1. Clean pipe bender tank, and clean the pump JinYou filter the same time.
2. Equipment to begin the used 1-2 months, cleaning tank and filter a hydraulic box.
3. Such as the discovery of advance and retreat back cut failure, first check the electromagnetic valve is action such as electromagnetic valve action normal, check valve 6 X3 order, relief valve YF-L20H4 or one-way unloading valve 4 HD3 ever impurities jammed phenomenon. (this phenomenon is commonly used in equipment to begin, incidental). If there are jammed phenomenon, open with gasoline or diesel cleaning, reinstall it.
4. Hydraulic pump station each joint parts are equipped with oil resistant rubber sealing ring, such as sealing ring damage, fuel oil, should change in time.
5. Check each place fasteners and keep it in tighten state.

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