四、试播 1.试播前的检查调整:①检查各紧固件有无松动,转动部位是否灵活,是否缺油。②调整四连杆的调整杆,使播种机与地面平行。③根据播种作物选择吸种盘。在装吸种盘时,首先将吸种盘放在吸气盖加工面上校正,确保吸种盘与吸气盖加工面接触严密,使播量精确。④根据穴距(播量)要求,在穴距(播量)表上查出主动链 Fourth, the pilot 1. Pre-broadcast inspection and adjustment: ① Check whether the fasteners loose, rotating parts are flexible, whether the lack of oil. ② adjust the four-bar adjustment rod, the planter and the ground parallel. ③ According to seeded crop selection sucker. In the suction seed plate, the suction plate on the first suction surface processing on the correction, to ensure suction plate suction cup processing surface in close contact, so that the sowing accuracy. ④ According to the hole distance (sowing) requirements, acupressure (sowing) table found on the initiative chain