Zinc Rods - Inspect/Replace
海水回路腐蚀可能导致冷却系统部件的早期损蚀,渗漏和可能出现的冷却系统污染。
在发动机海水冷却系统中插装锌棒来防止盐水的腐蚀作用。 锌与海水反应导致锌棒损蚀。 锌棒替代冷却系统的更为关键的发动机零件而受损蚀。 锌棒的快速氧化耗损可能说明存在不受控的来自未正确安装的电气附件或未正确接地的电气附件的电流。
锌棒必须在适当的周期进行检查。 锌棒必须在出现损蚀时予以更换。
检查锌棒
锌棒为红色,便于识别。 表 1 显示锌棒的位置和数量:
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锌棒位置     | |
位置     | 数量     |
热交换器的进口接头     | 1     |
热交换器的出口弯管     | 1     |
备用水泵的出口弯管     | 1     |
- 拆下锌棒。
- 用锤子轻微敲击锌棒。 如果锌棒已经损蚀,或锌棒成片剥落的话,应安装新锌棒。
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图 1 | g00104048 |
更换锌棒
- 将旧锌棒拧下来或将锌棒从旋塞上钻凿下来。 清洁塞。
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图 2 | g00104049 |
- 在新锌棒的凸肩上涂抹 9S-3263 固定胶 。 只在锌棒的凸肩上涂覆固定胶。 把锌棒安装在螺塞中。
- 在螺塞的外螺纹上涂覆 5P-3413 管道密封剂 。 安装锌棒。 更多有关扭矩技术规格的资料,请参阅操作和保养手册。
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