07-11-11
 ALL  ú ú 01 Page 207 ú Jul 15/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 WARNING: YOU MUST MAKE SURE THAT ALL PERSONS ARE AWAY FROM THE
_______ LEADING EDGE SLATS. THEY CAN MOVE AUTOMATICALLY (UNLESS OTHERWISE INHIBITED) DURING MAINTENANCE WHEN THESE CONDITIONS OCCUR: EITHER HYDRUALIC SYSTEM HAS PRESSURE AND THE TRAILING EDGE FLAPS ARE IN POSITION 1, 2, OR 5, AND THE NOSE OR THE MAIN LANDING GEAR AIR/GROUND RELAYS GIVE AN IN FLIGHT CONDITION.
 CAUTION: JACKS AT PADS A AND B MUST BE RAISED BEFORE OR AT THE SAME
_______ TIME AS THE JACK AT JACK PAD C. IF YOU LIFT THE TAIL JACK BEFORE THE WING JACKS, YOU WILL FORCE THE NOSE OF THE AIRPLANE DOWN ON THE NOSE GEAR. THIS CAN PUT TOO MUCH LOAD ON THE TAIL JACK POINT. IT CAN ALSO PUT TOO MUCH LOAD ON THE TAIL JACK POINT AND THE NOSE STABILIZING JACK POINT WHEN YOU USE THE STABILIZING JACK.
 LIFT THE AIRPLANE ON JACKS IN A HORIZONTAL ATTITUDE TO PREVENT SIDE LOADS INTO THE JACK POINTS. THESE CAN CAUSE THE JACKS TO MOVE OFF THE PADS OR PUT TOO MUCH LOAD ON THE JACK POINTS AND CAUSE DAMAGE TO THE STRUCTURE.
 (b)  
Put one person at each jack to operate the jack and to make sure the jack loads stay in the approved limit.

 (c)  
Put one person at the plumb bob in the wheel well to make sure the airplane is jacked in a level attitude.

 (d)  
Put the applicable jacks at the wing jack pads A and B and the aft fuselage jack pad C.

 CAUTION: WHEN YOU LIFT OR LOWER THE JACK, DO NOT PERMIT MORE THAN
_______ ONE INCH CLEARANCE BETWEEN THE JACK RAM LOCKNUT AND THE COLLAR. TOO MUCH CLEARANCE CAN CAUSE DAMAGE TO THE AIRPLANE STRUCTURE IF THERE IS A FAILURE OF THE JACK.
 (e)  Jack the airplane until the landing gear does not touch the ground.
 NOTE: When you jack the airplane for a gear retraction test,
____ jack the airplane 3 more inches for tire arc sweep clearance. Also jack the airplane 1 more inch for more clearance.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 07-11-11
 ALL  ú ú 01 Page 208 ú Jul 15/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 (f)  If you must stabilize the airplane, lift the forward fuselage jack pad D until you hold sufficient weight to make the airplane stable.
 NOTE: You must pre-load the stabilizer jack to a maximum of
____ 5000 pounds in winds of 35 mph.
 When you lift the airplane, always lower all the jack ram locknuts at the same time you lift the jacks. Keep a clearance of one inch or less from the nut to the collar until you complete the jacking. Then tighten the nut and tighten the lockscrew.
 TASK 07-11-11-582-015
 4.  Lower the Airplane Off the Jacks________________________________
 A. References
 (1)  
AMM 12-15-31/301, Main Landing Gear Shock Strut

 (2)  
AMM 12-15-41/301, Nose Landing Gear Shock Strut

 (3)  
AMM 32-00-01/201, Ground Lock Assemblies

 B. Access
 (1)  Location Zones
 2 Lower Half of the Fuselage
 204 Nose Landing Gear
 310 Left Main Landing Gear
 410 Right Main Landing Gear

 C. Procedure
 S 582-016
 (1)  Lower the airplane off the jacks:
 CAUTION: MAKE SURE THE AREA BELOW THE AIRPLANE IS CLEAR OF ALL
_______ EQUIPMENT BEFORE YOU LOWER THE AIRPLANE. IF YOU DO NOT OBEY THESE INSTRUCTIONS, DAMAGE TO THE AIRPLANE AND EQUIPMENT CAN OCCUR.
 (a)  
Make sure the area below the airplane is clear.

 (b)  
Install the ground lockpins in all landing gear (AMM 32-00-01/201).

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 07-11-11
 ALL  ú ú 01 Page 209 ú Jul 15/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 CAUTION: WHEN YOU LIFT OR LOWER THE JACK, DO NOT PERMIT MORE THAN
_______ ONE INCH CLEARANCE BETWEEN THE JACK RAM LOCKNUT AND THE COLLAR. TOO MUCH CLEARANCE CAN CAUSE DAMAGE TO THE AIRPLANE STRUCTURE IF THERE IS A FAILURE OF THE JACK.
　
中國航空網 www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：737-300 400 500 AMM 飛機維護手冊 LIFTING AND SHORING(5)