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A
757
MAINTENANCE MANUAL
FORWARD FAIRING OF THE RIGHT WHEEL WELL
SEE A
FORWARD FAIRING OF THE LEFT WHEEL WELL
SEE A
INBD
BOLTS (4 LOCATIONS) FWD
UNION HYDRAULIC RELIEF LINE
RELIEF VALVE
SEE B
FORWARD FAIRING
VALVE
OF THE LEFT WHEEL WELL
(THE FORWARD FAIRING
OF THE RIGHT WHEEL WELL IS OPPOSITE)
UNION
A
FWD OUTBD
HYDRAULIC PRESSURE LINES
RELIEF VALVE (EXAMPLE)
B
Relief Valve Installation Figure 401
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MAINTENANCE MANUAL
S 034-007
(2)
Install a cap on the relief valve.
S 024-008
(3)
Remove the bolts which hold the relief valve.
S 024-009
(4)
Remove the relief valve.
S 034-010
(5)
Remove the unions and the O-rings from the relief valve.
TASK 29-11-29-404-011
3. Install the Relief Valve (Fig. 401)
________________________
A. Consumable Materials
(1) D00054 Hydraulic System Lubricant - MCS 352
B. References
(1)
AMM 12-12-01/301, Hydraulic Systems
(2)
AMM 12-25-01/301, Exterior Cleaning
(3)
AMM 29-11-00/201, Main (Left, Right, and Center) Hydraulic Systems
(4)
AMM 32-00-15/201, Main Gear Door Locks
C. Access
(1) Location Zones
143/144 MLG Wheel Well
D. Install the Relief Valve
S 644-012
(1)
Apply hydraulic lubricant or hydraulic fluid to the new O-rings and the threads of the unions.
S 434-013
(2)
Install the new O-rings on the unions.
S 434-014
(3)
Install the unions on the relief valve.
(4)
Hold the relief valve in its position.
(5)
Install the bolts to hold the relief valve in its position.
(6)
Install the hydraulic lines on the relief valve.
S 424-015
S 424-016
S 434-017
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E. Put the Airplane Back to Its Usual Condition
S 864-018
(1) Remove the DO-NOT-CLOSE tags and close these circuit breakers on the overhead panel, P11:
(a)
11K16, HYDRAULICS ELEC PUMP RIGHT
(b)
11K25, HYDRAULICS ELEC PUMP LEFT
S 614-019
(2)
Fill the applicable hydraulic reservoir (AMM 12-12-01/301).
S 864-020
(3)
Pressurize the applicable hydraulic system and the reservoir (AMM 29-11-00/201).
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本文链接地址：757 AMM 飞机维护手册 液压 CHAPTER 29 - HYDRAULIC POWER 2(23)
