中联重工ZT20J-ZT68J-Service-and-Maintenance-Manual-Metric_Imperial-0730.2020维修手册含电器液压原理图

Service and Maintenance ManualZOOMLIONForewordThis Service and Maintenance Manual applies to the ZT20J(ZT68J)aerial work platform (hereinafterreferred to as the AWP)This manual describes proper inspection,servicing and maintenance.Users must fully understand andapply the contents described in this manual to maximize the performance and ensure the long-term safeand efficient use.This manual does not cover the use and maintenance of the engine.For details onengine,please refer to the engine instruction manual.The manual includes the structure and schematic diagram of the main components.If it is necessary torepair and replace the components,the material code of the required replacement parts can be found inParts Manual.This manual should be considered a permanent part of your machine and should remain the machine atall times.ACAUTIONDo not repair the parts marked with professional maintenance.Zoomlion AWP MachineryCompany does not take the consequence for wrong maintenance.AWARNINGThe highest criterion users must keep in mind that Safety first!Pay special attention to the safetycontrol device for regular inspection.Do not operate the machine when the safety device fails orworking abnormally.Do not modify the structure or add additional parts for more functions.Otherwise,you will be responsible for any personal injury or damage caused by the unauthorizedmodification.The warranty period for the aerial work platform is as specified in this Service and MaintenanceManual.When maintenance is required,our company provides on-site service or please go to ourdesignated maintenance point for maintenance.Our company reserves the right to continually revise the contents of this manual with technicalimprovements.Any changes are subject to change without notice.Some of the pictures in thismanual may not match the actual product due to design improvement,etc.,but it does not affectyour use.The product status is subject to the actual product.Symbols and their description:ADANGERDanger indicates an imminently dangerous situation.If not avoided,will result in death or