Inspection/Check).
A. Lubricate O-rings with hydraulic fluid or Assembly Lube. Remove protective CPS and install O-ring and hydraulic union at each actuator hydraulic port.
B. Place actuator in airplane and check that hydraulic lines align (Fig. 401).
C. Insert two actuator mounting bolts with heads outboard per detail A and section A-A.
D. Secure actuator to wing mounting bolt with washer and locknut. Tighten locknut 290-410 pound-inches.
E. Secure actuator piston rod end to spoiler mounting bolt with washer and locknut.
F. Locate bracket and hydraulic lines. Install two mounting bolts and lockwire bolts together.
G. Ensure that hydraulic system A is depressurized.
H. Remove protective plugs from hydraulic lines.
I. Connect hydraulic lines to actuator. Tighten hydraulic lines.
J. Pressurize hydraulic reservoirs (Ref Chapter 29, Hydraulic Reservoir Pressurization).
K. Place SPOILER A and B switches in OFF position.
L. Provide system A hydraulic power (Ref 27-62-0).
M. Actuate speed brake control lever to bleed spoiler actuators.
N. Check that there is no hydraulic leakage at actuator.
O. Adjust and test ground spoiler actuator. Refer to No. 1 and 8 Ground Spoiler Actuator -Adjustment/Test.
27-62-101 Sep 20/81 Page 404
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
5. Return Airplane to Normal
A. Raise flaps, if applicable.
B. Lower spoilers, if applicable.
C. Remove system A hydraulic power (Ref 27-62-0, Maintenance Practices).
D. Position spoiler switches to ON.
E. Remove electrical power if no longer required.
F. Check hydraulic reservoirs and service if required (Ref Chapter 12, Hydraulic Servicing).
500
May 20/82 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-62-101 Page 405
NO. 1 AND 8 GROUND SPOILER ACTUATOR - ADJUSTMENT/TEST
1. Ground Spoiler Adjustment
A. Equipment and Materials
(1)
Corrosion Preventive Compound -MIL-C-11796, Class 3
(2)
Sealant - BMS 5-95, Type I, Class B-1/2 or BMS 5-95, Type II, Class B-2 (Preferred)
(3)
Sealant - BMS 5-26, Type II, Class B-2 (Optional)
B. Prepare Ground Spoiler for Adjustment
(1)
Provide electrical power.
(2)
Provide systems A and B hydraulic power (AMM 27-62-0/201).
(3)
Place speed brake control lever in UP position to raise al1 spoilers.
(4)
Retract trailing edge flaps to full up.
(a)
Place flap control lever in FLAP UP position.
(b)
Pull inboard on WFFA cable in wheel well until jackscrew stops contact.
(5)
Place speed brake control lever in DOWN position to lower al1 spoilers.
(6)
Place SPOILER A and B switches in OFF position.
(7)
Check ground spoiler actuators for hydraulic leaks.
C. Adjust Ground Spoiler Actuator
(1) Check that ground spoiler to flap clearance is per Fig. 501. Clearance is to be measured near centerline of panel.
500
May 01/01 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-62-101 Page 501
A89704
No. 1 and No. 8 Ground Spoiler Adjustment 500
27-62-101 Figure 501 Oct 20/92
Page 502
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
(2)
If spoiler to flap clearance is not within limits:
(a)
Record spoiler to flap clearance.
(b)
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 MP).
WARNING: DO NOT PUT ANY PART OF BODY BETWEEN SPOILER AND WING UNLESS HYDRAULIC POWER IS REMOVED. SERIOUS INJURY CAN RESULT.
(c)
Break lockwire, loosen checknut and disengage locking key on actuator piston rod end.
(d)
Turn actuator piston rod to obtain proper spoiler to flap clearance. Each one-sixth turn of the actuator piston rod changes the gap at the trailing edge by 0.045 inch.
CAUTION: NEVER TURN ACTUATOR PISTON ROD IF ACTUATOR IS PRESSURIZED.
(e)
Coat piston rod end threads with corrosion preventative compound.
(f)
Engage locking key with actuator piston rod.
(g)
Tighten checknut 100-200 pound-inches.
(h)
Provide system A hydraulic power (Ref 27-62-0 MP).
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