Repair method of main parts of forklift gear pump after damage

1. Forklift gear: The outer circle of the gear is worn and glued, which increases the radial clearance. The lighter has no obvious impact on the use, and it can be repaired; the more serious gear should be replaced.　　2. The end faces on both sides of the gear are worn, and the lighter one can start the line. Grinding can be used to grind away the burr marks; when the wear is severe, it can be smoothed on a grinder. But as long as the end face of one gear is worn, the other gear needs to be ground at the same time to ensure that the thickness difference between the two gears is within 0.005mm. It should also be noted that the precision of the end face and the hole, and the end face and the end face should be high when grinding. After grinding, use oilstone to remove sharp edge burrs, but chamfering is not suitable.　　3. The gears of the oil pump work in one direction, so the tooth surfaces are worn on one side. The gears with worn tooth surfaces can be used to remove burrs with oilstone, and the gear meshing position can be exchanged to restore the working performance of the oil pump.　　4. Forklift gear bearing frame: When the end face is worn or the wire is pulled, the four bearings can be framed on a surface grinder, and the end face is ground out at one time based on the non-gear contact surface.　　5. In general, the inner hole wears less. If the wear is severe, you can grind or grind the hole diameter to the repair size, and choose a roller needle.　　6. u200bu200bWhen the shaft sleeve equipped with side plates or axially floating is worn, scratched or grooved, the damaged surface can be polished. The method is to put no400-600 abrasive paste on the smooth surface, add washing oil or wax to gently rotate on the surface of the side plate for polishing. 7. Forklift gear pump body: pump body wear generally occurs in the oil suction chamber. Some oil pumps can be repaired by transposition method, that is, the pump body rotates 180° around its axis, so that the oil suction chamber becomes a pressure oil chamber to restore its work. ability.　　 8. The oil pump body that cannot be repaired by the transposition method can be repaired by the copper sleeve method.　　 9. After the gear is ground due to end face wear, in order to maintain the axial clearance, the rear end of the pump body needs to be ground to an appropriate thickness.
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