A89703
No. 1 and No. 8 Ground Spoiler Adjustment 500
27-62-91 Figure 501 Oct 20/92
Page 502
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
(c)
Break lockwire and loosen checknut on actuator rod end.
(d)
Disengage actuator key from piston rod.
(e)
Turn actuator piston rod to obtain proper spoiler to flap clearance. Each one-sixth turn will change spoiler to flap clearance by approximately 0.045 inch.
CAUTION: NEVER TURN PISTON ROD IF ACTUATOR IS PRESSURIZED.
(f)
Engage actuator key with piston rod.
(g)
Coat rod end threads with corrosion preventive compound.
(h)
Tighten rod end checknut 290 to 410 pound-inches.
(i)
Lockwire checknut to spoiler key.
(j)
Apply a bead of sealant to the rod end checknut.
(k)
Provide system A hydraulic power.
(l)
Lower spoilers, if applicable.
(m)
Check that spoiler to flap clearance is within limits.
(3) Test No. 1 and 8 ground spoiler.
2. Ground Spoiler Test
A. Equipment and Materials
(1)
Control Column Protractor Assembly-4MIT65B80307-1 (Preferred) or F52485-500 (Optional) which is used with the following adapters:
(a)
Aileron Control Wheel Protractor Mount-F72790
(b)
Forward Thrust Lever Protractor Adapter-F72952-2
(2)
Control Surface Protractor Stand Assembly - F71292-17
B. Test Ground Spoiler
(1)
Set speed brake control lever to UP position.
(2)
Check that ground spoilers are rotated 40 +2 degrees up from ful1 down position.
(3)
Using control surface protractor, check that ground spoiler 1 is within 2 degrees of ground spoiler 8.
(4)
Place speed brake control lever in DOWN position.
(5)
Check that ground spoilers are full down.
501
May 01/99 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-62-91 Page 503
3. Restore Airplane to Normal Configuration
A. Remove system A hydraulic power. Refer to 27-62-0.
B. Remove electrical power if no longer required.
500
27-62-91 Page 504 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Feb 15/73
NO. 1 AND 8 GROUND SPOILER ACTUATOR - REMOVAL/INSTALLATION
1. Equipment and Materials
A. Fire resistant hydraulic fluid - BMS 3-11; or Skydrol Assembly Lube - MCS352
2. Prepare Ground Spoiler Actuator for Removal
A. Provide electrical power.
B. Provide system A hydraulic power (Ref 27-62-0, - Maintenance Practices).
C. Turn off SPOILER A and B switches to remove hydraulic power from flight spoilers. Provide access to spoiler actuator by either lowering flaps and opening applicable hinged trailing edge panel or by placing speed brake control lever in UP position to raise spoilers. Depressurize hydraulic system A (Ref 27-62-0, Maintenance Practices).
WARNING: DO NOT PUT ANY PART OF BODY BETWEEN SPOILER AND WING UNLESS HYDRAULIC POWER IS REMOVED. SERIOUS INJURY CAN RESULT.
3. Remove Ground Spoiler Actuator
A. Disconnect two bracket mounting bolts from actuator (Fig. 401).
B. Disconnect actuator piston rod end from spoiler.
C. Disconnect hydraulic lines from actuator. Provide a container to catch any hydraulic fluid spilled. Lower hydraulic lines and bracket by swivel joints.
D. Install protective plugs in hydraulic lines.
E. Remove mounting bolt attaching actuator to wing structure. Remove actuator.
F. Remove hydraulic unions from actuator.
G. Install protective caps in actuator ports.
500
May 15/81 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-62-101 Page 401
G41086G41089
No. 1 and No. 8 Ground Spoiler Installation 500
27-62-101 Figure 401 (Sheet 1) Sep 20/81
Page 402
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
500 No. 1 and No. 8 Ground Spoiler Installation
Sep 20/81 Figure 401 (Sheet 2) 27-62-101
Page 403
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
4. Install Ground Spoiler Actuator
NOTE: If a used bolt or bearing is being installed, check for allowable wear (Ref 27-61-51,
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