| Fault phenomenon | Cause Analysis | Method of Resolution |
| Machine power is not enough | The power of the engine is insufficient; the Pulley is not equipped shaft key; the wire is too thin; | Check and repair the power supply, wires, motors, etc.; install or replace the shaft key |
| Abnormal sound | There are debris in the crushing chamber; the moving knife and the fixed knife collide; the transmission gear or shaft sleeve is damaged | Remove debris; adjust blade clearance; stop machine for inspection and replace damaged parts |
| Feeding difficulties | Grass roller with grass | Stop the machine for cleaning |
| Material blockage | Overfeed | Stop the machine and clean the grass |
| Two grass roller with grass | ||
| Upper grass roller with grass | ||
| The final pieces uneven | Blades have blunt edges | Sharpen blade |
| The blade gap is too large or uneven | Adjust blade clearance | |
| Spring force at grass pressing roller is not enough | Adjust or replace the spring | |
| Machine does not work | Machine running parts wrapped around grass | Stop the machine for cleaning |
| Spindle bearing damage | Replace new bearings | |
| Lack of lubricant | Lubricate regularly | |
| The motor is running normally, the machine is can not cutting | Motor speed reverse | Adjust the direction of the motor wiring copper sheet |
