3/14/2023 0 Comments H ilift jack pin s bin ding![]() I guess there could have been a malfunctioning release valve or flow divider but that doesn't make sense given that once it budged, it returned to normal function. Perhaps I didn't have the vehicle balanced properly front to rear (I know I had it spaced equally side to side). I can't say that I understand how bleeding the cylinder would correct a malfunctioning spring in the quick release coupling (unloading presssure?). I then closed the bleeder screw and it came down in tandem with the other side by activating the release valve normally. It took about a half a cup or so and it indeed started to come down. So I grabbed some rags, released the bleeder screw a little and let it bleed. I had bled it a tiny bit previously without success but not with any gusto. He suggested that I bleed the cylinder on the offending side and that it likely would come down. He sounded surprised the this happened and thought that it likely was a malfunctioning quick release fitting at the base of the piston. I discussed the situation with Jason at Dannmar this morning. Well it turned-out to be a not-so-big deal after all. The other tidbit is that there is a small amount (less than a half a teaspoon) of hydrolic oil that leaked out of the flow divider. ![]() That's what makes me wonder about binding. I'm sure Dannmar has a method for this situation.Īnother tidbit: I put a level on the piston (which pushes off of the base at the floor) and on the cylinder (which is in the air when extended) and the piston was an eighth of a bubble leaning in one direction while the cylinder was leaning by a similar amount but in the opposit direction. I may have to rent some additional jack stands and do a slow, six-inches-at-a-time sort of lowering regimen. No can-do on a fork lift or similar - this is in a residential neighborhood in my shop. I've got my hoses run overhead so I'm not sure that I can swap them out and test to see if it changes which side stays stuck. ![]() I'm not too worried about stability in that each side currently is resting on the steel bars that are designed to hold the vehicle at a particular height. This is probably the 6th or 7th time a vehicle has been up on it. Thanks! I do intend on calling Dannmar Monday morning and it's not a crisis to leave it up in the air until that time - just changed my weekend plans is all.īeen using the lift for about three months. I suspect it's going to be messy getting this down! Two questions: How can I safely get the vehicle down? And, any ideas on troubleshooting this? I don't think I can take anything apart until I get the pressure (vehicle) off the lift. If this is correct, then it must be a problem either in the cylinder (binding?) or at the quick disconnect fitting (obstruction?) at the base of the piston. This seems to indicate that the divider valve and release valve are working. When the weight is offloaded by activating the release valve and resting the unstuck side on the safety stop, and resting stuck side on jack stands, the hose goes limp on both sides. When I activate the release valve, the unstuck side lowers normally and the stuck side doesn't budge. When I apply lift power, the not-stuck side moves up but the stuck side does not (it's in the up position a half inch or so above the highest safety stop). So I'm able to get the piston and cylinder free enough to jiggle by hand but I can't get the piston to retract into the cylinder. I put some jack stands under the arms of the stuck side to off load the weight from the piston/cylinder. After lifting the car to the top, I went to let her down onto the highest safety stop and one side lowered but the other is stuck in the up position. I have a MaxJax with a Trooper in the air.
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