3126B Engine for Caterpillar Built Machines Caterpillar


Electric Starting Motor

Usage:

120H 124

207-1511 电起动马达总成




图 1g01139250



图 2g01139249

当从驱动端观看电起动马达时,马达旋转方向如下。 ... 顺时针

25 °C (77 °F) 时无负载

转速 ... 3638 ± 413 RPM
电流 ... 90 ± 16 安培
电压 ... 23 V

(1) 将蓄电池端子上的螺母拧紧至以下扭矩。 ... 30.5 ± 3.5 N·m (22 ± 3 lb ft)

(2) 将接地端子上的螺母拧紧至以下扭矩。 ... 30.5 ± 3.5 N·m (22 ± 3 lb ft)

(3) 将开关端子上的螺母上紧到以下扭矩。 ... 2.25 ± 0.25 N·m (20 ± 2 lb in)

注: 开关接线端必须用热收缩管绝缘。 不要使用模压接线端。

(4) 将马达端子上的螺母拧紧到以下扭矩。 ... 14.7 ± 3.4 N·m (11 ± 3 lb ft)

注: 内部 Torx 螺钉在拧紧或拧松螺母时必须固定。

(5) 将马达机架端子上的螺母拧紧至下列扭矩。 ... 8 ± 3 N·m (70 ± 27 lb in)

电磁阀

在 20 V 和 25 °C (77 °F) 下的最大电流

吸合绕组 ... 36 安培
保持绕组 ... 6 安培

安装位置




图 3g00726327

(A) 在将电起动马达安装到发动机上时,起动电磁阀必须: ... 高于水平面至少 15°

(B) 允许范围

207-1517 电起动马达总成




图 4g01139254

典型实例




图 5g01139255

典型电磁阀连接

当从驱动端观看电起动马达时,马达旋转方向如下。 ... 顺时针

25 °C (77 °F) 时无负载

转速 ... 7200 ± 1250 RPM
电流 ... 82.5 ± 17.5 安培
电压 ... 23 V

(1) 将蓄电池端子上的螺母拧紧至以下扭矩。 ... 30.5 ± 3.5 N·m (22 ± 3 lb ft)

(2) 将接地端子上的螺母拧紧至以下扭矩。 ... 30.5 ± 3.5 N·m (22 ± 3 lb ft)

(3) 将螺母拧紧至以下扭矩。 ... 2.25 ± 0.25 N·m (20 ± 2 lb in)

(4) 将开关端子上的螺母上紧到以下扭矩。 ... 2.25 ± 0.25 N·m (20 ± 2 lb in)

(5) 将马达端子上的螺母拧紧到以下扭矩。 ... 14.7 ± 3.4 N·m (11 ± 3 lb ft)

注: 内部 Torx 螺钉在马达端子螺母的拧紧或松开期间必须固定。

(6) 将马达机架端子上的螺母拧紧至下列扭矩。 ... 8 ± 3 N·m (70 ± 27 lb in)

电磁阀

在 20 V 和 25 °C (77 °F) 下的最大电流

吸合绕组 ... 20 伏时 57 安培
保持绕组 ... 20 伏时 13 安培

安装位置




图 6g00726327

(A) 在将电起动马达安装到发动机上时,起动电磁阀必须: ... 高于水平面至少 15°

(B) 允许范围

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