S 865-213

 (19)
 Put the C HYD PUMPS ELEC 2 switch, on the hydraulic control panel, in the ON position.

 S 215-214

 (20)
 Make sure the ACMP C2 in the center hydraulic system, in the aft left wing-to-body fairing, starts after 3 seconds.

 S 215-215

 (21)
 Make sure the PRESS light for the ACMP C1, on the hydraulic control panel, goes off in less than 2 seconds after the pump starts.

 S 215-216

 (22)
 Make sure the SYS PRESS light for the center hydraulic system, on the hydraulic control panel, is off.

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
 S 215-217
 (23) Make sure these EICAS messages do not show on the EICAS display:
 (a)  
C HYD SYS PRESS

 (b)  
C HYD ELEC 2.

 S 215-218
 (24)
 Make sure the EICAS message, C HYD ELEC 1, shows on the EICAS display.

 S 215-219

 (25)
 Make sure the C HYD PRESS indication, on the EICAS display, is 2850 to 3150 psi.

 S 735-220

 (26)
 Do these steps to do a test of the ACMP C2 enable relay:

 (a)  
Open this circuit breaker on the P6 panel:
 1) 6K19, HYD EMP ENABLE C2

 (b)  
Make sure the ACMP C2 in the center hydraulic system, in the aft left wing-to-body fairing, stops.

 (c)  
Close this circuit breaker on the P6 panel:
 1) 6K19, HYD EMP ENABLE C2

 (d)  
Make sure the ACMP C2 in the center hydraulic system, in the aft left wing-to-body fairing, starts after 3 seconds.

 S 865-224
 (27) Remove the DO-NOT-CLOSE tag and close this circuit breaker on the P11 panel:
 (a)  11K15, ELEC PUMP C1
 S 865-225
 (28)
 Put the C HYD PUMPS ELEC 1 switch, on the hydraulic control panel, in the ON position.

 S 215-226

 (29)
 Make sure the ACMP C2 in the center hydraulic system, in the aft left wing-to-body fairing, stops in less than 1 second.

 (30)
 Put the left BUS TIE switch, on the P5 panel, in the ISLN position.

 S 215-228

 (31)
 Make sure the ACMP C2 in the center hydraulic system, in the aft left wing-to-body fairing, starts after 3 seconds.

 (32)
　
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