Hi, I am a complete newbie at this, so pre-forgive any ignorant questions. Buddy of mine has purchased a few dozers and loaders (all track) to be able to make two completely working machines. Long story short, we just bought a rebuilt carburetor and starter to install on one of the loaders but we need to lift the arm to get access to the location. We tried with another semi-working loader (runs but huffs a ton of smoke) but we blew a hydraulic line trying to force it up. Any tricks to this? Would simply having someone in the loader holding the actuator help release the hydraulic pressure to allow the arm to lift? Sorry, I do not have any years or brands, but can share this picture if it helps. Thanks for any assistance. I will try to answer any questions you have.
Yes, you need to hold the control valve in the lift position to allow oil to flow into one side and out of the opposite side of the lift cylinders. Make sure you have GOOD proper blocking of some kind to hold it up once you get it lifted and make sure the machine can't roll, we all take chances but no machine is worth getting crushed under a falling arm, injured or maybe killed.
Thanks for the feedback. We will start by building something to keep the arm up before making a second attempt. We think the hose on the other machine was already a bit rotten so we replaced anything that seemed suspicious. Since I registered, I am being asked to pass long this question to you all: Again, thanks for the feedback.
One common way to block things up is to cut some stout angle iron, one for each lift cylinder the same length, lay them on top of the cylinder rods and make sure there's something on the outer end for the angle to push against securely, while the back end sets against the rod gland on the cylinder. With the weight on them there should be no way for them to kick out. You can also split round pipe or rectangular tubing to fit over the cylinder rod.