Issue link: http://read.dmtmag.com/i/34501
DEMOUNTING TUBE-TYPE TIRES Any inflated tire mounted on a rim contains explosive energy. The use of damaged, mismatched, or improperly assembled tire/rim parts can cause the assembly to burst apart with explosive force. If you are struck by an exploding tire, rim part, or the air blast, you can be seriously injured or killed. Do not attempt to dismount the tire while the assembly is still installed on the vehicle. Use proper tools to demount or mount rim parts. Never use a steel hammer to seat rim parts – use only rubber, plastic, or brass-tipped mallets. Striking a wheel/rim assembly with a hammer of any type can damage the tire or wheel and endanger the installer. Use a steel duck bill hammer only as a wedge. Do not strike the head of a hammer with another hard-faced hammer – use a rim mallet. Before loosening any nuts securing the tire and rim assembly to the vehicle, remove the valve core and deflate completely. If working on a dual assembly, completely deflate both tires. Run a wire or pipe cleaner through the valve stem to ensure complete deflation. This is to prevent a possible accident. 1 Remove the tire and rim assembly from the vehicle 2 and place on the floor with the side ring up. Rim Tools Run a wire or pipe cleaner through the valve stem 3 to clear the valve stem. 4 Apply lubricant to all surfaces of the bead area of the tire. Use the duck bill hammer, with the rubber rim mallet as a wedge, or a slide hammer. 96 Section Seven: Diagonal (Bias or Cross) Ply and Tube-Type