737系列液压系统勤务讲义

空调系统,主要知识点,1、,2、,3、,*,*,深航维修工程部教案,课程名称：起落架镜面清洁,课程编号：NB2005/08,培训课时：0.5课时,TRAINING PURPOSE ONLY,9/14/2024,1,课程简单介绍,培训内容：737系列飞机起落架镜面清洁,参考资料：737300/700/800/900 AMM维护手册,32-00-10 LANDING GEAR INNER CYLINDER,CHROME CLEANING/PAINTING,培训对象：维修工程部新进维修人员和外站人员,教学设施：电脑、投影仪,教学方式：课堂教学,9/14/2024,2,内容介绍,一、油箱、油品介绍,二、737液压系统加油程序,三、737液压系统放油程序,四、液压系统和油箱增压,9/14/2024,3,THIS PAGE INTENTIONALLY LEFT BLANK,9/14/2024,4,油箱、油品介绍,Purpose,The hydraulic reservoirs supply hydraulic fluid under,pressure to the hydraulic pumps. The reservoirs also,get return fluid from the airplane systems that use,hydraulic power.,作用：,给液压系统提供液压油，回油。,1.RESERVOIR,液压油箱,9/14/2024,5,Location,The hydraulic system A reservoir,is in the center of the main,wheel well on the forward,Bulkhead(壁板). The hydraulic,system B reservoir is on the,right forward bulkhead of the,main wheel well.,位置：,A系统位于主轮舱前壁板，B系统位于,主轮舱前壁板右侧,9/14/2024,6,Physical Description,1加仑4夸脱,1夸脱0.95升,9/14/2024,7,9/14/2024,8,D00153 Fluid, Hydraulic,Fire Resistant BMS3-11, TYPE IV,SKYDROL,LD-4,性状：淡紫色、重腐蚀性液体,2 the Hydraulic Fluid 液压油,9/14/2024,9,THIS PAGE INTENTIONALLY LEFT BLANK,9/14/2024,10,737系列飞机液压系统加油程序,REF. 737 AMM 121200,Hydraulic Reservoir Servicing,A. General,(1) The equipment that is necessary to fill the hydraulic fluid is on the,forward bulkhead of the right wheel well.,The equipment includes a,reservoir,manual fill pump,a,pressure fill,connection,a reservoir fill,filter module,for the hydraulic fluid, and a reservoir fill,selector valve,.,9/14/2024,11,manual fill pump,selector valve,9/14/2024,12,(2) There is a,fluid quantity,indicator,on the system A and B,reservoirs. The standby,reservoir is filled through the,B system reservoir. When the,fluid quantity indicator for,system B shows full, the system,B reservoir and the standby,reservoir are full.,9/14/2024,13,(3) The fluid chilling at high altitude and the large ambient temperature changes between departure and arrival locations can result in a decrease in fluid levels. If you service the airplane high at the cold location before the airplane is sent back to the warm location, it is possible that you will cause an overfill of the reservoir and fluid can overflow from the drain line.,9/14/2024,14,B. References,(1) AMM TASK 29-11-00-860-805 p201, Hydraulic System A or B,Power Removal,(2) AMM TASK 29-11-01-860-801 p201, Hydraulic Reservoirs,Pressurization,(3) AMM TASK 29-11-01-860-802 p201, Hydraulic Reservoirs,Depressurization,(4) AMM TASK 29-21-00-000-802 p201, Standby Hydraulic System,Power Removal,9/14/2024,15,C. Equipment,(1) 1104 Cart - Servicing, MIL-H-5606 or Oil, 5 Gal, 5 Micron,Filter McDermott Associates, Inc. (Vendor Code 30188) 11424,Denton Drive, P.O. Box 29617, Dallas TX 75229-0617,(2) Container - Hydraulic Fluid Resistant, 5 Gallon (19 Liters),(commercially available),(3) (50 gal) Container - Hydraulic Fluid Resistant, 50 Gallon,(190Liters),9/14/2024,16,D. Consumable Materials,D00153 Fluid, Hydraulic, Erosion Arresting, Fire Resistant,-BMS3-11, TYPE IV,E. Access,Location Zones,134 Main Landing Gear Wheel,Well,Body Station 663.75 to,BodyStation 727.00 - Right,9/14/2024,17,F. Hydraulic Reservoir Servicing,(1) Make sure the flaps and the leading edge are up.,(2) Remove power from hydraulic systems A, B and the standby,systems:,(a) Do this task: Hydraulic System A or B Power Removal,(AMM TASK 29-11-00-860-805 p201).,(b) Do this task: Standby Hydraulic System Power Removal,(AMM TASK 29-21-00-000-802 p201).,9/14/2024,18,(3) Before you fill the system B reservoir, make sure the brake accumulator has a minimum of 2800 psig (19305 KPa) of pressure in it (with the hydraulic pumps off).,(4) If you use the hand pump, put the end of the suction hose in the fluid resistant container (5 gal)(hydraulic fluid resistant container).,9/14/2024,19,CAUTION,: DO NOT SUPPLY HYDRAULIC FLUID AT MORE THAN 75 PSIG,(517 KPA) TO THE PRESSURE FILL CONNECTION. A PRESSURE,OF MORE THAN 75 PSIG (517 KPA) CAN CAUSE DAMAGE TO THE,HYDRAULIC SYSTEM.,9/14/2024,20,(5) If you use a cart 1104, connect the hose from cart 1104,to the pressure fill connection.,(6) Turn the reservoir fill selector valve to the reservoir to,be filled.,NOTE,: PORT A fills reservoir A, and PORT B fills the standby,reservoir and reservoir B.,9/14/2024,21,WARNING,: DO NOT GET HYDRAULIC FLUID ON YOU. HYDRAULIC FLUID,BMS 3-11 CAN CAUSE INJURY TO PERSONS. IF YOU GET THE,HYDRAULIC FLUID ON YOUR SKIN, FLUSH YOUR SKIN WITH,WATER. IF YOU GET THE HYDRAULIC FLUID IN YOUR EYES,FLUSH YOUR EYES WITH WATER AND GET MEDICAL AID. IF YOU,EAT OR DRINK THE HYDRAULIC FLUID, GET MEDICAL AID.,CAUTION,: USE CLEAN HYDRAULIC FLUID AND CLEAN EQUIPMENT WHEN YOU,FILL THE HYDRAULIC RESERVOIRS. DIRT CAN CAUSE DAMAGE,TO THE HYDRAULIC SYSTEM.,9/14/2024,22,(7) Add fluid, BMS3-11, TYPE IV until the indicator on the,reservoir shows FULL.,NOTE,: For hydraulic system A reservoir, the quantity for the,FULL mark is approximately 5.7 gallons (21.6 liters). For,hydraulic system B and standby reservoirs, the quantity,for the FULL mark is 8.2 gallons (31.1 liters). The,reservoir fill connection permits fluid servicing from,the ground servicing system to the A system and system B,reservoirs.,NOTE,: All currently qualified BMS 3-11, Type IV hydraulic fluids,are interchangeable and intermixable in any proportion.,9/14/2024,23,(8) Put the reservoir fill,selector valve in the,CLOSED position.,9/14/2024,24,(9) Put the handle and the,suction hose for the hand,pump in their usual,positions, or disconnect,the cart, 1104.,9/14/2024,25,(10)Look at the gages,for the hydraulic,fluid quantity,that are in the,flight compartment.,Make sure the gages show the,hydraulic fluid quantity are above refill (greater than 76%).,9/14/2024,26,CBT演示,737 MCBT HYDRAULIC SERVICING,9/14/2024,27,THIS PAGE INTENTIONALLY LEFT BLANK,9/14/2024,28,G. Lower the Hydraulic Reservoir Fluid Level,(1) Release pressure from the applicable hydraulic reservoir.,To release it, do this task: Hydraulic Reservoirs,Depressurization,(AMM TASK 29-11-01-860-802 p201).,Hydraulic Reservoir Servicing,9/14/2024,29,WARNING,: DO NOT GET HYDRAULIC FLUID ON YOU.HYDRAULIC FLUID,BMS 3-11 CAN CAUSE INJURY TO PERSONS. IF YOU GET,THE HYDRAULIC FLUID ON YOUR SKIN, FLUSH YOUR SKIN,WITH ATER. IF YOU GET THE HYDRAULIC FLUID IN YOUR,EYES, FLUSH YOUR EYES WITH WATER AND GET MEDICAL,AID. IF YOU EAT OR DRINK THE HYDRAULIC FLUID, GET,MEDICAL AID.,9/14/2024,30,(2) Install a drain hose:,(a) Put one end of a drain hose (1/2 I.D.) on the outlet of,the reservoir drain valve.,(b) Put the opposite end of the drain hose into the,container, (50gal) for the hydraulic fluid.,(3) If you must lower fluid level because it is too high,do these steps:,(a) Monitor the reservoir quantity gages while you drain,fluid from the reservoir.,(b) Open the reservoir drain valve to drain the hydraulic,fluid into the container, (50 gal).,(c) Close the reservoir drain valve when the reservoir,quantity gage is above refill.,9/14/2024,31,(4) Remove the drain hose from the reservoir drain valve.,(5) Install a lockwire on the handle of the reservoir drain,valve.,(6) Pressurize the hydraulic reservoirs. To pressurize them,do this,task: Hydraulic Reservoirs Pressurization,(AMM TASK 29-11-01-860-801 p201).,9/14/2024,32,CBT演示,737 MCBT HYDRAULIC SERVICING,9/14/2024,33,THIS PAGE INTENTIONALLY LEFT BLANK,9/14/2024,34,液压系统和油箱增压,REF.,AMM TASK 29-11-01 P201,TASK: Hydraulic Reservoirs Pressurization,9/14/2024,35,THIS PAGE INTENTIONALLY LEFT BLANK,9/14/2024,36,737系列飞机液压系统加油程序,(小结),1、液压油 BMS 3-11 LD-4,腐蚀性强，注意保护,2、油量指示 76时 “refill”,航后标准 94737300,92737NG,9/14/2024,37,737系列飞机液压系统加油程序,(小结),3、加油前注意：, 扰流板、襟翼、前缘装置在收上位,起落架放下锁好,反推装置收上锁好,刹车储压器压力至少2800PSI,4、注意低温地区加油不宜过满，防止溢流。,9/14/2024,38,5、工作结束后注意恢复,加油选择活门,压力加油口,手摇泵手柄,手摇泵加油管,工具清点（遵守三清点制度）,9/14/2024,39,