Maintenance & Fluidsppt维护&fluidsppt
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-来源网络,仅供个人学习参考 预测性维修(PredictiveMaintenance,简称PdM)
预测性维修概述
预测性维修(PredictiveMaintenance,简称PdM)是以状态为依据(ConditionBased)的维修,在机器运行时,对它的主要(或需要)部位进行定期(或连续)的状态监测和故障诊断,判定装备所处的状态,预测装备状态未来的发展趋势,依据装备的状态发展趋势和可能的故障模式,预先制定预测性维修计划,确定机器应该修理的时间、内容、方式和必需的技术和物资支持。预测性维修集装备状态监测、故障诊断、故障(状态)预测、维修决策支持和维修活动于一体,是一种新兴的维修方式。
预测性维修不仅在名字称呼上有不同,在概念的内涵和外延上也有出入,因此又有狭义和广义预测性维修两种概念。
狭义的预测性维修立足于“状态监测”,强调的是“故障诊断”,是指不定期或连续地对设备进行状态监测,根据其结果,查明装备有无状态异常或故障趋势,再适时地安排维修。狭义的预测性维修不固定维修周期,仅仅通过监测和诊断到的结果来适时地安排维修计划,它强调的是监测、诊断和维修三位一体的过程,这种思想广泛适用于流程工业和大规模生产方式。
广义的预测性维修将状态监测、故障诊断、状态预测和维修决策多位合一体,状态监测和故障诊断是基础,状态预测是重点,维修决策得出最终的维修活动要求。广义的预测性维修是一个系
-来源网络,仅供个人学习参考 统的过程,它将维修管理纳入了预测性维修的范畴,通盘考虑整个维修过程,直至得出与维修活动相关的内容。
修复性维修(CorrectiveMaintenance),又称事后维修(Break-downMaintenance),是“有故障才维修(FailureBased)”的方式,它是以设备是否完好或是否能用为依据的维修,只在设备部分或全部故障后再恢复其原始状态,也就是用坏后再修理,属于非计划性维修。
Maintenance MinderTMWhen maintenance is due, the system message indicator comes on and amessage appears on the display every time you turn the vehicle on. Themessages notify you when to change the engine oil or when to bring yourvehicle to a dealer for indicated maintenance services.
You can view them on the engine oil life screen at any time.1.Set the power mode to ON.2.Press the Home button.3.Roll the left selector wheel until the wrench symbol is displayed.4.Press the left selector wheel to go to the Maintenance screen. The engineoil life appears on the driver information interface along with maintenanceitems due soon.MAINTENANCEU.S. Models•Adjust the valves during services A, B, 1, 2, or 3 if they are noisy.Canadian Models•Adjust the valves during services A, 0, 9, 1, 2, or 3 if they are noisy.U.S. ModelsMaintenance, replacement, or repair of emissions control devices and systemsmay be done by any automotive repair establishment or individuals using partsthat are "certified" to EPA standards.According to state and federal regulations, failure to perform maintenance onthe maintenance main items marked with # will not void your emissionswarranties. However, all maintenance services should be performed inaccordance with the intervals indicated by the Driver Information Interface.nMaintenance Minder Service CodesThese codes indicate what services are due on your vehicle.U.S. ModelsMAINTENANCECanadian ModelsMAINTENANCEUnder the HoodMAINTENANCE
Edition February 2010 A.m. prices can increase. We suggest you to ask for the relative adjournment We remember you to check periodically our web-site, , to look over the new SB
CH-77 HELICOPTERS HELI-SPORT S.r.l.
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Edition February 2010 A.m. prices can increase. We suggest you to ask for the relative adjournment We remember you to check periodically our web-site, , to look over the new SB CH-7 HELI-SPORT MAINTENANCE
CH-7 KOMPRESS 25 HOURS_____
FOLLOWING MAINTENANCE HAS TO BE EXCUTED ONLY AFTER THE FIRST 25H
FLIGHT
Description Q.ty Total Spare Parts Manufacture HOURS
Oil transmission main gearbox, MRG filter and oil tail box replacement
76,40 40,00 1 Oil free wheel replacement * 30,94 16,00 0,4 Clean air and fuel filter and fuel pump 33,16 40,00 1 Check and alignment of pulley and belt PLX025K 80,00 2 ENGINE’S INSPECTION: CHECK UPDATED ROTAX’ MANUAL
设备检修分类:
1 定期检修 Time Based Maintenance(TBM)
定期检修是一种以时间为基础的预防性检修,根据设备磨损和老化的统计规律,事先确定检修等级、检修间隔、检修项目、需用备件及材料等的检修方式。
2 改进性检修 Proactive Maintenance(PAM)
改进性检修是指对设备先天性缺陷或频发故障,按照当前设备技术水平和发展趋势进行改造,从根本上消除设备缺陷,以提高设备的技术性能和可用率,并结合检修过程实施的检修方式。
3 诊断检修 Run Till Failure(RTF)
诊断检修是指根据设备运行工况和设备磨损和老化、缺陷等情况,在设备发生故障或其他失效之前进行的检修。
检修等级 Maintenance Grades
检修等级是以机组检修规模和停用时间为原则,将发电企业设备的检修分为A、B、C、D四个等级。
1 A级检修 A Class Maintenance
A级检修是指对发电设备进行全面的解体检查和修理,以保持、恢复或提高设备性能。
2 B级检修 B Class Maintenance
B级检修是指针对发电设备某些设备存在问题,对部分设备进行解体检查和修理。B级检修可根据发电设备状态评估结果,有针对性地实施部分A级检修项目或定期滚动检修项目。
3 C级检修 C Class Maintenance
C级检修是指根据设备的磨损、老化规律,有重点地对设备进行检查、评估、修理、清扫。C级检修可进行少量零件的更换、设备的消缺、调整、预防性试验等作业以及实施部分A级检修项目或定期滚动检修项目。
4 D级检修 D Class Maintenance
D级检修是指当设备总体运行状况良好,而对主要设备的附属系统和设备进行消缺。D级检修除进行附属系统和设备的消缺外,还可根据设备状态的评估结果,安排部分C级检修项目。
变压器检修后投运前检查项目