Reasons: lack of grease; too much grease; grease filthy degenerate; bearing damage.
Solution: filling amount of grease; bearing grease should be run within 50% of its space capacity; cleaning
Bearings; replacement grease; replacement bearings.
2.Failue：the particle size is too large
Reasons: excessive wear of the hammer; screening of the fracture.
Solution: Replace the hammer; replace the screen bar.
Reasons: screening of the gap is blocked; feeding uneven.
Solution: parking, cleaning up the gap in the screen of the obstruction; adjust feeding agencies.
4.Failue：flexible couplings produce percussion
Reason: pin loosening; elastic ring wear;
Solution: stop pin and tighten the nut; replace the elastic ring.
5.Failue：internally generated percussion machine
Reasons: non-broken material into the apparatus; liner fasteners loose, hammer impact on the liner; hammer or other parts broken.
Solution: parking, cleaning up the crushing chamber; check the lining of the fastening and the hammer and the screen of the gap between; replace broken parts.
6.Failue：the machine vibration
Reason: replacing hammer wear and tear or due to cone sub-rotor static balance requirements; hammer broken rotor imbalance; pin bending and breaking; Triangle Park, disk drive or cracks; bolt loose.
Solution: Remove the hammer, by weight, select the hammer, so that each shaft hammer hammer hammer axis relative to the total weight of the hammer to its total weight is equal, that meet the requirements of static equilibrium; replacement hammer; replacement pin; Welding repair or replacement; fastening bolts.