DEMAG行车维修保养培训

1、Maintenance and inspection training for DEMAG grab cranes德马格抓斗起重机维护和检查培训,DEMAG GRAB CRANE 德马格抓斗起重机,Crane runway大车轨道,Visual check of crane runway girders 视觉检查大车轨道 Check rails and rail attachment检查轨道与轨道附件 Visual check of end stops视觉检查轨道终端停止器 Check position measurement system检查位置测量系统,Crane runway大车轨道,V

2、isual check of crane runway girders 视觉检查大车轨道 Check rails and rail attachment检查轨道与轨道附件 Visual check of end stops视觉检查轨道终端停止器 Check position measurement system检查位置测量系统,Crane runway大车轨道 once a year 一年一次Visual check of crane runway girders 视觉检查大车轨道,Damage损坏 Cracks缺陷,Crane runway大车轨道,Visual check of crane

3、 runway girders 视觉检查大车轨道 Check rails and rail attachment检查轨道与轨道附件 Visual check of end stops视觉检查轨道终端停止器 Check position measurement system检查位置测量系统,Crane runway大车轨道 once a year一年一次 Check rails and rail attachment检查轨道和轨道附件,Damage损坏 Cracks缺陷 Tightening torques紧固力矩,Damage损坏 Cracks缺陷 Tightening torques 紧固力

4、矩,Crane runway大车轨道 once a year一年一次 Check rails and rail attachment检查轨道和轨道附件,Crane runway大车轨道,Visual check of crane runway girders 视觉检查大车轨道 Check rails and rail attachment检查轨道与轨道附件 Visual check of end stops视觉检查轨道终端停止器 Check position measurement system检查位置测量系统,Crane runway大车轨道 once a year一年一次 Visual c

5、heck of end stops视觉检查终端停止器,Damage损坏 Cracks缺陷 If welded 如果是焊接,Damage损坏 Tight fit是否紧固 If screwed 如果是螺栓固定,Crane runway大车轨道 once a year一年一次 Visual check of end stops视觉检查终端停止器,Crane runway大车轨道,Visual check of crane runway girders 视觉检查大车轨道 Check rails and rail attachment检查轨道与轨道附件 Visual check of end stops

6、视觉检查轨道终端停止器 Check position measurement system检查位置测量系统,Crane runway大车轨道 once a year一年一次 Check position measurement system检查位置测量系统,Damage损坏 Function 功能 Wear磨损,Fixing point固定点,Crane runway大车轨道 once a year一年一次 Check position measurement system检查位置测量系统,And brackets 和托架,Crane runway大车轨道 once a year一年一次 Ch

7、eck position measurement system检查位置测量系统,Crane大车 Hydraulic buffers 液压缓冲器,Visual inspection of buffers视觉检查液压缓冲器 Buffer maintenance缓冲器维护 Buffer function check缓冲器功能检查,Crane大车 Hydraulic buffers 液压缓冲器,Visual inspection of buffers视觉检查液压缓冲器 Buffer maintenance缓冲器维护 Buffer function check缓冲器功能检查,Hydraulic buff

8、ers液压缓冲器 every 3 month每季度 Visual inspection of buffers视觉检查液压缓冲器,Damage损坏 Tight fit 紧固 Leakage漏油,Crane大车 Hydraulic buffers 液压缓冲器,Visual inspection of buffers视觉检查液压缓冲器 Buffer maintenance缓冲器维护 Buffer function check缓冲器功能检查,Hydraulic buffers液压缓冲器 every 3 month每季度 Buffer maintenance液压缓冲器维护,Clean and greas

9、e piston rod清洁并加脂润滑活塞杆,Crane大车 Hydraulic buffers 液压缓冲器,Visual inspection of buffers视觉检查液压缓冲器 Buffer maintenance缓冲器维护 Buffer function check缓冲器功能检查,Hydraulic buffers 液压缓冲器 every 3 month每季度 Buffer function check液压缓冲器功能检查,Check return motion检查回座动作,Crane Bridge大车桥,Visual inspection of crane girder视觉检查大车梁

10、 Visual inspection of buffer/end stops (crosstravel)视觉检查缓冲器和终端停止器（小车方向） Main girder/end carriage bolted connection主轨道和端头车架螺栓连接,Crane Bridge大车桥,Visual inspection of crane girder视觉检查大车梁 Visual inspection of buffer/end stops (crosstravel)视觉检查缓冲器（终端停止器）（小车方向） Main girder/end carriage bolted connection主梁

11、和端头车架螺栓连接,Crane Bridge 大车桥 every 3 month每季度 Visual inspection of crane girder视觉检查大车梁,Mechanical damage机械损坏 Weld seams for cracks焊缝是否有缺陷 Anti-corrosion protection防腐保护,Crane Bridge大车桥,Visual inspection of crane girder视觉检查大车梁 Visual inspection of buffer/end stops (crosstravel)视觉检查缓冲器和终端停止器（小车方向） Main g

12、irder/end carriage bolted connection主梁和端头车架螺栓连接,Crane Bridge大车桥 every 3 month每季度 Visual inspection of buffer/end stops (crosstravel)视觉检查缓冲器（终端停止器）（小车方向）,Damage损坏 Tight fit (if screwed)紧固程度（如果是螺栓固定） Cracks (if welded)缺陷（如果是焊接）,Crane Bridge大车桥,Visual inspection of crane girder视觉检查大车梁 Visual inspection

13、 of buffer/end stops (crosstravel)视觉检查缓冲器和终端停止器（小车方向） Main girder/end carriage bolted connection主梁和端头车架螺栓连接,Crane Bridge大车桥 every 3 month每季度 Main girder/end carriage bolted connection主梁和端头车架螺栓连接,Tightening torques 紧固力矩,Tightening torques 紧固力矩值,Crane Bridge大车桥 every 3 month每季度 Main girder/end carriag

14、e bolted connection主梁和端头车架螺栓连接,Longtravel Unit大车行进装置Wheel set大车轮组,Wheel bearing lubrication大车轮轴承润滑 Wear of travel wheel treads and flanges大车轮面和法兰的磨损 Visual inspection of bearing seals视觉检查轴承密封 Guide rollers导轮,Wheel bearing lubrication大车轮轴承润滑 Wear of travel wheel treads and flanges大车轮面和法兰的磨损 Visual in

15、spection of bearing seals视觉检查轴承密封 Guide rollers导轮,Longtravel Unit大车行进装置Wheel set大车轮组,Wheel set轮组 every year每年 Wheel bearing lubrication大车轮轴承润滑,Lubricate with - Staburags NBU 12 K使用Staburags NBU 12 K润滑,Wheel bearing lubrication大车轮轴承润滑 Wear of travel wheel treads and flanges大车轮面和法兰的磨损 Visual inspectio

16、n of bearing seals视觉检查轴承密封 Guide rollers导轮,Longtravel Unit大车行进装置Wheel set大车轮组,Wheel set大车轮组 every 3 month每季度 Wear of travel wheel treads and flanges行进车轮面和法兰磨损,Residual flange indicator剩余法兰指示器,Wheel bearing lubrication大车轮轴承润滑 Wear of travel wheel treads and flanges大车轮面和法兰的磨损 Visual inspection of bear

17、ing seals视觉检查轴承密封 Guide rollers导轮,Longtravel Unit大车行进装置Wheel set大车轮组,Wheel set轮组 every 3 month每季度 Visual inspection of bearing seals视觉检查轴承密封,Damage (both sides)损坏（两面）,Wheel bearing lubrication大车轮轴承润滑 Wear of travel wheel treads and flanges大车轮面和法兰的磨损 Visual inspection of bearing seals视觉检查轴承密封 Guide r

18、ollers导轮,Longtravel Unit大车行进装置Wheel set大车轮组,Damage损坏 Tight fit 紧固 Wear磨损,Wheel set 轮组 every 6 month每半年 Guide rollers导向轮,Wheel set 轮组 every 6 month每半年 Guide rollers导向轮,Damage损坏 Tight fit 紧固 Wear磨损,Longtravel Unit / Travel drive 大车行进单位和行进驱动,Brake function check刹车功能检查 Brake maintenance刹车维护 Motor电机 Chan

19、ge gearbox oil换齿轮箱油 Torque bracket力矩托架,Longtravel Unit / Travel drive 大车行进单位和行进驱动,Brake function check刹车功能检查 Brake maintenance刹车维护 Motor电机 Change gearbox oil换齿轮箱油 Torque bracket力矩托架,Travel drive行进驱动 every day每天 Brake function check抱闸功能检查,Check the brake function during the operation运行期间检查抱闸功能,Brake

20、function check刹车功能检查 Brake maintenance刹车维护 Motor电机 Change gearbox oil换齿轮箱油 Torque bracket力矩托架,Longtravel Unit / Travel drive 大车行进单位和行进驱动,Travel drive行进驱动 every 6 month每半年 Brake maintenance抱闸维护,Check the air gap between motor and brake检查电机和抱闸之间的空气间隙 Clean the brake清洁抱闸,Longtravel Unit / Travel drive

21、大车行进单位和行进驱动,Brake function check刹车功能检查 Brake maintenance刹车维护 Motor电机 Change gearbox oil换齿轮箱油 Torque bracket力矩托架,Visual inspection视觉检查 Clean cooling air channels清洁冷却空气通道,Travel drive行进驱动 every 6 month每半年 Motor电机,Travel drive行进驱动 every 6 month每半年 Motor电机,Visual inspection视觉检查 Clean cooling air channel

22、s清洁冷却空气通道,Longtravel Unit / Travel drive 大车行进单位和行进驱动,Brake function check刹车功能检查 Brake maintenance刹车维护 Motor电机 Change gearbox oil换齿轮箱油 Torque bracket力矩托架,Travel drive行进驱动 min.10000h max.4years 至少10000小时最多4年Change gearbox oil更换齿轮油,CLP 220 DIN 51502 牌号CLP 220 德国标准51502,Longtravel Unit / Travel drive 大车

23、行进装置和行进驱动,Brake function check刹车功能检查 Brake maintenance刹车维护 Motor电机 Change gearbox oil换齿轮箱油 Torque bracket力矩托架,Travel drive行进驱动 every 3 month 每季度Torque bracket力矩托架,Tight fit紧固,Travel drive行进驱动 every 3 month每季度 Torque bracket力矩托架,Check tightening torque检查锁紧力矩,Longtravel Unit/ Long travel position dete

24、ction大车行进单位大车行进位置检测,Limit switch function check限位开关功能检查 Maintenance of measuring trolley with limit switch and absolute encoder带限位开关和绝对位置解码器的测量台车维护 Measuring chain maintenance测量链条维护,Longtravel Unit/ Long travel position detection大车行进单位大车行进位置检测,Limit switch function check限位开关功能检查 Maintenance of measu

25、ring trolley with limit switch and absolute encoder带限位开关和绝对位置解码器的测量台车维护 Measuring chain maintenance测量链条维护,Longtravel position detection大车位置检测every day每天Limit switch function check限位开关功能检查,Check all limit switches 检查所有限位开关 Hardware硬件 Prelimit预限位 Limit限位 Safety areas安全区 Software软件 Limit限位 Safety areas

26、安全区,Longtravel Unit/ Long travel position detection大车行进单位大车行进位置检测,Limit switch function check限位开关功能检查 Maintenance of measuring trolley with limit switch and absolute encoder带限位开关和绝对位置解码器的测量台车维护 Measuring chain maintenance测量链条维护,Longtravel position detection大车位置检测weekly每周 Maintenance of measuring tro

27、lley with limit switch and absolute encoder带限位开关和绝对位置解码器的测量台车维护,Damage损坏 Tight fit 紧固程度 Dirt accumulation积灰 Wear磨损,Longtravel Unit/ Long travel position detection大车行进单位大车行进位置检测,Limit switch function check限位开关功能检查 Maintenance of measuring trolley with limit switch and absolute encoder带限位开关和绝对位置解码器的测量

28、台车维护 Measuring chain maintenance测量链条维护,Longtravel position detection大车位置检测weekly每周 Measuring chain maintenance测量链条维护,Damage损坏 Tight fit of the chain support紧固链条支撑件 Dirt accumulation 脏污积累 Wear磨损 End anchorage 端头锚固,Longtravel Unit / runway sweeper大车行进装置扫轨器,Visual inspection of runway sweeper视觉检查扫轨器 Ad

29、just brush调整刷子,Longtravel Unit / runway sweeper大车行进装置扫轨器,Visual inspection of runway sweeper视觉检查扫轨器 Adjust brush调整刷子,Runway sweeper扫轨器 weekly每周 Visual inspection of runway sweeper视觉检查扫轨器,Visual check for dirt, rust and function视觉检查脏污，铁锈和功能,Longtravel Unit / runway sweeper大车行进装置扫轨器,Visual inspection

30、of runway sweeper视觉检查扫轨器 Adjust brush调整刷子,Runway sweeper 扫轨器 as required视需要Adjust brush调整刷子,Min. bristle length 15mm最小刷毛长度是15mm,Crosstravel Unit / Wheel set 小车行进装置轮组,Wheel bearing lubrication车轮轴承润滑 Wear of travel wheel treads and flanges小车轮面和法兰磨损 Visual inspection of bearing seals视觉检查轴承密封,Crosstrave

31、l Unit / Wheel set 小车行进装置轮组,Wheel bearing lubrication车轮轴承润滑 Wear of travel wheel treads and flanges小车轮面和法兰磨损 Visual inspection of bearing seals视觉检查轴承密封,Wheel set轮组 every year每年 Wheel bearing lubrication轮轴承润滑,Lubricate with - Staburags NBU 12 K用NBU12K润滑,Crosstravel Unit / Wheel set 小车行进装置轮组,Wheel bea

32、ring lubrication车轮轴承润滑 Wear of travel wheel treads and flanges小车轮面和法兰磨损 Visual inspection of bearing seals视觉检查轴承密封,Wheel set轮组 every 3 month每季度 Wear of travel wheel treads and flanges行进轮组面和法兰磨损,Residual flange indicator剩余法兰指示器,Crosstravel Unit / Wheel set 小车行进装置轮组,Wheel bearing lubrication车轮轴承润滑 Wea

33、r of travel wheel treads and flanges小车轮面和法兰磨损 Visual inspection of bearing seals视觉检查轴承密封,Wheel set轮组 every 3 month每季度 Visual inspection of bearing seals视觉检查轴承密封,Damage (both sides)损坏（两面）,Crosstravel Unit / Travel drives小车行进装置行进驱动,Brake function check抱闸功能检查 Brake maintenance抱闸维护 Motor电机 Change gearbo

34、x oil更换齿轮箱油 Torque bracket托架扭矩,Crosstravel Unit / Travel drives小车行进装置行进驱动,Brake function check抱闸功能检查 Brake maintenance抱闸维护 Motor电机 Change gearbox oil更换齿轮箱油 Torque bracket托架扭矩,Travel drive小车行进驱动 every day每天 Brake function check抱闸功能检查,Check the brake function during the operation运行期间检查抱闸功能,Brake funct

35、ion check抱闸功能检查 Brake maintenance抱闸维护 Motor电机 Change gearbox oil更换齿轮箱油 Torque bracket托架扭矩,Crosstravel Unit / Travel drives小车行进装置行进驱动,Travel drive小车行进驱动 every 6 month每半年 Brake maintenance抱闸维护,Check the air gap between motor and brake检查电机和抱闸之间的空气间隙 Clean the brake清洁抱闸,Brake function check抱闸功能检查 Brake

36、maintenance抱闸维护 Motor电机 Change gearbox oil更换齿轮箱油 Torque bracket托架扭矩,Crosstravel Unit / Travel drives小车行进装置行进驱动,Visual inspection视觉检查 Clean cooling air channels清洁冷却空气通道,Travel drive小车行进驱动 every 6 month每半年 Motor电机,Travel drive小车行进驱动 every 6 month每半年 Motor电机,Visual inspection视觉检查 Clean cooling air chan

37、nels清洁冷却空气通道,Brake function check抱闸功能检查 Brake maintenance抱闸维护 Motor电机 Change gearbox oil更换齿轮箱油 Torque bracket托架扭矩,Crosstravel Unit / Travel drives小车行进装置行进驱动,Travel drive 小车行进驱动 min.10000h max.4years 最小10000小时最大4年Change gearbox oil更换齿轮油,CLP 220 DIN 51502,Brake function check抱闸功能检查 Brake maintenance抱闸

38、维护 Motor电机 Change gearbox oil更换齿轮箱油 Torque bracket托架扭矩,Crosstravel Unit / Travel drives小车行进装置行进驱动,Tight fit紧固 Check tightening torque 检查锁紧力矩,Travel drive行进驱动 every 3 month每季度 Torque bracket扭矩支架,Travel drive行进驱动 every 3 month每季度 Torque bracket扭矩支架,Tight fit紧固 Check tightening torque 检查锁紧力矩,Visual ins

39、pection of buffers视觉检查缓冲器,Crosstravel Unit / Buffers 小车行进装置缓冲器,Crosstravel Unit / Buffers 小车行进装置缓冲器,Visual inspection of buffers视觉检查缓冲器,Damage损坏 Tight fit紧固,Buffers缓冲器 every 3 month每季度 Visual inspection of buffers视觉检查缓冲器,Buffers缓冲器 every 3 month每季度 Visual inspection of buffers视觉检查缓冲器,Damage 损坏 Tight

40、 fit紧固,Crosstravel Unit / rail sweeper小车行进装置扫轨器,Visual inspection of runway sweeper视觉检查扫轨器 Adjust brush调整刷子,Crosstravel Unit / rail sweeper小车行进装置扫轨器,Visual inspection of runway sweeper视觉检查扫轨器 Adjust brush调整刷子,Runway sweeper扫轨器 weekly每周 Visual inspection of runway sweeper视觉检查扫轨器,Visual check for dirt

41、, rust and function视觉检查脏污，铁锈和功能,Crosstravel Unit / rail sweeper小车行进装置扫轨器,Visual inspection of runway sweeper视觉检查扫轨器 Adjust brush调整刷子,Runway sweeper 扫轨器 as required视需要Adjust brush调整刷子,Min. bristle length 15mm最小刷毛长度是15mm,Crosstravel Unit / position detection小车行进装置位置检测,Limit switch function check限位开关功能

42、检查 Maintenance of measuring trolley with limit switch and absolute encoder带限位开关和绝对位置解码器的测量台车维护 Measuring chain maintenance测量链条维护,Crosstravel Unit / position detection小车行进装置位置检测,Limit switch function check限位开关功能检查 Maintenance of measuring trolley with limit switch and absolute encoder带限位开关和绝对位置解码器的测量

43、台车维护 Measuring chain maintenance测量链条维护,Crosstravel position detection小车位置检测every day每天Limit switch function check限位开关功能检查,Check all limit switches 检查所有限位开关 Hardware硬件 Prelimit预限位 Limit限位 Safety areas安全区 Software软件 Limit限位 Safety areas安全区,Limit switch function check限位开关功能检查 Maintenance of measuring t

44、rolley with limit switch and absolute encoder带限位开关和绝对位置解码器的测量台车维护 Measuring chain maintenance测量链条维护,Crosstravel Unit / position detection小车行进装置位置检测,Crosstravel position detection 小车位置检测weekly每周Maintenance of measuring trolley with limit switch and absolute encoder带限位开关和绝对位置解码器的测量台车维护,Damage损坏 Tight

45、fit 紧固 Dirt accumulation积灰 Wear磨损,Limit switch function check限位开关功能检查 Maintenance of measuring trolley with limit switch and absolute encoder带限位开关和绝对位置解码器的测量台车维护 Measuring chain maintenance测量链条维护,Crosstravel Unit / position detection小车行进装置位置检测,Crosstravel position detection小车位置检测 weekly每周Measuring c

46、hain maintenance测量链条维护,Damage损坏 Tight fit of the chain support链条支撑紧固 Dirt accumulation积灰 Wear磨损 End anchorage 端部锚固,Crosstravel Unit / frame and travel units 小车行进装置框架和移动装置,Visual inspection视觉检查 Travel rail / travel wheel visual inspection行进轨道/车轮视觉检查,Crosstravel Unit / frame and travel units 小车行进装置框架和

47、移动装置,Visual inspection视觉检查 Travel rail / travel wheel visual inspection行进轨道/车轮视觉检查,Frame and travel units框架和移动装置every 3 month每季度Visual inspection视觉检查,Mechanical damage机械损坏 Weld seams for cracks焊缝缺陷 Anti-corrosion protection防腐保护,Crosstravel Unit / frame and travel units 小车行进装置框架和移动装置,Visual inspectio

48、n视觉检查 Travel rail / travel wheel visual inspection行进轨道/车轮视觉检查,Frame and travel units框架和移动装置 every 3 month每季度Travel rail / travel wheel visual inspection移动轨道移动轮视觉检查,Wear磨损 Weld seams for cracks焊缝检查缺陷 Flange deformation 法兰变形 Residual flange indicator残余法兰指示器,Hoist Unit / Hoist motor 起升装置起升马达,Checking f

49、an and encoder检查风扇和编码器 Checking grease filling of bearings检查轴承油脂加注情况 Clean cooling air channels清洁冷却空气通道,Hoist Unit / Hoist motor 起升装置起升马达,Checking fan and encoder检查风扇和编码器 Checking grease filling of bearings检查轴承油脂加注情况 Clean cooling air channels清洁冷却空气通道,Hoist motor 起升电机 every 3 month每季度 Checking fan a

50、nd encoder检查风扇和编码器,Tight fit紧固,Checking fan and encoder检查风扇和编码器 Checking grease filling of bearings检查轴承油脂加注情况 Clean cooling air channels清洁冷却空气通道,Hoist Unit / Hoist motor 起升装置起升马达,Hoist motor起升马达Checking grease filling of bearings检查轴承加脂情况,Checking fan and encoder检查风扇和编码器 Checking grease filling of be

51、arings检查轴承油脂加注情况 Clean cooling air channels清洁冷却空气通道,Hoist Unit / Hoist motor 起升装置起升马达,Hoist motor 起升马达Clean cooling air channels清洁冷却空气通道,Hoist Unit / Hoist gearbox 起升装置起升齿轮箱,Check oil level检查油位 Check for leakage检查泄漏 Check oil for water content检查油中水分 Oil change换油 Clean清洁 Check screws for tight fit检查螺

52、栓紧固程度,Hoist Unit / Hoist gearbox 起升装置起升齿轮箱,Check oil level检查油位 Check for leakage检查泄漏 Check oil for water content检查油中水分 Oil change换油 Clean清洁 Check screws for tight fit检查螺栓紧固程度,Hoist gearbox起升齿轮箱 monthly每月 Check oil level检查油位,Check the oil level with the dipstick Nr.1用油标尺（NO.1）检查油位 If necessary refill

53、 the oil. Do not mix the oil types如果需要则加油。不要混用油,Check oil level检查油位 Check for leakage检查泄漏 Check oil for water content检查油中水分 Oil change换油 Clean清洁 Check screws for tight fit检查螺栓紧固程度,Hoist Unit / Hoist gearbox 起升装置起升齿轮箱,Hoist gearbox起升齿轮箱 monthly每月 Check for leakage检查泄漏情况,Check seals, seal joints and r

54、adial shaft seal rings. If necessary replace 检查密封，密封连接件和径向轴密封环，如果需要则更换 For an overview check the spare part drawing in the operation instr. 为了解总貌检查操作手册中的备件图 Remove any oil spillage immediately with an oil-binding agent. 立即用油吸附剂去除任何溢油,Check oil level检查油位 Check for leakage检查泄漏 Check oil for water cont

55、ent检查油中水分 Oil change换油 Clean清洁 Check screws for tight fit检查螺栓紧固程度,Hoist Unit / Hoist gearbox 起升装置起升齿轮箱,Hoist gearbox 起升齿轮箱 after 400h once a year at least400小时后至少每年一次Check oil for water content检查油中水分,Open the oil inlet Nr.1 to check the oil 打开进油口（NO.1）以检查油 For detailed information on testing for wat

56、er-content apply to the lubricant manufacturer测试油中水分的详细信息向润滑油厂家咨询,Check oil level检查油位 Check for leakage检查泄漏 Check oil for water content检查油中水分 Oil change换油 Clean清洁 Check screws for tight fit检查螺栓紧固程度,Hoist Unit / Hoist gearbox 起升装置起升齿轮箱,Hoist gearbox起升齿轮箱 first after 400h further every 2 years (5000h)

57、*第一次400小时后以后每两年（5000小时）* Oil change换油,Table of oil-types are shown in the Operation Instr. 214 446 44 油型号表显示在操作手册214 446 44 Fill the gearbox with fresh oil, using a filter (max. mesh 25 m) 通过过滤器（最大网孔距离25 m ）给齿轮箱加新油 * Data apply to mineral oil. When using synthetic oils, the time can be tripled.,Chec

58、k oil level检查油位 Check for leakage检查泄漏 Check oil for water content检查油中水分 Oil change换油 Clean清洁 Check screws for tight fit检查螺栓紧固程度,Hoist Unit / Hoist gearbox 起升装置起升齿轮箱,Hoist gearbox起升齿轮箱 Cleaning清洁,Clean gearbox housing before start working at the gearbox在做齿轮箱工作前清洁齿轮箱外壳 Clean the air vent screw Nr.3 every 3 month每季度清洁通气嘴（NO.3）,Hoist Unit / Hoist gearbox 起升装置起升齿轮箱,Check oil level检查油位 Check for leakage检查泄漏 Check oil for water content