C7.1 (Mech) Industrial Engine Caterpillar


Welding on Engines with Electronic Controls

Usage:

C7.1 630


注意

由于机架的强度可能会降低,一些制造厂商建议不要在机架或导轨上进行焊接。 有关在机架或导轨上焊接的问题,请向原设备制造商(OEM)或卡特彼勒代理商咨询。


为了避免损坏电气开关以及相关部件,必须采取正确的焊接程序。 如果可能,从装置上拆下部件,然后再焊接部件。 如果不可能拆卸某个部件,当在配备有 Caterpillar 发动机上的装置上进行焊接操作时必须按下面步骤进行操作。 以下程序被认为是在部件上进行焊接的最安全的程序。 该程序应具有电控部件损坏的最小风险。

  1. 关闭发动机。 把开关控制的电源转到 OFF(关闭)位置。

  2. 从蓄电池上断开蓄电池负极电缆。 如果提供了蓄电池切断开关,打开开关。

  3. 断开任何开关以及可能安装的电子调速器的电气连接。


    图 1g01075639
    使用上面示例。 从焊机到焊机接地夹的电流不会损坏任何相关部件。
    (1) 发动机
    (2) 焊接电极
    (3) 钥匙开关处于 OFF(断开)位置
    (4) 蓄电池切断开关处于断开位置
    (5) 断开蓄电池电缆
    (6) 蓄电池
    (7) 电气/电子部件
    (8) 焊接的部件与任何电气/电子部件之间的最小距离
    (9) 要焊接的部件
    (10) 焊机的电流通路
    (11) 焊机的接地夹

  4. 将焊接接地电缆直接连接到要焊接的部件上。 将接地电缆尽可能地靠近焊接点,以减少焊接电流损坏轴承、液压部件、电气部件及接地母线的可能性。

    注: 如果电气/电子部件用作焊机接地,或电气/电子部件位于焊机接地与焊接点之间,则来自焊机的电流就会严重损坏该部件。

  5. 保护导线线束,避免因焊接碎屑和焊溅物损坏。

  6. 采用标准焊接规程进行焊接。

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