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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
S 765-015-N00
 (17) Do a check of the autothrottle reset switch, S10.
 (a)  Make sure the switch does not operate at the mid-travel position: 1) Push and hold the disconnect lever of the No. 4 thrust
 lever 0.10 inch (2.54 mm) forward, to the mid-travel position. 2) Make sure that there is no continuity through pin 33 and
 34. 3) Release the disconnect lever.
 (b)  Make sure the switch operates at the full-travel position: 1) Push and hold the disconnect lever of the No. 4 thrust
 lever all the way forward. 2) Make sure that there is continuity between pin 33 and 34. 3) Release the disconnect lever.
 S 085-016-N00
 (18)
 Remove the ohmmeter from the connector junction, pins 33 and 34.

 S 435-017-N00

 (19)
 Connect the connector, D41291 (WDM 34-61-13).

 S 415-041-N00

 (20)
 Install the ceiling panels in the main passenger cabin (AMM 25-22-01/401).

 TASK 76-12-02-825-018-N00
 3. Go-Around Switch Check (Fig. 502)
______________________
 A. Standard Tools and Equipment
 (1)  
Digital Multimeter - Range 0-50 |0.01 volts
 RMS; Commercially
 available

 B.
References

 (1)  
AMM 24-22-00/201, Manual Control

 (2)  
AMM 25-22-01/401, Main Passenger Cabin Ceiling Panels

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(3)  
AMM 31-61-00/501, Integrated Display System

 (4)  
AMM 32-09-02/201, Air/Ground Relays

 (5)  
AMM 76-11-03/201, Control Stand

 (6)  
IPC 76-11-03

 (7)  
WDM 22-12-11

 (8)  
WDM 22-12-31

 (9)  
WDM 22-12-21

 C. Access
 (1)  Location Zone
 211/212 Main Passenger Cabin - Nose to First Door
 221/222 Flight Compartment

 D. Preconditions
 S 865-055-N00
 (1)  These conditions are necessary for this task:
 (a)  
Electrical power on (AMM 24-22-00/201).

 (b)  
Integrated Display System serviceable (AMM 31-61-00/501).

 (c)  
Airplane must be in the Ground Mode (AMM 32-09-02/201).

 E. Procedure
 S 015-042-N00
 (1)  
Remove the ceiling panels in the main passenger cabin to get access
 to the connector plugs below the control stand (AMM 25-22-01/401).

 S 035-019-N00

 (2)  
Disconnect the connectors D41191 (WDM 22-12-11), D41291 (WDM
 22-12-31), and D41292 (WDM 22-12-21).

 S 865-020-N00

 (3)  
Make sure the auto go-around levers are fully up.

 S 485-021-N00

 (4)  
Connect the ohmmeter to the connector D41191, pins 16 and 17.

 S 765-022-N00

 (5)  
Do a check of the go-around lever, S1.

 (a)  
Make sure there is continuity between pin 17 and pin 16.

 (b)  
Make sure the switch does not operate at the mid-travel position: 1) Push and hold the go-around lever of the No. 2 thrust lever

 0.10 inch (2.54 mm) down, to the mid-travel position. 2) Make sure that there is continuity between pin 17 and pin
 16.

 (c)  
Push the go-around lever on the No. 2 thrust lever fully down.

 (d)  
Make sure there is no continuity between pin 17 and pin 16.

 (e)  
Release the go-around lever.

 S 765-023-N00
 (6)  Do a check of the go-around lever, S2.
 (a)  Make sure there is continuity between pin 17 and pin 16.
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