The following points are main common troubles during using Ring Rolling Machine, and Solving Way for them:

 

No action of main oil cylinder, No pressure of hydraulic parameter

If the hydraulic oil is not filled out, check the oil pump

If the adjusting pressure is no action, clean the adjusting valve

If there is no pressure in the oil tank, change the seal rings for oil tank

If the pressure is decreased, exchange hydraulic oil in the oil tank

 

Rolling ring roundness tolerance is exceed defined range

Check rolling wheel seat, if it’s jumping exceed tolerance, change the bearing

Check if the rolling wheel is machined as per the requirement

Check the matching of baffle plate and impression of rolling wheel

Check mandrel, if it is jumping, exchange it

Check lower support assembly, if it’s worn greatly, exchange it.

Check if the angle of thrust roller and signal roller is suitable, if not, adjust it

Check slide guide, if it’s worn greatly, exchange it.