737-300 400 500 AMM 飞机维护手册 LIFTING AND SHORING(4)

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 NOTE: When you deflate the shock struts, the height that you have
____ to lift the airplane decreases.
 S 862-019
 CAUTION: HORIZONTAL LOADS DUE TO SCUFFING OR SLIDING WILL BE TRANSMITTED
_______ THROUGH THE STRUCTURE TO THE JACK PADS. THIS CAN CAUSE THE JACKS TO FALL OVER.
 IF YOU LIFT THE AIRPLANE TOO HIGH, THE LANDING GEAR SAFETY SWITCH CAN CLOSE. IF THIS OCCURS, IT CAN CAUSE THE HEATERS TO BURN OUT.
 (6)  If you lift the airplane high enough to cause the LANDING GEAR SAFETY SWITCH to close, open the following circuit breakers:
 (a)  DRAIN MAST - AIR circuit breaker on the P18-3 circuit breaker panel.
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737-300/400/500MAINTENANCE MANUAL
 (b)  
C1085 Hydraulic system PTU/LG BYP valve cont 2.

 (c)  
C1081 Hydraulic system PTU/LG BYP valve cont 1.

 (d)  
C1068 Autoslat NO. 1 DC.

 (e)  
C1070 Autoslat NO. 2 DC.

 (f)  
C362 FLT CONT S/O valves standby rudder.

 S 862-007
 (7)  When you jack the airplane for the gear retraction test or when the shock struts are deflated and locked, the main gear shock strut will cant to trail 1.85 degrees aft of the vertical axis.
 NOTE: When you lift the airplane, normal oleo extension on
____ 88.15-degree angle causes aft wheel movement on the ground a maximum of 0.55 inch. If the wheels are chocked or parking brakes are set when you lift or lower the airplane, wheel movement will cause the chocks to slide or the tires to scuff on the ground.
 TASK 07-11-11-582-020
 3.  Lift the Airplane with the Jacks________________________________
 A. Access
 (1)  Location Zones
 2 Lower Half of the Fuselage

 B. Procedure
 S 842-021
 (1)  
Prepare to lift the airplane on the jacks (Refer to the first task in this procedure).

 S 092-009

 (2)  
Remove the recess fillers from the jack pad adapter and fasteners at positions A and B.

 NOTE: The aft body jack adapter F80001 is a threaded rod with a
____ machined semiball on one end. You put the F80001 adapter in the jack pad fitting that is a part of the airplane structure.
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737-300/400/500MAINTENANCE MANUAL
 S 492-010
 CAUTION:_______ WHEN YOU INSTALL THE JACK PAD ADAPTERS, USE THE ATTACH BOLTS
 SHOWN IN FIG. 202.  IF YOU DO NOT USE THE CORRECT BOLTS, YOU
 CAN CAUSE STRUCTURAL DAMAGE TO THE AIRPLANE.
 DURING WINDY CONDITIONS, YOU MUST USE THE STABLIZING JACK.  YOU
 MUST PUT A PRE-LOAD ON THE STABILIZING JACK TO A MAXIMUM OF

 5000 POUNDS AT WINDS OF 35 MPH.
 (3)  Put the primary jacks directly below the jack pads and make sure all jack pads have an even distribution of weight.
 NOTE: Jacks must have pressure gages and a conversion table to give
____ the pounds of load at each jack point.
 S 862-011
 (4)  Put the caster wheels in an aligned position.
 NOTE: With the caster wheels aligned, they can follow each other
____ when the jack turns clockwise (counterclockwise, where applicable).
 S 092-012
 (5)  
Remove the wheel chocks.

 S 862-013

 (6)  
Release the parking brake.

 S 582-014

 (7)  
Lift the airplane on the jacks:

 (a)  Use a plumb bob and a leveling scale in the right wheel well.
 NOTE: Use this to find the lateral level and longitudinal
____ attitude while you lift the airplane.
 The plumb bob procedure is sufficiently accurate for general jacking, weighing, and gear retraction only. If you must use a more accurate procedure to make the airplane level, refer to Chapter 8, Leveling.
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