(2)
AMM 27-62-04/401, Engine Throttle Switches
(3)
AMM 31-26-11/401, Thrust Lever Actuated Landing Gear Warning Switches
(4)
AMM 76-11-04/201, Engine Control Cables
B. Access
(1)
Location Zone
205 Electronic Compartment
(2)
Access Panel
1201 Electronic Equipment Access Door
C. Prepare to Remove the Torque Switch Mechanism
S 864-003-C00
(1) Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a) P18-1 Panel
1) AUTOTHROTTLE AC
2) AUTOTHROTTLE DC
S 014-004-C00
(2) Open the electronic equipment access door No. 1201
(AMM 12-31-11/201).
D. Remove the Torque Switch Mechanism
S 494-005-C00
(1) Install cable clamps on the cables.
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ALL ú ú C02 Page 401 ú Nov 15/98
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
SEE A
TORQUE SWITCH
MECHANISM
FWD TORQUE SWITCH LEADS DOWEL PIN
THROTTLE SWITCHES
THRUST
T1A CONTROL
A
CABLES T1B
TORQUE SWITCH MECHANISM
A
THRUST CABLE GUARD
T2B
IDLER
CONTROL
PULLEY
T2A
CABLES ACTUATOR
SEE B
SUPPORT
A
STRUCTURE
ATTACH BOLT FORTHE TORQUE SWITCH MECHANISM (4 LOCATIONS)
ACTUATOR ATTACH SCREW (4 LOCATIONS)
B
Autothrottle Torque Switch Mechanism Installation
Figure 401 (Sheet 1)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
TB CABLE
TORQUE SWITCH
GROOVE 2
GROOVE 4
LOWER (OUTPUT) QUADRANT
ENGINE NO. 1 ENGINE NO. 2
A-A A-A
UPPER (INPUT) QUADRANT
GROOVE 1
GROOVE 3
CABLE TERMINAL RETAINER
Autothrottle Torque Switch Mechanism Installation
Figure 401 (Sheet 2)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
S 034-006-C00
(2) Disconnect the T( )A and T( )B cables at the turnbuckles forward and aft of the torque switch mechanism (AMM 76-11-04/201). (a) Tag the cables to make sure the installation is correct.
S 034-007-C00
(3) Disconnect the leads of the torque switch from the adjacent terminal block.
(a) Tag the switch leads to make sure the installation is correct.
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