(4)
Examine all of the connections in hydraulic system A for leaks.
(5)
Remove the power from hydraulic system A (AMM 29-15-00/201).
S 792-138
S 862-127
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737-300/400/500MAINTENANCE MANUAL
S 862-174
WARNING: KEEP PERSONS AND EQUIPMENT AWAY FROM ALL CONTROL SURFACES AND
_______ THE NOSE GEAR WHEN HYDRAULIC POWER IS SUPPLIED. THE AILERONS, ELEVATORS, RUDDER, FLAPS, SLATS, SPOILERS, STABILIZER , AND THE NOSE GEAR ARE SUPPLIED WITH POWER BY THE HYDRAULIC SYSTEMS. INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR WHEN HYDRAULIC POWER IS SUPPLIED.
CAUTION: DO NOT OPERATE THE EMDP FOR MORE THAN TWO MINUTES IF THE NO. 2
_______ FUEL TANK CONTAINS LESS THAN 250 GALLONS (1675 POUNDS/760 KILOGRAMS) OF FUEL. YOU MUST LET THE RESERVOIR TEMPERATURE DECREASE TO AMBIENT TEMPERATURE BEFORE YOU OPERATE THE PUMP AGAIN. DAMAGE TO EQUIPMENT CAN OCCUR IF YOU DO NOT DO THIS.
(6)
Pressurize hydraulic system B with the EMDP and EDP (motor engine) (AMM 29-15-00/201).
S 792-175
(7)
Examine all of the connections in hydraulic system B for leaks.
S 862-129
(8)
Set the flap handle to the FLAP UP position and the speed brake lever to the DOWN position.
S 862-130
(9)
Remove the power from hydraulic system B (AMM 29-15-00/201).
K. Put the Airplane Back to Its Usual Condition
S 862-131
(1)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a) P6 panel, 1) FLIGHT CONTROL ALTERNATE TRAILING EDGE FLAP DRIVE AC 3o 2) PTU/LG BYPASS VALVE CONTROL (2 places) 3) AUTO SLAT (4 places) 4) LG SYS XFR VALVE (2 places)
(2)
Remove electrical power if it is not necessary (AMM 24-22-00/201).
S 862-132
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737-300/400/500MAINTENANCE MANUAL
TASK 29-00-00-872-183
3. Bleed the Hydraulic System
__________________________
A. Consumable Materials
(1) D00568 Fluid - Hydraulic, BMS 3-11
B. Reference
(1)
AMM 12-12-00/301, Hydraulic Servicing
(2)
AMM 29-00-00/601, Hydraulic System External Leak Check
(3)
AMM 29-09-00/201, Hydraulic Reservoir Pressurization System
(4)
AMM 32-00-01/201, Ground Lock Assemblies
C. Access
(1) Location Zone
217 Right Main Wheel Well
D. Bleed the Hydraulic System Procedure.
S 612-184
(1) Accomplish the hydraulic reservoir servicing procedure (AMM 12-12-00/301).
S 862-189
WARNING: MAKE SURE THE GROUND LOCK PINS ARE INSTALLED ON ALL THE LANDING
_______ GEAR. WITHOUT THE GROUND LOCK PINS, THE LANDING GEAR COULD RETRACT AND CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
(2)
If the ground lock pins are not installed in the nose and the main landing gear, install the ground lock pins (AMM 32-00-01/201).
(3)
Pressurize the hydraulic reservoir (AMM 29-09-00/201).
S 782-186
(4)
Pressurize both A and B hydraulic systems with the Electric Motor-Driven Pump (EMDP) and the Engine-Driven Pump (EDP) (AMM 29-15-00/201).
S 782-185
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