8.2 Start running after deposit for a long time ............................................................................. 369 Maintenance .......................................................................................................................... 379.1 Maintenance general ............................................................................................................. 379.2 Periodic maintenance schedule............................................................................................. 389.3 Remove or installing the hood ............................................................................................... 419.4 Remove or installing the drive wheel cover ........................................................................... 429.5 Truck used oil and lubrication ................................................................................................ 439.6 Check the fuses ..................................................................................................................... 4410 Relevant safety directive or standard (CE) ........................................................................... 45Part Ⅱ:Structure, Principle and Maintenance ....................................................................... 471 Drive Unit ............................................................................................................................. 471.1 Data sheet.............................................................................................................................. 471.2 Assemble and use notice ...................................................................................................... 481.3 Fault and troubleshooting ...................................................................................................... 481.4 Drive Motor ............................................................................................................................ 491.5 Electromagnetic brake ........................................................................................................... 531.5.1 Electromagnetic brake working principle .............................................................................. 541.5.2 Electromagnetic brake installation ........................................................................................ 551.5.3 Maintenance .......................................................................................................................... 561.5.4 Adjust the Air Gap of the Brake............................................................................................. 571.5.5 Common fault and troubleshooting ....................................................................................... 592 Hydraulic system ................................................................................................................... 602.1 Hydraulic system working principle ....................................................................................... 602.2 Hydraulic system fault diagnosis and correction ................................................................... 613 Electric system ...................................................................................................................... 623.1 Electrical schematic diagram ................................................................................................. 623.2 Drive motor controller ............................................................................................................ 633.2.1 Maintenance .......................................................................................................................... 633.2.2 Diagnostics and Troubleshooting .......................................................................................... 64Attachment:Table for bolt’s tightening torque .............................................................................. 66