General forklift gear pump parts are costly, and the gear pump belongs to the wear parts, so if we do not replace the premise of extending the service life of the gear pump?
1, forklift gear: gear outer circle wear and glueing, so that the radial clearance increases, light on the use of no apparent impact, not repair;
In severe cases, the gear should be replaced.
2, gear on both sides of the end face wear, light line, can be used to grind the burr marks grind off;
When the wear is serious, it can be ground flat on a grinder.
But as long as a gear face wears, another gear also needs to grind simultaneously to ensure that the thickness difference between the two gears is within 0.005mm.
When grinding, attention should also be paid to the high precision of the end face, hole, and end face.
After grinding, the sharpening edge burr should be removed with oilstone grinding, but not chamfering.
3. The gears of the oil pump work in one direction, so the tooth surface is wearing on one side.
The burr can be removed from the gear with a whetstone, and the meshing direction of the gear can be changed to restore the operational performance of the oil pump.
4. Forklift gear bearing frame: when the end face is worn, or the line is pulled, the four bearings can be put on the surface grinder and grind the end face out at a time with the non-gear contact surface as the benchmark.
5, the inner hole wear is generally tiny. If the wear is serious, it can be ground or the aperture grinding to repair size, optional needle rolling.
6, equipped with side plate or axial floating sleeve wear, scratches and grooves, can be damaged surface polishing.
The method is to put no400-600 grinding paste on the smooth surface, add washing oil or wax to rotate on the surface of the side plate gently, and polish it.
7, forklift gear pump body: the wear of the pump body generally occurs in the oil suction chamber. Some oil pumps can be repaired by the transposition method from the structure. The pump body is 180° around its axis so that the oil suction chamber becomes the oil pressure chamber to restore its working ability.
Of course, what we are talking about here is the gear pump with better quality, if the quality is poor and the price is lower, there is no need to maintain it, and the texture of its parts may not support this way.
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