Pistons and pistons with pistons at the top of the piston rings shall be marked in the direction indicated by the markings; if not marked, the small eddies beside the vortex pits or pits of the piston shall be directed towards the injector side to ensure gas. Mix evenly. When assembling the piston ring, the top is marked with "UP", "UP", etc., and should be facing upwards; at the top, the undistorted twisting ring should have its inner circle cut or chamfered downward; the chrome-plated ring (the shell should be shiny) should be installed In the first piston ring groove, each ring opening should be staggered 120 to 180 to ensure its sealing effect. Connecting rods and connecting rod cover The connecting rod of the horizontal diesel engine is divided by 45. The section should be face down to improve the stress of the connecting rod bolts. The connecting rod cover and the connecting rod are paired and processed, and the matching marks should be on the same side during assembly to ensure that the roundness and cylindricity of the connecting rod bearings meet the specified requirements. The main bearing cover, bushing or bushing main bearing cover and body bearing seat are all paired boring processing. They should be paired according to the pairing marks. They must not be interchanged or changed in assembly direction so as not to damage the coaxiality and dimensional accuracy of the main bearing housing hole. . The bearing bushes or bushings with oil holes should be aligned with the corresponding oil hole on the bearing seat and the bushing hole to ensure the smoothness of the oil path. For cylinder head bolts, if one end of a bolt is a coarse thread and the other a fine thread, the threaded end of the coarse thread should be screwed into the body; if the ends of the bolt are fine teeth, the shorter end should be screwed into the body. To ensure that the cylinder head can be pressed tightly. The oil pump and fuel pump oil pump adopt planetary rotor type, and the outer rotor should be chamfered towards the pump body to avoid the oil circulating in the pump and reduce the pump oil pressure. The crescent-shaped positioning groove on the fuel injection nozzle plug sleeve should be aligned with the positioning hole on the pump body. The mark (or oil return groove) on the plunger should be installed upward to avoid causing oil supply or diesel "flying". The drive forks at both ends of the drive shaft and drive chain drive shaft should be in the same plane to avoid torsional vibration and damage of the drive components. If the transmission chain adopts spring clips, the direction of the open end should be opposite to that of the chain so as to avoid falling off due to impact during movement. The drive wheel drive wheel is marked with an upward arrow, it should be pointed at the direction of rotation of the tire when it is advanced; when there is no mark, the drive wheel is seen from the back of the locomotive, and the top of the "eight" or "human" pattern should face upward. Chewy Candies,Soft Chews Candy,Chewy Fruit Candy,Best Chewy Candy JINJIANG XIEXIANG TRADE CORP., LTD. , https://www.xiexiangfoodstuff.com
Agricultural machinery assembly parts should pay attention
If the cylinder head gasket has oil holes, it must be aligned with the corresponding oil passage holes on the body and the cylinder head so as to avoid friction caused by oil cut-off on the cylinder valve cover. No oil passage holes and positive and negative shapes are the same, determined by the material of the cylinder head: For the aluminum alloy cylinder head, the flange of the cylinder head should face toward the cylinder; for the cast iron cylinder cover, the flange of the cylinder head should face the cylinder head. .