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A
757 MAINTENANCE MANUAL
S 214-023
(17)
Make sure the (L, R, C) HYD QTY indication on the EICAS display is the same as the quantity of hydraulic fluid in the reservoir.
S 414-028
(18)
If you replaced the fluid quantity transmitter in the center reservoir, close the access door for the hydraulic service bay, 197KL (AMM 06-41-00/201).
S 094-029
(19)
If you replaced the fluid quantity transmitter in the left or right reservoir, remove the door locks from the landing gear doors and close the doors (AMM 32-00-15/201).
S 864-030
(20)
Remove hydraulic power if it is not necessary (AMM 29-11-00/201).
S 864-031
(21)
Remove electrical power if it is not necessary (AMM 24-22-00/201).
WARNING:_______ USE THE PROCEDURE IN AMM 32-00-15 TO REMOVE THE DOOR LOCKS.
THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURIES TO
PERSONS OR DAMAGE TO EQUIPMENT.
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757 MAINTENANCE MANUAL
HYDRAULIC FLUID QUANTITY MONITOR UNIT - REMOVAL/INSTALLATION
____________________________________________________________
1. General_______
A. This procedure contains two tasks, one to remove and one to install the monitor unit for the hydraulic fluid quantity.
TASK 29-33-51-024-002
2. Remove the Monitor Unit_______________________
A. References
(1)
AMM 06-41-00/201, Fuselage Access Doors and Panels
(2)
AMM 20-10-01/401, E/E Rack Mounted Components
B. Access
(1)
Location Zones
119 Main Equipment Center (Left)
211/212 Control Cabin
822 No. 2 Cargo Door
(2)
Access Panel
119BL Main Equipment Center
C. Remove the Monitor Unit (Fig. 401)
S 864-001
(1) Open these circuit breakers on the overhead panel, P11, and attach DO-NOT-CLOSE tags:
(a)
11K19, HYDRAULICS QTY CTR
(b)
11K20, HYDRAULICS QTY LEFT
(c)
11K21, HYDRAULICS QTY RIGHT
(d)
EICAS (6 locations)
S 014-004
(2)
Open the access door for the main equipment center, 119BL, for access to the E3 rack (AMM 06-41-00/201).
(3)
Remove the monitor unit (AMM 20-10-01/401).
S 024-019
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757
MAINTENANCE MANUAL
QUANTITY MONITOR UNIT
Fluid Quantity Monitor Unit Installation
Figure 401
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