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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 S 015-021
 (3)  Remove the nut and washer from the lower pivot bolt of the adjustment link that secures the inner shock strut door to the shock strut (See Fig. 501)
 NOTE: Do not remove the pivot bolt at this time.
____
 S 835-022
 (4)  Do not change the lock wire adjustment setting of the adjustment link.
 NOTE: If you change the adjustment link, you will have to check the
____ inner strut door rigging (AMM 32-13-11/401).
 S 585-004
 (5)  
Lift the airplane on jacks until all the tires are clear of the ground (AMM 07-11-11/201).

 S 865-006

 (6)  
Make sure the control lever for the landing gear is in the OFF position.

 E.
Measure the Main Gear Uplock Sensor Clearance (Fig. 501)

 S 845-020
 (1)  
Prepare to retract the main landing gear.

 (a)  
Remove the ground lock(s) from the main gear
 (AMM 32-00-01/201).

 (b)  
Supply electrical power (AMM 24-22-00/201).

 (c)  
Move the FLT CONTROL and SPOILER switches to OFF if you use the airplane's hydraulic system for hydraulic power.

 NOTE: The FLT CONTROL and SPOILER switches are on the P5
____
 overhead panel.

 CAUTION: DO NOT TURN THE STEERING TILLER WHEN THE SHOCK STRUT OF
_______ THE NOSE LANDING GEAR IS FULLY EXTENDED. YOU CAN CAUSE DAMAGE TO THE CENTERING CAMS IN THE SHOCK STRUT IF YOU DO THIS.
 (d)  
Make sure the landing gear is fully extended and locked with the control lever in the DN position.

 (2)  
Retract the main landing gear:

 S 865-024
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 ALL  ú ú 01 Page 502 ú Nov 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

737-300/400/500MAINTENANCE MANUAL
UPLOCK MECHANISM SEE B
SEE A
FWD
INNER DOOR CONTROL ROD ASSEMBLY INBD FWD
SEE C
0.18 |0.02 INCH
CLEARANCE

SENSOR THE LEFT GEAR IS SHOWN THE RIGHT GEAR IS EQUIVALENT
SENSOR
COVER

A
SPACER SENSOR MOUNTING BRACKET
BOLT
UPLOCK SPRING PIVOT NUT
BOLT
SENSOR TARGET WASHER ADJUSTABLE ROD
UPLOCK MECHANISM  INNER DOOR CONTROL ROD ASSEMBLY
B C
Main Gear Uplock Sensor Adjustment
Figure 501

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 ALL  ú ú 01 Page 503 ú Mar 15/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 WARNING: KEEP PERSONS AND EQUIPMENT CLEAR OF THE FLIGHT CONTROL
_______ SURFACES, THE THRUST REVERSERS, AND THE LANDING GEAR. THESE COMPONENTS CAN MOVE SUDDENLY WHEN YOU SUPPLY HYDRAULIC POWER. THIS CAN CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
 (a)
Pressurize hydraulic system A and B (AMM 29-15-00/201).

 (b)  
Fully retract the flaps to prevent the operation of the PTU.

 (c)  
Move the two throttles to a position of 17 degrees or more.

 WARNING: MAKE SURE ALL PERSONS AND EQUIPMENT ARE CLEAR OF THE MAIN
_______ LANDING GEAR. FAST MOVEMENT OF THE MAIN LANDING GEAR CAN CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
 (d)  
Move the landing gear selector lever to the UP position.

 (e)  
Turn off hydraulic power pumps A and B.

 (f)  
Attach a DO NOT MOVE tag to the landing gear selector lever.

 S 035-025
 (3)  
Remove the pivot bolt to permit the inner shock strut door to move to the open position.

 S 225-026

 (4)  
Measure the clearance between the sensor and the target.

 NOTE: This can help you find the thickness of the spacer that is
____ necessary for the correct clearance (Fig. 501). If the sensor gap is not correct, then you will need to adjust the main gear uplock sensor.
 F. Adjust the Clearance for the Main Gear Uplock Sensor
　
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