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 2)  Do a continuity check between the pins shown in step 1, Fig. 204, for switches S12, S16, and do these adjustments as necessary. a) If an open circuit exists, push the locking channel on
 the microswitch pack and turn the S12 adjustment bolt one turn then turn the S16 adjustment bolt one turn in the counterclockwise direction. Continue this sequence just until a closed circuit exists for both switches. Continue to turn each adjustment bolt counterclockwise the minimum amount necessary to lock the bolts in the channel.
 b)  If a closed circuit exists, continue with this procedure.
 3)  Do a continuity check between the pins shown in step 1, Fig. 204, for switches S21, S22, S23, S24, and do these adjustments as necessary. a) If an open circuit exists, push the locking channel on
 the microswitch pack and turn the adjustment bolt counterclockwise just until an closed circuit exists. Continue to turn the adjustment bolt counterclockwise the minimum amount necessary to lock the bolt in the channel.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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757 MAINTENANCE MANUAL
 b)  If a closed circuit exists, go to step 2.
 (b) Step 2: 1) Set the left and right autothrottle cam's to the position shown in step 2, Fig. 204, for switches S12, S21, and S23. 2) Do a continuity check between the pins shown in step 2, Fig. 204, for switches S12, S21, S23, and do these adjustments as necessary. a) If a closed circuit exists, push the locking channel on the microswitch pack and turn the adjustment bolt counterclockwise until an open circuit exists. Then turn the adjustment bolt clockwise just until a closed circuit exists. Continue to turn the adjustment bolt clockwise the minimum amount necessary to lock the bolt in the channel.
 b)  If an open circuit exists, push the locking channel on the microswitch pack and turn the adjustment bolt clockwise just until a closed circuit exists. Continue to turn the adjustment bolt clockwise the minimum amount necessary to lock the bolt in the channel.
 (c) Step 3: 1) Set the left and right autothrottle cam's to the position shown in step 3, Fig 204, for switches S16, S22, and S24. 2) Do a continuity check between the pins shown in step 3, Fig. 204, for switches S16, S22, S24, and do these adjustments as necessary. a) If a closed circuit exists, push the locking channel on the microswitch pack and turn the adjustment bolt counterclockwise until an open circuit exists. Then turn the adjustment bolt clockwise just until a closed circuit exists. Continue to turn the adjustment bolt clockwise the minimum amount necessary to lock the bolt in the channel.
 b)  If an open circuit exists, push the locking channel on the microswitch pack and turn the adjustment bolt clockwise just until a closed circuit exists. Continue to turn the adjustment bolt clockwise the minimum amount necessary to lock the bolt in the channel.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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757 MAINTENANCE MANUAL
 F. Autothrottle Microswitch Pack - Installation Test
 NOTE: You must do this test to check for correct microswitch operation.
____ S 222-053
 (1) Do the continuity checks for each switch shown in Figure 205.
 NOTE: Make sure the correct Figure and Sheet is selected for the
____ airplane being tested. The airplane information is located on the lower left corner of the page.
 (a)  Set the Autothrottle Cam to the indicated position and measure the pin continuity as shown for each switch.
 NOTE:____If the microswitches fail this test. Remove the microswitch pack and check the microswitches initial adjustment settings (Refer to the CMM).
 G. Autothrottle Microswitch Pack - Load Shed Test
 NOTE: This test checks the load shed function of the microswitch pack
____
 assembly and the P1 and P2 connector wiring.

 S 432-028
 (1)  
Make sure that the electrical connectors to the microswitch pack assembly are connected.

 S 622-149

 (2)  
Make sure these circuit breakers on the overhead circuit breaker panel, P11, are closed:
　
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