The composition of the slipper machine is usually composed of the injection system/closing system/hydraulic transmission system/electrical control system/lubrication system/heating and cooling system and safety monitoring system, mechanical operation can not be normal, are inseparable from these important components, that in the operation of the common problems are mainly those solutions? Mechanical company technicians in the shoe-making injection molding machine for a long time a large number of maintenance. The maintenance work has accumulated rich experience in the first part of the mode-locking part of the frequent failure problems and treatment methods: (a) the treatment methods of non-mode-locking are as follows: (I) Check the safety door travel switch and repair. (ii) Check the power supply in the electric box, change the safety and power box. (iii) Check whether the spool is stuck and clean the spool. (iv) Check whether the I/O board has no output and whether the solenoid valve is charged. (5) Check whether the hydraulic safety switch is pressed and whether the mechanical lock rod baffle is opened. (2) The processing method of opening and closing die machine is as follows: (I) Check whether the lubricating oil pipe is disconnected, if it is disconnected, it must be re-connected to the oil pipe. (ii) Check whether the amount of lubricating oil is small, if the amount of lubricating oil needs to be increased, it is recommended to manually add enough lubricating oil. (iii) Check whether the clamping force is too large, check whether the mold needs large clamping force, and reduce the clamping force if it is not necessary. (iv) Check whether the current of the amplifier board is adjusted improperly, check whether the current parameters meet the acceptance standards, and adjust the current value. (v) Check whether the parallelism is out of whack, use a dial indicator to check whether the parallelism of the first and second plates is greater than the acceptance standard, and the parallelism needs to be adjusted.