Maintenance of Jaw Crusher

Usage and Maintenance of Jaw Crusher

• The Jaw Crusher can be put into operation only when it works normally without load.
• The stuff should be fed steadily.
• Temperature rise of bearing should not exceed 35℃, the max temperature should not exceed 70℃. Otherwise, stop the Jaw Crusher and examine at once.
• Stop feeding before stopping the motor. Stop the motor only when all the stuff is discharged from the Jaw Crusher.
• If the Jaw Crusher is blocked by the stuff, stop the motor at once. Start up the Jaw Crusher again when the blocked stuff is clean away.
• Clean the bottom of toggle plate and keep the back of moving jaw clean.
• The jaw plate can be reversed when one end is worn out.

Lubrication of Jaw Crusher

• Check the lubrication frequently to make sure the Jaw Crusher can work normally and extend the life time.
• The lubrication used in the Jaw Crusher depends on the place and climate. Usually quicklime grease is used.
• he lubricant grease added to the bearings should be 50～70% of its capacity. Change the lubricating oil once every three months. Before changing the oil, wash the bearings carefully with clean petrol or kerosene. The contacting part of toggle plate and toggle plate seat should be oiled before start-up.

Problem and Solution of Jaw Crusher

Possible problem	Cause	Solution
The flywheel rotates but cannot crush, the toggle plate falls down	1. spring broken	1. replace spring
	2. draw bar broken	2. replace draw bar
	3. draw bar bolts loose	3. fasten the bolts
Mobile jaw plate jump	Jaw plate fasteners loose	Fasten the bolts
Fixed jaw plate jump	Jaw plate asteners loose	Fasten the bolts
The temperature of bearing too high	1. lack of lubricant oil	1. Add more oil
	2. oil dirty	2. Replace the oil
	3. bearing broken	3. Replace the bearing
Noise at back of the machine	Draw rod loose, toggle plate beat the moving jaw and liner gasket	Fasten the draw bar bolt
Spring broken	Spring not loose when adjusting the discharging outlet	Fasten the draw rob bolt

Notice: This table of Problem and Solution of Jaw Crusher is only for referrence.