DYISLAND About the hydraulic brake how to change oil

Contact Information 🌐 For more information, please visit DYISLAND official website: https://dy-island.com/ 📩 Contact us: [email protected] 📦 Buy now:https://dy-island.com/products/dyilan... Step 1: Disassemble the lever and pour out the excess oil. Step 2: Inject mineral oil into the lever.Put the needle into the bottom of the lever and inject it  slowly. Pull out the needle when the oil is full. If you operate in this way,there will be no air in it. *Be sure to put the caliper away and don’t let the oil out of the caliper. Step 3: Remove the screw from the caliper then let the oil flow empty inside. Step 4: Remove the needle,replace it with another one,insert the syringe into the position of the screw you just removed and lock it with a 8mm wrench. *Put a gasket in the caliper with a thickness similar to that of the disc.( To prevent excessive injection of oil.) Step 5: Put the other side of the hose into the bottle,and then pump the needle to let the oil flow into the syringe. Step 6: You may also notice air bubbles in the bottle. Repeat the action in the video to drain the air. Step 7: After almost emptying the air in the syringe, you can be ready to put the lever back. Before installing the lever, you need to press the syringe again until the oil is dripped out, and then you can install the lever. Step 8: After installing the handle, pull the syringe repeatedly. When no more air bubbles appear, remove the syringe with a wrench and install the previously removed screw back. Depress the brake lever a few times. The action should feel stiff and not spongy.Wipe the lever,caliper and hose with a lint free towel.     Don't let the oil touch the brake disc during the filling process.