The Precautions of Jaw Crusher Wear Parts Replacement

Jaw crusher has many merits, such as easy operation, big crushing ratio and other notable features, it is widely used in mining production line, cement production line, ceramsite lines. But with long-term use,it will wear out, next Hongji tells you the Precautions of Jaw crusher wear parts replacement.

jaw crusher

1, liner replacement
Jaw crusher liner fixed jaw (tooth plate), moving jaw lining (tooth plate), and both sides of the liner (guard)are the most easily to wear. Wear the worst case, lead to larger particle size. When the initial liner wear, you can turn to use the liner, or up and down the two turn to use. Jaw wear more concentrated in the lower part, when 3/5 worn tooth plate, to be replaced with a new liner. When both sides of the liner wear off 2/5, also need to replace a new one.
2, spindles, eccentric shaft, bearing replacement
Shaft wear if not much, just some repair geometry, you can get a lathe turning, but turning the journal when after several reduced size than the original 5%, it is not allowed to turning, replace new.
Since the jaw crusher is working under impact load, thus bearing on the babbitt lining, every two years to re-cast.
If the eccentric shaft and the bearing, spindle and bearing is worn, its top gap is greater than 1.5 times the original assembly gap, the need to adjust or replace padded; oil groove wear 1.5 mm, should reopen oil groove and adjust. Rod head clearance between the cover and the eccentric shaft, worn to assembly clearance greater than 1.5 times, also need to add a new pad adjustment or replacement.
3, the thrust plate replacement
When the thrust plate badly worn or broken front thrust plate, ore crushing chamber must first be removed, serious remove worn or broken thrust plate, inspect movable jaw and bracket on the rod damage. Then pull the vicinity of the fixed jaw movable jaw, the work surface bracket with a dry oil lubricated, put a new thrust plate, it slowly in contact with the work surface bracket and tension rod level, so that the movable jaw thrust board clamped. Tighten security cover, connection lubrication system, and then adjust the size of the port of discharge.

The Precautions of Jaw crusher wear parts replacement are mainly these, the last should be emphasized that we usually use crushing production line equipment, pay attention to maintenance, thus reducing the cost.zrf