叉車啟動機主要是由以下幾大部分結合而組成
1、啟動機外殼， 殼是鐵制成的或者是鋁合金的，一般程圓筒狀，形成磁力線通路，內側面以永久磁鐵代替激磁線圈和鐵芯，以減小體積
2、接觸器(磁吸開關)3、拔叉4、白金觸點5、連接接線頭6、接線柱7、螺絲8、螺母9、定子10、轉子11、碳刷架
12、碳刷 正常是有四個，兩個是絕緣夾子支承;兩個接地，同樣用夾子支承并與整流子接觸。電流從碳刷經整流子通向電樞線圈，碳刷由彈簧壓在整流子上，并可在夾子 內上下滑動。電刷要求是單位面積通過的電流大，故會采用電阻小、電流容大的金屬石墨制作而成。
13、軸承，由于啟動負荷大、工作時間 短，故采用含油合金制造的滾珠軸承。軸承上有保證良好潤滑的油槽
14、彈簧15、減速齒輪16、減速盤17、接觸齒輪(單向齒輪)18、O型密封圈19、鋼珠20、卡簧等等結構而組成。
叉車啟(qi)(qi)動(dong)(dong)機啟(qi)(qi)動(dong)(dong)時的工作結(jie)構路(lu)線(xian)(xian)：1.啟(qi)(qi)動(dong)(dong)電(dian)(dian)(dian)(dian)池的正極(ji)、2.電(dian)(dian)(dian)(dian)池連接頭、3.(粗)電(dian)(dian)(dian)(dian)纜線(xian)(xian)、4.啟(qi)(qi)動(dong)(dong)電(dian)(dian)(dian)(dian)機電(dian)(dian)(dian)(dian)磁閥(fa)白金觸(chu)點(dian)一端(duan)、5.(小)電(dian)(dian)(dian)(dian)源線(xian)(xian)、6.保險(xian)絲(si)、7.電(dian)(dian)(dian)(dian)流(liu)表、8.點(dian)火鎖(suo)匙開關、9.啟(qi)(qi)動(dong)(dong)繼(ji)電(dian)(dian)(dian)(dian)器、10.啟(qi)(qi)動(dong)(dong)電(dian)(dian)(dian)(dian)機電(dian)(dian)(dian)(dian)磁閥(fa)線(xian)(xian)圈、11.白金觸(chu)點(dian)連接、12.啟(qi)(qi)動(dong)(dong)電(dian)(dian)(dian)(dian)機電(dian)(dian)(dian)(dian)纜線(xian)(xian)、13.啟(qi)(qi)動(dong)(dong)電(dian)(dian)(dian)(dian)機碳刷(shua)、14.轉子(zi)、15.搭鐵、16.電(dian)(dian)(dian)(dian)池負(fu)極(ji)。