trouble shoot of hydraulic shearing machine
Publish Time: 2021-09-23 Origin: Site
What is a hydraulic shearing machine?
Hydraulic shearing machine is a kind of sheet metal cutting machine. It can cut sheet metal to pieces as needed width. The power is from two strong hydraulic cylinders. Hydraulic oil is pumped by pump system to achieve high pressure. Hydraulic cylinders drive the cutting blade carrier to move down and up.
Trouble shoot of hydraulic shearing machine
Operator may face some malfunction of the hydraulic shearing machine. This article is to explain the general malfunctions and the solutions.
Malfunctions | Possible reasons | Solutions |
Machine can not start | Without access to power | Check whether the power connector is loose , fuse is burned. |
Sheet burr is too large | Blade gap adjustment inappropriate | adjust the blade gap over again |
Blunt blade edge | Exchange or hone the blade | |
The cutting beam can not downward | The pump motor turn wrong | Adjust three-phase power cables |
Electromagnetic reversing valve electric plugs contact undesirable | Check electric plugs | |
Electromagnetic reversing valve core is blocked or electromagnetic overflow valve sealing is blocked can not seal | Dismantle and clean the valve | |
Net-type oil filter is blocked | Dismantle and clean the net-type oil filter | |
The pump can not work | Check the pump or exchange it when necessary | |
Cylinder or nipple leak | Check and servicing | |
The cutting beam does not back to the top dead center or the limit switch is unreact | Check the limit switch or cables | |
The counter without resetting | Reset the counter | |
The hold-down and cutting beam order errors or cutting beam return slowly | The nitrogen cylinder pressure is not enough | Aerates nitrogen for nitrogen cylinder until rated pressure |
There is impact sound when cutting beam return to top dead center | The nitrogen cylinder pressure is too high | Reduce the nitrogen cylinder pressure |
Cylinder leak | Seal element wear-out | Exchange seal element |
Nipple leak | Nipple is loose, gasket wear-out | Screw the nipple exchange gasket |
Nitrogen cylinder leakage | Seal oil is not enough or sealing wear-out | Increase seal oil or exchange sealing |