Hey there, folks! I'm a supplier of the Loader Liugong 856, and today I wanna share with you how to adjust the relief valve in its hydraulic system. It's super important to get this right, 'cause it can really affect the performance and safety of your loader.
First off, let's talk about what a relief valve does. In a nutshell, it's like a safety guard for your hydraulic system. It keeps the pressure within a safe range. If the pressure gets too high, the relief valve opens up and lets some of the fluid escape, preventing damage to the system.
Now, before you start adjusting the relief valve, you gotta make sure you're in a safe environment. Turn off the loader and let it cool down. You don't wanna get burned by hot hydraulic fluid, right? Also, wear some protective gear like gloves and safety glasses.
The first step is to locate the relief valve. In the Liugong 856, it's usually near the hydraulic pump or the control valve block. It might be a bit tricky to find, but if you look at the hydraulic system diagram that comes with the loader, you should be able to spot it.
Once you've found the relief valve, you'll see an adjustment screw. This is what you'll use to change the pressure setting. But here's the thing: you can't just start turning it willy - nilly. You need to have a pressure gauge connected to the system. This gauge will tell you the current pressure and help you adjust it to the right level.
Connect the pressure gauge to a suitable port in the hydraulic system. Make sure it's connected tightly so there are no leaks. Then, start the loader and let it run for a few minutes to warm up the hydraulic fluid. This is important 'cause the viscosity of the fluid can affect the pressure reading.
Next, slowly turn the adjustment screw on the relief valve. If you turn it clockwise, the pressure will increase. If you turn it counter - clockwise, the pressure will decrease. Keep an eye on the pressure gauge while you're doing this. You wanna adjust the pressure to the specifications recommended by Liugong. The recommended pressure can usually be found in the loader's manual.
It's a good idea to make small adjustments at a time. Don't try to make a big change all at once. After each small adjustment, wait for a few seconds to let the pressure stabilize and then check the gauge again. This way, you can make sure you're getting the pressure just right.
As you're adjusting the relief valve, you might notice some changes in the loader's performance. For example, if the pressure is too low, the loader might not be able to lift heavy loads as easily. If the pressure is too high, it can put extra stress on the hydraulic components and lead to premature wear and tear.
Once you've adjusted the pressure to the correct level, lock the adjustment screw in place. There's usually a lock nut on the screw. Tighten this lock nut to prevent the screw from turning accidentally and changing the pressure setting.
After you're done adjusting the relief valve, double - check all the connections. Make sure the pressure gauge is removed properly and there are no loose hoses or fittings. Then, run the loader for a while and see how it performs. If everything seems okay, you've successfully adjusted the relief valve.
Now, if you're in the market for other Liugong loaders, we've got some great options. Check out the Liugong890H Wheel Loader. It's a powerful machine with excellent performance. And if you're looking for a used loader, the LiuGong 5tons Used Wheel Loader in Good Conditon is a great choice. Also, we have the Used Liugong870H Wheel Loader in Good Condition For Sale.
If you're interested in any of these loaders or have more questions about the Liugong 856 or its hydraulic system, don't hesitate to contact us for a purchase negotiation. We're here to help you get the best equipment for your needs.
References:
- Liugong 856 Loader Operator's Manual
- Hydraulic System Basics Handbook
