
 Slowly decrease the pressure in the center hydraulic system to 1200 psi.

 S 215-067

 (17)
 Make sure the C SYS PRESS light on the hydraulic control panel is on.

 S 215-068

 (18)
 Make sure the C HYD SYS PRESS message is shown on EICAS.

 S 215-069

 (19)
 Make sure the C HYD ELEC 1 and C HYD ELEC 2 messages are not shown on EICAS.

 S 865-070

 (20)
 Increase the pressure in the center hydraulic system to 3000 psi.

 S 865-071

 (21)
 Push the ELEC/HYD and then the AUTO-EVENT READ switches on the EICAS maintenance panel on the P61 panel. Push and hold the ERASE switch for approximately three seconds.

 S 215-072

 (22)
 Make sure the C HYD SYS MAINT message is not shown on EICAS.

 (23)
 Decrease the pressure in the center hydraulic system to 2750 psi.

 S 215-074

 (24)
 Make sure the C HYD SYS MAINT message is shown on EICAS after approximately 60 seconds.
　
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