1. The Small Chaff Cutter bearing overheated
故障原因：润滑脂过多、扎草刀或润滑脂过少；轴承损坏；
排除方法：按要求添加润滑脂；更换轴承；对准主轴并平衡转子；更换油封；减少进料能力；适当调整。转子不平衡。
Exclusion method: select and match hammer pieces so that the weight difference does not exceed 59; The hammer blade can rotate flexibly; Replacement of bearings; Alignment or replacement; Balanced rotor.
2.Small Chaff Cutter stuck and had abnormal sound
故障原因：扎草刀螺钉松动；刀片间隙过小；硬物，如金属和常见故障石，进入机器。
Exclusion method: check whether the cutter disc and fastening screw are loose; Loose should be tightened, adjust the blade clearance to the standard requirements; Stop the machine to check and open the Small Chaff Cutter housing to remove foreign bodies.