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S 865-225
(68) Close this circuit breaker on the P11 panel:
(a) 11D31, HYDRAULICS PTU CONT
S 215-226
(69)
Make sure the manual lever/position indicator on the PTU control valve moves to the CLOSED position.
S 215-227
(70)
Make sure you can not hear the operation of the PTU.
S 215-228
(71)
Make sure the POWER XFER UNIT message is shown on EICAS.
S 865-229
(72)
Push the ECS/MSG switch on the EICAS maintenance panel on the P61 panel. Push the AUTO EVENT READ switch, then push and hold the ERASE switch for approximately 3 seconds for each page of the EICAS messages.
S 215-230
(73)
Make sure the POWER XFER UNIT message is not shown on EICAS.
S 865-231
(74)
Operate the hydraulic service cart to decrease the pressure in the right hydraulic system to zero.
S 865-336
(75)
Make sure that the hydraulic ground service connections are removed from the left hydraulic system.
S 865-337
(76)
Make sure that the left reservoir quantity reads between 0.75 to
1.00 on EICAS.
G.
System Test for the Left Hydraulic System Flow Limiter
S 865-232
(1)
Make sure the flight controls are in the neutral position.
S 865-233
(2)
Make sure the flap lever on the control stand is in the ZERO detent position and the flaps are in the fully retracted position.
S 865-234
(3)
Make sure the arming switches for the flap and slat alternate drive on the pilots' main instrument panel, P3, are in the off position.
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(4) S 865-235Make sure the position selector switch for the flap and slat alternate drive on the pilot's main instrument panel, P3, is in the NORM position.
(5) S 865-236Make sure the landing gear selector handle on the pilot's main instrument panel, P3, is in the OFF position.
(6) S 865-237Make sure the control switches for the left and right yaw dampers on the overhead panel, P5, are in the INOP position.
(7) S 865-238Make sure these switches on the right side panel, P61, are in the ON position: (a) Flight control shutoff valves for the left system (b) Flight control shutoff valves for the right system
(8) S 215-303Make sure the switch indicator lights are not on.
(9) S 865-239Open these circuit breakers on the P11 panel and attach DO-NOT-CLOSE tags: (a) 11G12, FSEU-1 PWR, FLAP SLAT ELEC UNIT 1 PWR OR FLAP SLAT ELEC UNIT 1 POWER (b) 11H23, FLAP/SLAT ALTN DR SHUTOFF ARM
S 865-250
(10) Move the bypass valve for the leading edge (LE) slat drive to POSITION 1 with the manual valve handle.
NOTE: The bypass valve is in the left forward wing/body fairing.
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