What causes a hydraulic CYL to lock up overnight?
You stated that the cylinders locked up overnight. This indicates the oil used reacted with the packing material and swelled the packing during the night. Try repacking the cylinders and use a synthetic type of 10wt. hydraulic oil. Check the head packing as well.
What to do when your hydraulic CYL gets stuck?
Another answer would to be go for a swim in the “ice pond” across the street from the Hilo Hukilio (or however you spell it) or maybe a short drink in the lounge at the above mentioned motel. Then a short run to the sumit of Mona Kea to see if the cylinder works up there.
What causes a hydraulic ram to get stuck?
First, he primed the system with the ram extended and therefore, (I believe) he caused the air in the cyl. to compress and aerate the oil. It cycled up and down several times the first day, but wouldn’t the next day. The hydraulic ram is now stuck. They removed and drained the cylinder, took it all apart and couldn’t find anything wrong with it.
What causes a convertible top to get stuck?
This means that rather than using the traditional approach of cable and pullies, the car uses a set of pressurized cylinders to both open and close the top. Over time, the system can leak or fail, causing your convertible top to get stuck in either the up or down position. In this article I will explain the basics of the system.
You stated that the cylinders locked up overnight. This indicates the oil used reacted with the packing material and swelled the packing during the night. Try repacking the cylinders and use a synthetic type of 10wt. hydraulic oil. Check the head packing as well.
What to do if your hydraulics line is not working?
Change to oil with lower viscosity or better viscosity index and lower pour point. An immersion heater placed in the oil may help under severe cold conditions. 4. Control line may be too small, or metering choke valve not working properly. 5. Repair or replace worn parts and loose packing. Check oil to see that viscosity is not too low.
How to fix a hydraulic problem in a dump truck?
We have hooked up all hoses, raised the bed unpined the cylinder, greased, smacked with hammer big one, released vent from top so fuild would release down You figure out the ‘Why’ yet, burr, gouge, rolled piston packing??
What causes the stick slip effect in hydraulic fluid?
As 7 A 1 As 8 A 1. hydraulic fluid dirty 2. hydraulic fluid foams 1. Stick-slip effect due to the friction of the cylinder packings being too high. 2.