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How to Keep a Hydraulic Cylinder From Going In

Hydraulic cylinders are designed to extend and retract with pressure from hydraulic fluid. The hydraulic cylinders are much easier to work with because they connect to the power source with hydraulic hoses. Old style cranes used cables to operate. Today cranes, back hoes and other machines are hydraulically driven. Hydraulic cylinders are used on farm equipment. It is a hydraulic cylinder that raises and lowers the boom into the truck running along side a potato harvester. There are several reasons why you dont want a hydraulic cylinder to go in. One reason may be when transporting equipment on the road.

Instructions

1

Insert two On-Off ball valves, one in each line of the cylinder that you want to hold in the out position. Apply thread tape to the fitting of the ball valves when installing them. Use a wrench to tighten all the fittings to avoid any leaks.

2

Cycle the cylinder in and out several times before extending it to the length you want it at. The cycling is done by running the cylinder in and out, which will bleed any air that entered out of the cylinder and lines when you installed the ball valves.

3

Set the cylinder at the extended out length you desire and turn the levers 90-degrees to shut off both ball valves to prevent fluid movement in the cylinder. This method works well as long as the cylinder does not leak. If this method is not suitable for your situation, you have a different method to follow.

4

Measure the distance between the top of the cylinder rod and the cylinder housing. The cylinder rod is the chrome rod that goes in and out of the hydraulic cylinder.

5

Cut two pieces of angle iron the same length as the measurement of the cylinder rod. Place the angle pieces over the extended chrome cylinder rod and between the cylinder housing and end. Use the muffler clamps to clamp the angle on the top and bottom. The clamps hold the angle pieces in place so that the cylinder rod is prevented from going back in.

Posted by Unknown at 6:22 PM

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