拖拉机液压分配器在正常状态下,农具提升或下降到极限位置时,滑阀应自动回到“中立”位置。如果分配器滑阀在提升或下降终了时不能回到“中立”位置,液压油路中的压力就会继续增加。一是使发动机的负荷明显增 Tractor hydraulic distributor Under normal conditions, when the implement is raised or lowered to the limit position, the spool valve should automatically return to the “neutral” position. If the dispenser slide valve does not return to the “neutral” position at the end of lift or descent, the pressure in the hydraulic circuit will continue to increase. First, the engine load increased significantly