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Jerky movement of Crane

Safyan ยท 2016-12-18 05:57

Hello Everyone, i have manufactured a 6 ton truck mounted Crane, using 36cc pump. the problem i am facing right now is that its movement is jerky, not during the movement, but at start and end on movement, e.g rotation or extension. can anyone guide me with Hydraulic valve should i use to minimize these jerks? I am using simple hydraulic circuit, from pump to sectional valves to counterbalance valves.

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