Lower temperatures will have a certain impact on the use of the cutting machine. Due to the low temperature, the viscosity of the hydraulic oil will become larger, and the viscosity of the hydraulic oil will become more difficult, which will cause the oil pump to absorb oil and suck. This will damage the oil pump for a long time. When the viscosity of the hydraulic oil becomes larger, the commutation resistance of the solenoid valve becomes larger, and the coil is overheated. When the viscosity of the hydraulic oil becomes larger, the lubrication of the transmission portion is deteriorated, resulting in an increase in wear of the mechanical transmission portion.