Generally speaking, the separation bearing of the forklift clutch works very frequently, and the number of damages accounts for a large proportion of forklift failures. For example, if the driver is operating well and the maintenance is timely, the bearing can be used for about 3 months, but when it is repaired It must also be replaced with a new one. If the driver's technical level is low, the forklift being driven has damage to the separation bearing almost every month, and other parts such as the release lever and clutch plate will be damaged after the damage.
Where is the reason why the clutch release bearing is easily damaged? In practical experience, although the company has strictly required the driver to drip the release bearing oil once a day, not only is the operation cumbersome, but the bearing is still often damaged. After analysis, it is believed that because the high temperature of the engine is transmitted to the separation bearing, and the high-speed rotation of the bearing will also generate high temperature, under such conditions, it is difficult for the lubricating engine oil to remain in the bearing. The bearing works continuously at high temperature, and because the lubrication conditions are not Good, which causes the separation bearing to be easily damaged frequently.
Based on the above problems, it has also been tried to heat the bearing in the grease to make the grease soak into the bearing. After such treatment, although the grease can fill the bearing, the structure of the grease after the high temperature treatment is destroyed. The performance is greatly reduced, the effect of using this method is very unsatisfactory, and the service life of the bearing has not been extended. We have also used a pointed grease gun to directly inject grease into the separation bearing. After being installed on the vehicle, the service life of the bearing has been greatly extended after observation and detection. This oil injection method has received satisfactory results, but the operation is more complicated. Then I explored the case of adding butter when the engine did not disintegrate. First, the trial was successful on the 475 C engine, and then on the 475 C and 480, 492 engines, and they all received good results. After repeated practice, improvement, and summing up experience, a set of relatively simple oil injection operation methods are finally formed. The specific process is as follows:
One: The oil injection method when the engine does not disintegrate: First open the clutch cover and observe the wear of the separation bearing. If it is confirmed that the bearing is not damaged or the wear does not exceed the limit, remove the clutch pedal and adjust the connecting rod shaft pin to separate the Return the seat to the last position, use a pointed grease gun to fill the hole of the bearing seat with grease until the bearing overflows, then turn the bearing slightly, refill the oil, and repeat the above work until there is a little grease spill around the bearing. Rotate the bearing and observe the amount of oil. If you feel resistance to the bearing rotation, it proves that the bearing is filled with butter. Then remove a small amount of butter spilled from the bearing housing and reassemble the removed pin and clutch cover.
Two: The oil injection method for disassembling the engine. Disassembling the engine to expose the assembly of the separation bearing and the bearing seat. Use a pointed nozzle grease gun to add oil to the small oil hole below the inner ring of the separation bearing seat. Until the bearing is covered with butter, it is enough.
