S 434-012
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(3) S 434-013Connect the hydraulic line to the pressure transmitter.
(4) S 434-014Connect the electrical connector to the pressure transmitter.
(5) S 864-015Remove the DO-NOT-CLOSE tags and close these circuit breakers on the overhead panel, P11: (a) 11K15, HYDRAULICS ELEC PUMP C1 (b) 11K16, HYDRAULICS ELEC PUMP RIGHT (c) 11K17, HYDRAULICS SYSTEM PRESS LEFT (d) 11K18, HYDRAULICS SYSTEM PRESS CENTER (e) 11K24, HYDRAULICS ELEC PUMP C2 (f) 11K25, HYDRAULICS ELEC PUMP LEFT (g) 11K26, HYDRAULICS SYSTEM PRESS RIGHT (h) EICAS (6 locations)
(6) S 864-016Supply electrical power (AMM 24-22-00/201).
(7) S 864-017Pressurize the hydraulic system that contains the new pressure transmitter (AMM 29-11-00/201).
(8) S 864-018Make sure these circuit breakers on the P11 are closed: (a) 11K9, LEFT ENGINE OIL PRESS (b) 11K35, RIGHT ENGINE OIL PRESS
(9) S 714-019Push the ELEC/HYD switch on the EICAS MAINT panel on the right side panel, P61.
S 214-020
(10) Make sure the (L, R, C) HYD PRESS indication on the EICAS display shows between 2850 and 3150 psi.
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S 214-021
(11)
Do a check for leakage in the hydraulic line at the pressure transmitter.
S 944-027
(12)
Clean all hydraulic fluid from the installation area (AMM 12-25-01/301).
CAUTION:_______ QUICKLY CLEAN THE INSTALLATION AREA OF ALL HYDRAULIC
FLUID. HYDRAULIC FLUID CAN CAUSE DAMAGE TO THE AIRPLANE
EQUIPMENT.
S 094-023
WARNING: USE THE PROCEDURE IN AMM 32-00-15/201 TO REMOVE THE DOOR LOCKS.
_______ THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
(13)
Remove the door locks from the landing gear doors and close the doors (AMM 32-00-15/201).
S 864-024
(14)
Remove the hydraulic power if it is not necessary (AMM 29-11-00/201).
S 864-025
(15)
Remove electrical power if it is not necessary (AMM 24-22-00/201).
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HYDRAULIC FLUID TEMPERATURE INDICATING SYSTEM - DESCRIPTION AND OPERATION
_________________________________________________________________________
General
_______
A. A hydraulic fluid temperature indicating system is provided for each main hydraulic system. This system indicates fluid temperature in each reservoir and overheat in each pump. The pump overheat warning lights are on the hydraulic control panel in the flight compartment. The fluid temperature in each reservoir is shown as a digital readout on the EICAS display. The EICAS display also provides overheat warning messages. The overheat warning lights are powered by 28 volts dc from master dim and test circuit breakers on overhead panel P11.
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