Fixed Fault Solution 1 lift, lifting platforms natural decline (1) discharge check valve. Check valve one-way valve, single valve sealing surface If there is dirt fixed lifting platform, clean check valve. ( 2) relief valve closed lax. Repair or replace pressure relief valve. 2, the lifting platform does not fall (1) lowering valve failure. In the fall button is pressed, check lowering valve if there is electricity. Without electricity, try exclusion; if electricity, you should check whether the solenoid valve spool stuck or damaged (2) the rate of decline decreased offset adjustment control valve speed control valve, such as the regulation invalid replacement valve 3, lowering valve is not closed (1)... lowering valve damaged or jammed, clean or replace the hydraulic valves. (2) limit switch is damaged Ali fixed lifting platform, to replace the lower limit switch. No lower limit switch fixed in Dongguan lifting platform lifting platform, you should check the normal time the relay is normal Before solid lift platform operation, the responsible person shall operate personnel, technical and security account, which shall include: job content and requirements; safety precautions and dangerous point; the division of Personnel and responsibility. Responsible person other than to condition and operating personnel to inspect, but also for viewing terrain, landing compliance with safety requirements or technical measures to develop the work program in advance, if different, should be worked out only after appropriate measures start working. Jinan Zhuo Lifting Machinery Co., Ltd. is a professional production of aerial work platforms, mobile lifts, lifting platforms, hydraulic dock leveler, Mobile Ramps, scissor lifts and other specialized manufacturers, products sold throughout the country. After a long research and exploration, has accumulated a wealth of manufacturing experience Changsha fixed lifting platform, committed to product development, innovation, their professional expertise to create high-quality products Huadu fixed lifting platform, fixed lifting platform, Zhuo lifting machinery By lifting Machinery Co., Ltd. Jinan Zhuo. Jinan Zhuo Lifting Machinery Co., Ltd. (www.sdzlsjjx.com) (www.sdzlsjjx.com) strong, credible, in Jinan, Shandong machining industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Zhuo lifting machinery and you hand in hand into the brilliant, for a better future!