G38856
No. 4 and No. 5 Ground spoiler Installation 500
27-62-12 Figure 401 Feb 20/88
Page 402
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
4. Install Ground Spoiler
A. Accomplish following:
(1)
Check attachment points for allowable wear (Ref 27-62-12 I/C).
(2)
Position bearings in ground spoiler at inboard and outboard hinge location (Fig. 401).
B. Position ground spoiler on airplane.
C. Insert four hinge bolts. Center hinge bolts with boltheads outboard. Inboard and outboard hinge bolts with boltheads inboard.
D. Secure two outer hinge bolts.
(1)
Place washer and nut on bold. Tighten nut 50 to 70 pound-inches.
(2)
Install cotter pin.
E. Secure two center hinge bolts.
(1)
Place washers and nut on bolt. Tighten nut 630 to 950 pound-inches.
(2)
Install cotter pin.
F. Rotate ground spoiler through full travel and check for binding or interference.
G. Connect two bonding jumpers to ground spoiler. Jumpers attach at lower leg of leading edge channel adjacent to inboard and outboard hinges.
NOTE: If hole is not provided for fastener, locate hole 9 inches in from end of panel and 0.5 inch aft of leading edge on lower leg.
H. Install the two bolts attaching pushrods to ground spoiler.
(1)
Install bolts with heads outboard.
(2)
Secure bolts with washers and locknuts. Tighten nuts 290 to 410 pound-inches.
I. Ensure hydraulic system A is depressurized and remove ground spoiler actuator lock.
J. Position ground spoiler down.
500
Jun 20/88 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-62-12 Page 403
K. Check that gaps between ground spoiler and fixed wing structure are 0.40 ±0.05 inch at both ends of panel.
L. Check that end seals on the ground spoiler make firm contact with wing structure.
M. Check that short vertical bulb seal between spoiler and wing upper fixed panel is compressed
0.15 ±0.05 inch and at least 50 per cent covered by spoiler.
N. Adjust and test ground spoiler installation (Ref No. 4 and 5 Ground Spoiler - A/T).
5. Return Airplane to Normal Configuration
A. If applicable, apply non-skid overwing escape route markings (Ref 51-21-151).
B. Turn off hydraulic system B pumps No. 1 and 2 and CLOSE hydraulic interconnect valve.
C. Position spoiler control switches to ON.
D. Determine whether there is any further need for electrical power on the airplane; if not, remove power.
500
27-62-12 Page 404 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Oct 20/87
NO. 4 AND NO. 5 GROUND SPOILERS - ADJUSTMENT/TEST
1. Ground Spoiler Adjustment
A. Equipment and Materials
(1) Corrosion Preventive Compound, MIL-C-11796, Class 3
B. Prepare Ground Spoiler for Adjustment
(1)
Check that electrical power is connected to airplane and spoiler A and B switches are on.
(2)
Pressurize hydraulic system A (Ref 27-62-0, M/P).
(3)
Place speed brake control lever in UP position to raise all spoilers.
(4)
Retract trailing edge flaps to full up with jackscrew stops in contact.
(a)
Set flap control lever to 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 all spoilers.
(6)
Turn off spoiler A and B switches.
C. Adjust Ground Spoiler
(1)
Check that spoiler to flap clearance is per Fig. 501.
(2)
If spoiler to flap clearance is not within limits:
(a) Measure and record spoiler to flap clearance.
504
May 15/81 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-62-12 Page 501
A89692
Spoiler Adjustment 500
27-62-12 Figure 501 Oct 20/92
Page 502
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
(b)
Provide access to spoiler actuators by either lowering flaps or by placing speed brake control lever in UP position. Depressurize hydraulic system A (Ref 27-62-0, M/P).
WARNING: DO NOT PUT ANY PART OF BODY BETWEEN SPOILER AND WING UNLESS HYDRAULIC POWER IS REMOVED. SERIOUS INJURY CAN RESULT. 中國航空網 www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：737 AMM 飛機維護手冊 飛行操縱 FLIGHT CONTROLS 3(126)
