757
MAINTENANCE MANUAL

LEFT RIGHT
ENGINE THRUST ENGINE THRUST

MICROSWITCHES (20 LOCATIONS)

PIN ARRANGEMENT FOR EACH SWITCH (EXAMPLE) (EXAMPLE) MICROSWITCH PACK - SWITCH OPERATION MODES
POSITION OF MICROSWITCH WHEN THE
ASSEMBLY ARM IS IN THE RELEASED STATE.

POSITION OF MICROSWITCH WHEN THE ASSEMBLY
ARM IS IN THE PUSHED IN (ACTIVATED) STATE.

Microswitch Pack Assembly Switches
Figure 202 (Sheet 3)

H02215
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MAINTENANCE MANUAL

MICROSWITCH ACTIVATION ARM
SWITCH/TRUNNION HOUSING
TRAVEL SEE

SPRING
CHANNEL

TRUNNION
MOUNTING
ARM

ADJUSTING BOLTS
MICROSWITCH PACK - MOUNTING ARM/TRUNION DETAIL

INITIAL ADJUSTMENT RANGE
ADJUSTING BOLT ADJUSTMENT DIRECTIONS: . CW DIRECTION - PUSHES IN THE MICROSWITCH ACTIVATION ARM. . CCW DIRECTION - RELEASES THE MICROSWITCH ACTIVATION ARM.
Microswitch Pack Assembly Switches
Figure 202 (Sheet 4)

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H02152
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757
MAINTENANCE MANUAL

 TASK 22-32-04-402-014
 2.  Microswitch Pack Assembly Installation
______________________________________
 A.  Equipment
 (1)  
VTVM, Model 427A
 Hewlett Packard
 1501 Page Mill Rd.
 Palo Alto, CA 94304

 (2)  
Rig Pin AT1 - P/N B20003-25, part of kit
 B20003-67 (Ref 20-10-24)

 B.  Access
 (1)  
Location Zones
 113/114 Area Forward of NLG Wheel Well
 211/212 Flight Compartment

 (2)  
Access Panel 113AL Flight/Landing Gear/Engine Control Components

 C.  Install the Microswitch Pack Assembly (Fig. 201)
 S 432-042
 (1)  Put the microswitch pack in position and attach the four bolts, washers, and nuts.
 D.  GUN 001-010, 101-104 PRE-SB 78-32;
 Microswitch Adjustment (Fig. 204)

 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.
 S 862-102
 (1)  
Make sure the thrust lever rod is adjusted correctly (AMM 76-11-00/501).

 S 482-133

 (2)  
With the throttle in the idle position, put the rig pin AT1 through the autothrottle side frames and cams.

 S 482-134

 (3)  
The rig pin must be installed so that the autothrottle clutch link is in the center.

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MAINTENANCE MANUAL

NO NC  S14: SPEED BRAKE RETRACT RIGHT 
NO NC  S10: SPEED BRAKE RETRACT LEFT 
NO NC  S17: LOAD SHED/PRESSURE CONTROL LEFT 
NO NC  S1: LANDING WARNING LEFT 
NC NO  S16: TMS RIGHT THRUST REVERSER 
NC NO  S12: TMS LEFT THRUST REVERSER 
NO NC  S2: LEFT AUTOBRAKE/AUTOBRAKE RTO 
NO NC  S3: LEFT AUTOBRAKE/AUTOBRAKE RTO 
NO NC  S19: ECC OFF LEFT 

P1 CONNECTOR ____ SWITCH MODES SHOWN WITH THROTTLE
NOTE: AT IDLE POSITION (O` A/T CAM POSITION).
Microswitch Pack - Wire Schematic Figure 203 (Sheet 1)
F59182
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