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NOTE: Valve yoke is part of valve. Do not remove valve yoke from valve.
C.  Remove landing gear sensor actuators from airplane.
D.  Loosen tubing nuts on three hydraulic lines to valve.
NOTE: Provide means to catch hydraulic fluid leaking from the loosened fittings.
E.  Install protective plugs in hydraulic lines.
F.  Remove three mounting bolts and remove ground spoiler interlock valve from airplane.
G.  Remove reducers and O-rings from three valve ports.
H.  Install protective covers in open ports.
3.  Install Ground Spoiler Interlock Valve
A.  Check that valve operates smoothly through full travel range.
B.  Remove protective caps from three valve ports.
C.  Lightly lubricate O-rings with hydraulic fluid or assembly lube. Instal1 O-rings and hydraulic reducers in each valve port.
D.  Locate valve in airplane and align with hydraulic lines. Secure valve with three mounting bolts and washers. (See figure 401.)
E.  Remove protective plugs in hydraulic lines.
F.  Install hydraulic lines on valve.
500 
Feb 15/73  BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  27-62-61 Page 401 

G40673
Ground Spoiler Interlock Valve Installation  506 
27-62-61  Figure 401  May 15/69 
Page 402 
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 

G.  Install two attaching bolts through landing gear sensor actuators, pivot arm, and valve yoke. Secure bolts with washers and locknuts. Adjust landing gear sensors. Refer to Chapter 32, Landing Gear Safety Sensors.
H.  Provide electrical power.
I.  Provide system A hydraulic power. Refer to 27-62-0.
J.  Check valve and hydraulic connections for leakage.
K.  Move speed brake control lever through several cycles to ensure that hydraulic system is bled.
L.  Adjust and test valve. Refer to Ground Spoiler Interlock Valve - Adjustment/Test.
M.  Check adjustment of landing gear safety sensor. Refer to 32-09-200, Landing Gear Safety Sensor - Adjustment/Test.
4.  Restore Airplane to Normal Configuration
A.  Remove system A hydraulic power. Refer to 27-62-0.
B.  Check hydraulic reservoir and service if required. Refer to Chapter 12, Hydraulic Servicing.
C.  Remove electrical power if no longer required.
543 
Feb 15/73  BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  27-62-61 Page 403 

GROUND SPOILER INTERLOCK VALVE - ADJUSTMENT/TEST
1.  General
A.  Adjustment and test of the ground spoiler interlock valve must be accomplished with airplane jacked so that right main gear shock strut is fully extended.
2.  Ground Spoiler Interlock Valve Adjustment
A.  Equipment and Materials
(1)  Rigging Pins Kit - F70207-3, -52, -61, or -84:
REF NO.  F70207-( )  DIAMETER (INCHES)  LENGTH (INCHES)  FUNCTION 
S/B-3  -11  0.309-0.311  6.7 +0.25  Ground Spoiler Interlock Valve 

B.  Adjust Ground Spoiler Interlock Valve
(1)  
Place airplane on jacks so that right main gear oleo is fully extended (Ref Chapter 7, Jacking).

(2)  
Check that rigging pin S/B-3 can be freely installed through interlock valve yoke (Fig. 501). If required, adjust valve cable (Ref 27-62-51 A/T).

(3)  
Remove rigging pin S/B-3.

(4)  
Test ground spoiler interlock valve.

(5)  
Lower and remove jacks from airplane.

3.  Ground Spoiler Interlock Valve Test
A.  Prepare Ground Spoiler Interlock Valve for Test
(1)  
Place airplane on jacks so that main gear oleo is fully extended (Ref Chapter 7, Jacking).

(2)  
Provide electrical power.

(3)  
Provide system A hydraulic power (Ref 27-62-0 MP).

B.  Test Ground Spoiler Interconnect Valve
(1)  
Place speed brake control lever in UP position.

(2)  
Check that ground spoiler panels show no sign of movement.

500 
Feb 20/88  BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  27-62-61 Page 501 

G40687
Ground Spoiler Interlock Valve Adjustment  500 
27-62-61  Figure 501  Aug 15/69 
Page 502 
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 

(3)  
Place jack under jack pad on right main gear axle. Refer to Chapter 7, Jacking.

　
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