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How to interchange the vulnerable part of large jaw crusher

The bearing of general large jaw crusher mainly uses the open sliding bearing. The bearing liner is mostly made of Babbitt alloy, the scraping technical of this kind of bearing has a higher requirements. If the scraping is not good or gap adjusted improperly, there can cause burning watt accident.

In process of replacing the bearing of large jaw crusher, we should pay attention to the following points:

A. What should we do when remove the old watt of jaw crusher.

(1) Measure the thickness of the old bush joint surface gasket.

(2) Measure the levelness of the spindle.

(3) Examine whether the spindle is smooth or not, and whether it with the defects of rust, bumps and so on or not. If the situation is exist, you should to eliminate it.

(4) Measure the of the bottom clearance, backlash and end clearance of the bearing bush.

B. Testing of the contact of the watt-back with the bearing of the jaw crusher.

In order to prevent happening of the reverse sliding and rotating between the bearing bush and the bearing pedestal when the equipment operation, it generally adopts the pin, sleeve positioning mode.

C. The techniques requiring of the scraping the bearing bush.

Spindle scraping should meet the required standards of technical.

D. Scraping and grinding the spindle bush.

The scraping is generally divided into rough scraping, fine scraping and refined scraping three processes.

E. The measurement and the adjusting method of the bearing clearance.

Reasonable adjust bearing clearance is an important issue, it must meet specified standards

The general adjusting methods include: top clearance adjusting and measuring methods, side gap adjusting and measuring methods, the axial clearance measuring method.

F. The assembly and test.

When assemble the jaw crusher, clean the bearing bush, shaft, oil collector and lubricating oil pipeline at first. Then assemble the main bearing, connecting rod and other components. When testing, actuate the pump, and ensure the amount of fuel supply slightly bigger than that of normal operation. As in the process of testing does not appear the phenomenon that the temperature is elevated and the current significantly increased, that proves the success of the overhaul, then the equipment can be used normally.

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Jaw breakers:http://www.hxjq-crusher.com/1.html

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This entry was posted on Sunday, July 6th, 2008 at 1:12 am and is filed under Tattoo Supply. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.