The main components of the jaw crusher are frame body, swing jaw, eccentric shaft, jaw plate, toggle plate, bearing bush and so on. Today we will talk about key components maintenance of the of jaw crushers – eccentric shaft and bearing bush.
• If the eccentric shaft just worn a little bit, then we can use lather to lathe them in right shape, meanwhile, we need to narrow the inner diameter of the shaft. Whereas if the size of the shaft is smaller more than 5% compared with its original size, then we should consider replacing the eccentric shaft with a new one.
• As for the bearing bush, we usually cast them after two year usage. If the eccentric shaft, bearing bush or mandrel are worn out and the gap between them is around 1.5 times larger than its original gap. Then we need to add spacers to adjust it or replace them with new parts.
• If the oil groove is worn out more than 1.5 millimeters, it is necessary to rebuild the oil groove.
• If the gap between the upper cover of the connecting rod and eccentric shaft is 1.5 times larger than its original installation, we need to add spacers to adjust it or replace them with new parts.
• If the babbitt metal on the bearing bush is worn out or has severe scratch, we usually choose to re-cast this part.
A small skill may bring the customer great profit. The service staffs of Luoyang Dahua Heavy Type Machinery, Co., Ltd. are positively to establish a long-term relationship with customer. They will initially show up at the site fault and solve the problem solidly, quickly and effectively. Moreover, the service staffs will gather numerous usage skills collecting from daily usage. They know the customers well and make benefit for them.