500 Engine Control System Cable Locations and Definitions
Nov 15/67 Figure 407 76-11-71
Page 413
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
Speed Brake Control Lever Adjustment 500
76-11-71 Figure 408 Nov 15/67
Page 414
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
AC. Close forward nose compartment and electronics equipment access door 1201. AD. Provide electrical power and perform following:
(1)
On forward overhead panel, position GRD INTERCONNECT switch to CLOSE.
(2)
Close circuit breakers as follows:
(a)
Hydraulic pump depressurize valve on P6 panel.
(b)
Pump B on P6-12 panel.
(c)
Pump B on P6-11 panel.
(3)
On forward overhead panel, position switches as follows:
(a) Hydraulic system B ELEC 1 and ELEC 2 pump switches to ON.
(b) Hydraulic system A ENG 1 and ENG 2 pump switches to ON. AE. If no longer required, remove electrical power from airplane. AF. Test engine start and thrust control systems. Refer to 76-11-0, Engine Control System -
Adjustment/Test.
500
Nov 15/70 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 76-11-71 Page 415
PUSH-PULL CABLES - REMOVAL/INSTALLATION
1. General
A. The push-pull cables transmit the rotary motion of the engine start and thrust shafts at the strut firewall to the left side of the engine cross shaft. Each push-pull cable is an assembly consisting of a push-pul1 cable in a flexible conduit, a telescopic unit at both the upper and lower ends, and two support brackets.
B. The upper telescopic units are attached to cranks with rivets or preferred bolts for installation on the engine start and thrust shafts at the strut firewall. The lower telescopic units have end fittings for connection to cranks on the engine cross-shaft. The lower telescopic unit on the engine thrust push-pull cable has a fine adjustment feature, which permits precise adjustment of the cable for length.
C. The push-pull cables are supported at three common points. Brackets on the push-pull cables attach to the lower support bracket below the firewall and to a bracket at about the 8 o'clock position on the engine. A spacer block at about the 10 o'clock position on the engine spaces and supports the cables. Additionally, the engine start cable is supported by a clamp at the 9 o'clock position on the engine. A common separator block rub strip is installed on the cables about 7-1/2 inches from the attachment brackets at the upper ends.
2.
Deleted
3.
Prepare to Remove Push-Pull Cables
A. Remove side removable cowl panels.
B. Remove fixed fairing (Ref Chapter 71, Fixed Fairing).
4.
Remove Push-Pull Cables
A. Remove washers (4, Fig, 401) and locknuts (5) securing push-pull cable brackets to support bracket studs (2). Rotate engine thrust crank (13) and start crank (9) to disengage push-pull cables from support bracket studs.
B. Remove nut, washers and bolt to disconnect thrust push-pull cable (3) from thrust crank (13). If required, remove locknut (7) and washer (8) retaining engine start crank (9) and remove start crank from engine start shaft. Spacer (10) above start crank (9) will fall free when start crank is removed.
C. Remove nut, washers and bolt to disconnect start push-pull cable (6) from start crank (9). If required, cut lockwire and remove nut (11) and washer (12) from engine thrust shaft. Remove engine thrust crank (13) from thrust shaft.
NOTE: Thrust crank retaining nut (11) has left-hand thread.
575
Oct 20/86 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 76-11-81 Page 401
F59829
Push-Pull Cable Installation 575
76-11-81 Page 402 Figure 401 (Sheet 1) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Feb 01/96
545 Push-Pull Cable Installation
Aug 01/74 Figure 401 (Sheet 2) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 76-11-81 Page 403
F60011
Push-Pull Cable Installation 500
76-11-81 Page 404 Figure 401 (Sheet 3) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Feb 01/96
D. Remove two locknuts (35) and washers (34) from bolts (33) and remove both halves of separator block rub strip (32).
E. Remove locknut (28), washer (27), and bolt (29) attaching clamp (30) to engine start cable support bracket (31) on engine flange. Remove clamp from cable.
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