As shown in the random file "three services voucher". The warranty requirements: 1. When the user accept the warranty must show three services voucher. 2. If Corn Combine Harvester breaks down, contact must inform distributor below warranty content: Self-propelled Corn Combine Picker product model, the factory Numbers, engine model and form etc products already use nameplate content, how long, detailed instructions on fault condition. 3. Three services of maintenance component supply explanation: to ensure the shut down production 5 years later continue to supply maintenance three services component, but in three services of period, the special parts delivery need to decide after discuss; after three services of period, supply parts need to discuss the price and delivery time. 4. Please be sure to use the product special spare parts and oil. No warranty items: Whoever logo indicate not allow to disassembly of components, if user disassemble by himself, do not grant to guarantee.