The mobile body straightener is a set of equipment which is used to stretch, measure and heat the damaged and deformed parts of the frame and body of an automobile or light automobile, so as to restore it to its original technical size. The basic structure of mobile body straightener consists of plastic bed. Tension corrector. The measuring device and accessories are composed of four parts. Take the dung suction truck produced by Hubei Heli dung suction truck manufacturer as an example. Please follow the following steps when operating the mobile body straightener: 1. According to the brand model and factory date of the repaired dung suction car, find out the corresponding data card, find out the structural size of the frame, prepare the corresponding fixture and measuring joint, and draw the installation reference position on the car with chalk. 2. After the dung suction car is cleaned, put it on the base of the plastic bed, clamp the edge of the bottom beam of the car body with the pliers of the plastic bed, and tighten the bolts to fix the dung suction car on the plastic bed. At this time, you should try to keep the center line of the dung suction car consistent with the center line of the plastic table. 3. Visually judge the deformed position and size of the dung suction vehicle frame, select at least three points far apart, and determine the position of the vehicle centerline in its undeformed position. 4. Place the measuring bridge on the base of the plastic bed so that its center line is aligned with the center line of the frame. 5. According to the width of the dung suction frame, select the measuring slider of the corresponding range and put it on the measuring bridge, lock it at the corresponding position of the deformed part, then insert the sleeve into the jack of the slider and connect the corresponding measuring connector. 6. Connect the measuring joint to the deformed part, read the readings displayed on the sliding seat and sleeve of the measuring bridge at this time, and compare them with the values marked on the data card to determine the deformation size of the measuring point in the three directions of length, width and height. 7. Fix the tension corrector on the frame of the pedestal, connect the part to be corrected with the cantilever beam with a chain, start the hydraulic cylinder, and pull the chain with a plunger to stretch the deformed part to the original size.