(2)
D00568 Fluid - Hydraulic, BMS 3-11
B. References
(1)
12-12-00/301, Hydraulic System
(2)
20-10-34/701, Metal Surfaces
(3)
24-22-00/201, Manual Control
(4)
29-09-00/201, Hydraulic Reservoir Pressurization System
C. Access
(1) Location Zone
216, 217 Main Wheel Well
D. Prepare for the Installation
S 034-009
(1)
Remove the plug and the O-ring from the lowest drain port in the pump mounting flange (if they are installed).
S 434-010
(2)
Install the O-ring and the drain fitting in the lowest drain port (if they are not already installed).
(3)
Make sure the pump and the electric motor are correctly assembled.
S 214-011
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737-300/400/500MAINTENANCE MANUAL
S 214-012
(4)
Install lockwire on the pump mounting bolts.
S 644-013
(5)
Lubricate the O-rings and the reducers with assembly lube or hydraulic fluid.
S 434-014
(6)
Install the O-rings and the reducers in the pump ports (if they are not already installed).
S 114-015
(7)
Clean the pump mounting bolts, the washers, and the contact surfaces (Ref 20-10-34/701).
S 864-016
(8)
Fill the pump approximately half full with hydraulic fluid through the supply port.
E. Install the Hydraulic Pump Assembly (Fig. 401)
S 864-017
(1) Put the hydraulic pump assembly in its position and install the mounting bolts.
NOTE: The pump mounting bolts, the washers, and the contact
____ surfaces must be clean to supply a sufficient electrical ground.
S 434-018
(2) Connect the supply line, the pressure line and the case drain line to the hydraulic pump.
S 434-043
CAUTION: MAKE SURE THE DISCONNECT POPPET IS STRAIGHT BEFORE YOU
_______ INSTALL THE HOSE HALF OF THE SELF-SEAL DISCONNECT. IF TOO MUCH TORQUE IS NECESSARY TO DO THE INSTALLATION, DISCONNECT THE SELF-SEAL DISCONNECT AND AGAIN MAKE SURE THE POPPET IS STRAIGHT. AFTER THE INSTALLATION, MAKE SURE THE INDICATOR PINS EXTEND A MINIMUM OF 0.06 INCH. IF THE INDICATOR PINS ARE NOT CORRECTLY EXTENDED, FLUID FLOW WILL BE DECREASED OR STOPPED. THIS CAN CAUSE DAMAGE TO THE RESERVOIR OR THE PUMP.
(3)
Connect the supply line at the quick disconnect on the reservoir.
(4)
Install the electrical connector.
S 434-020
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S 864-021
(5) Pressurize the standby system reservoir (Ref 29-09-00/201). S 864-022
WARNING:_______ MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE CONTROL
SURFACES BEFORE YOU SUPPLY HYDRAULIC POWER. THE RUDDER,
LEADING EDGE FLAPS AND SLATS, AND THRUST REVERSERS CAN MOVE
QUIKCLY WHEN YOU SUPPLY HYDRAULIC POWER. THIS CAN CAUSE INJURY
TO PERSONS AND DAMAGE TO EQUIPMENT.
(6) Pressurize the standby system to bleed the pump.
(a)
Supply electrical power (Ref 24-22-00/201).
(b)
Remove the DO-NOT-CLOSE tags and close the applicable circuit breakers: 1) P6-11 Circuit Breaker Panel
a) STBY HYD PUMP NORMAL
b) ELEC HYD PUMP SYS B
2) P6-12 Circuit Breaker Panel a) STBY HYD PUMP (ALT) b) ELEC HYD PUMP SYS A
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