译文：
计量泵的日常维护需注意那些？你好！我们单位现在正在使用贵司春姜牌KD系列隔膜计量泵，我想了解一下如何进行日常维护，以便更好的使用。谢谢!
答：日常维护：
1.润滑油在最初运行250小时后需更换。以后每2500小时或六个月更换一次润滑油。
2.每六个月检查一次单向止回阀和隔膜，根据实际使用情况决定是否更换。
3.环境温度低于10℃时，应更换冬季润滑油(Mobil 626等)

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原文：
Metering pump routine maintenance required to pay attention to those? Hello! Our unit are now using your company brand Chun Jiang KD Series diaphragm metering pump, I would like to know how to carry out routine maintenance in order to better use. Thanks
A: Daily Maintenance:
1. Lubricating oil to run in the first 250 hours after the need of replacement. Every 2500 hours or six months after the first oil change.
2. Inspected once every six months, one-way check valve and the diaphragm, according to the actual use to decide whether to replace.
3. Ambient temperature is below 10 ℃, should be replaced in winter oil (Mobil 626, etc.)