1. Overheat of Bearing

Cause: excess or lack of grease, polluted grease, broken bearing

Solution: add adequate grease with 50% bearing volume, cleaning bearing, changing grease and bearing.

2. Oversized Discharged Material

Cause: seriously-worn hammerhead, broken grate bar

Solution: change hammerhead and grate bar

3. Reduced Output

Cause: clogging grate bar, uneven feeding

Solution: stop and clean clogged material in the grate bar, adjust feeding structure

4. Rattle of Elastic Shaft Coupling

Cause: loosen pin shaft, broken elastic ring

Solution: stop and tighten pin shaft nut, change elastic ring

5. Rattle in Machine

Cause: objects other than crushing material enter into machine, loose liner fastener and hammer impact liner, broken hammer and other spare parts.

Solution: stop and clean crushing chamber, check liner fasten condition and the gap between grate bar and hammer, change broken spare parts.

6. Machine Shaking

Cause: underqualified static balance of rotor out of hammerhead change or worn hammerhead; broken hammerhead, unbalanced rotor, curved and broken pin shaft, crack of triangle tray and disc, loose foundation bolt.

Solution: unload hammerhead, make the static balance of rotor meet requirements, change hammerhead and pin shaft, fasten foundation bolt.