G02970G02985
Flight Controls Hydraulic Modular Package 500
27-09-200 Figure 401 (Sheet 1) May 15/67
Page 402
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
500 Flight Controls Hydraulic Modular Package
May 15/67 Figure 401 (Sheet 2) 27-09-200
Page 403
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
F. Install protective caps on all hydraulic lines.
G. Remove check valve and O-ring from port 3 of modular package.
H. Remove hydraulic unions and O-rings from remaining six ports of modular package.
I. Install protective caps in open ports.
3. Install Modular Package
A. Remove protective caps from ports in modular package.
B. Install O-ring and check valve in port 3. Free flow direction arrow shall point away from modular package. (See figure 401.)
NOTE: Lightly lubricate O-rings with Skydrol 500 hydraulic fluid or Skydrol assembly lube MCS352 at installation.
C. Install O-rings and hydraulic unions in remaining six ports of modular
package.
D. Ensure hydraulic system is depressurized and remove protective caps from hydraulic lines.
E. Locate modular package on mounting bracket and align hydraulic
connections.
F. Install four mounting bolts.
G. Connect hydraulic lines to modular package.
H. Install electrical connectors at motor valves and low pressure warning
switch.
I. On panel P6 close the following circuit breakers:
(1)
FLT CONTR SHUT-OFF VALVES
(2)
SPOILER SHUT-OFF VALVES
(3)
IND LIGHTS
J. Test modular package. See Flight Controls Modular Package - Adjustment/Test.
27-09-200 Aug 15/67 Page 404
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
FLIGHT CONTROLS HYDRAULIC MODULAR PACKAGE - ADJUSTMENT/TEST
1. General
A. There are no adjustments to the flight controls hydraulic modular package. This section provides a test which should be used to determine proper operation of the package.
2. Flight Controls Hydraulic Modular Package Test
A. Prepare Modular Package for Test
(1)
Pressurize hydraulic reservoirs. Refer to Chapter 29, Hydraulic Power.
(2)
Connect external electrical power to airplane.
(3)
Turn on hydraulic system B pump No. 1 or No. 2 to pressurize hydraulic system B.
(4)
If left modular package is being tested, open hydraulic interconnect valve to pressurize hydraulic system A.
B. Test Modular Package
(1)
Position flight controls and spoiler switches to ON position.
NOTE: System A switches control modular package in left wheel well and system B switches control modular package in right wheel well.
(2)
Check that indicator levers on both motor valves are at position 1.
(3)
Actuate aileron control wheel, rudder pedals, and control column to bleed hydraulic system.
(4)
Check for hydraulic leakage at modular package.
(5)
Position both spoiler switches to OFF.
(6)
Check that left motor valve indicator lever moves to position 2.
(7)
Rotate aileron control wheel and check that spoilers do not operate.
(8)
Position both flight controls switches to OFF.
(9)
Check that right motor valve indicator lever moves to position 2.
(10)
Check that LOW PRESSURE warning light comes on.
(11)
Position flight controls and spoiler switches to ON.
(12)
Check that LOW PRESSURE warning light goes off.
(13)
Turn off hydraulic system B pump No. 1 or 2 and close hydraulic interconnect valve.
(14)
Check that LOW PRESSURE light comes on and that master warning and caution lights and flight controls warning light come on.
500
May 15/67 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-09-200 Page 501
C. Restore Airplane to Normal Configuration
(1)
Remove electrical power if no longer required.
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