蓄电池冬季使用五注意冬季日照时间短，照明时间长，拖拉机上的发电机向蓄电池的充电量就相应减少；加之冬季气温低，发动机起动困难，电起动机起动时间延长，耗电增加。为保证拖拉机能正常工作，须注意以下几占．（１）气温在零下３０℃：时，应保持电解液的比重仍在１．... Winter use of the battery five attention winter sunshine time is short, lighting a long time, the tractor generator to the battery charge decreased accordingly; combined with the low winter temperatures, the engine start difficult, electric starter starting time is extended, the power consumption increases. To ensure the tractor can work properly, we must pay attention to the following few. (1) When the temperature is minus 30 ℃:, keep the proportion of electrolyte still at 1. ...