D. Access
(1)
Location Zones
197 Wing to Body - Aft Lower Half (Left)
211/212 Control Cabin
732/742 MLG Body Door
(2)
Access Panel
197KL Hydraulic Service Bay
E. Install the Fluid Quantity Transmitter (Fig. 401)
S 644-011
(1)
Apply a layer of hydraulic lubricant or hydraulic fluid on a new o-ring (2).
S 434-012
(2)
Install the new O-ring (2) on the fluid quantity transmitter (1).
S 164-013
(3)
Clean the mounting flange.
S 424-014
CAUTION: BE CAREFUL NOT TO CAUSE DAMAGE TO THE FLUID QUANTITY
_______ TRANSMITTER OR RESERVOIR WHEN YOU INSTALL THE FLUID QUANTITY TRANSMITTER.
(4)
Put the fluid quantity transmitter (1) in the reservoir.
S 034-015
(5)
Install the bolts (3) and washers (4) to attach the fluid quantity transmitter to the reservoir and tighten the bolts as follows:
(a) Tighten the bolts to 25-30 pound-inches.
(6)
Install a lockwire on the bolts (3).
S 434-016
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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757
MAINTENANCE MANUAL
(7) S 434-017Connect the electrical connector to the fluid quantity transmitter (1).
(8) S 864-018Close the drain valve.
(9) S 434-019Put a lockwire on the valve handle.
S 864-020
(10)
Supply electrical power (AMM 24-22-00/201).
S 864-021
(11)
Remove 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)
11K19, HYDRAULICS QTY CTR
(d)
11K20, HYDRAULICS QTY LEFT
(e)
11K21, HYDRAULICS QTY RIGHT
(f)
11K24, HYDRAULICS ELEC PUMP C2
(g)
11K25, HYDRAULICS ELEC PUMP LEFT
(h)
EICAS (6 locations)
S 714-022
(12)
Push the ELEC/HYD switch on the EICAS MAINT panel on the right side panel, P61.
S 614-024
(13)
Fill the hydraulic reservoir with the new fluid quantity transmitter (AMM 12-12-01/301).
S 864-025
(14)
Pressurize the reservoir with the new fluid quantity transmitter (AMM 29-11-00/201).
S 214-026
(15)
Make sure there is no hydraulic leakage at the fluid quantity transmitter.
S 164-027
CAUTION: QUICKLY CLEAN THE INSTALLATION AREA OF ALL HYDRAULIC
_______ FLUID. HYDRAULIC FLUID CAN CAUSE DAMAGE TO THE AIRPLANE EQUIPMENT.
(16) Clean all hydraulic fluid from the installation area (AMM 12-25-01/301).
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