Knowledge of forklift maintenance and replacement of main bearings

by:Jxforklift     2022-05-31
When the forklift truck is repairing and replacing the main bearing, it is necessary to carefully handle various pads, such as the oil pan or the valve cover, because the touch area is large, it is not easy to be compacted, and it is easy to cause oil leakage. The forklift should tighten each nut according to the repair specifications. If the gasket is too loose and not tightened, oil will leak; if it is too tight, the metal around the screw hole will bulge or the screw will be slipped, causing oil leakage. When the gap between the main bearing and the journal is too large, the front and rear oil seals will lose their sealing due to the impact of the crankshaft, resulting in oil leakage from the crankshaft head, or oil seepage into the clutch, which will contaminate the friction plates and cause slippage and work failure. It is also necessary to replace severely worn parts in time, such as cylinder liners, pistons, and piston rings, which are worn to a certain extent, which will cause high-pressure gas in the incineration chamber to escape into the crankcase. In addition, the failed oil seal should be replaced in time. If the oil seal is improperly installed, the journal and the oil seal edge are not concentric, and it is easy to throw oil due to deflection.
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