Incorrect operation methods will easily cause some faults. In summary, incorrect operation methods are mainly as follows:

1. Long-term overload operation. Gear down the power tiller or lighten its load in time if black smoke comes out of the power tiller when it is operated in irrigated field and hard field.
2. Stop for overhaul if abnormal sound is founded. The power tiller can only be restarted after the fault is eliminated.
3. Frequently adjust various kinds of clearance.
4. Incorrect operation methods will easily damage the start pulling disc. Please start strictly according the instruction manual.
5. Do not lift the handrail when changing direction, and turning around by using tilling blade will easily break the tilling blade.
6. Long-term head-warping operation may easily cause insufficient lubrication of the engine.