It is easier to make the tire expand from the inside out when disassembling, but if the tire is too hard or the quality of the tire disassembling machine is average, it is likely to cause an accident and scratch the steel ring.
In addition, if the lower claw of the tire scraper does not keep a sufficient safe distance from the rim of the hub, and the tire is not peeled off at every position on the hub, or the machine used is not good, not a pneumatically locked machine, the possibility of scratching the steel ring is also great. ,
It is recommended to deal with the general iron wheel hub. If the tire is soft, it can be expanded inside and outside. It's much safer to open the claws first and clip them from the outside to the inside.
Extended data:
Dismantling method of tire dismounting machine without scraping steel ring
1. Remove the tire lip and install the tire on the right side of tire disassembly analysis. The tire leans against the rubber support plate, and the disassembly shovel is pressed on the tire lip, which is about 1cm away from the rim edge. Step on the right pedal, remove the shovel, and repeat the above actions on both sides of the tire until the tire lips are completely separated.
2. Put the tire on the chuck of the tire remover, and apply grease or similar lubricant to the tire lip (to prevent tire wear).
3. Step on the middle pedal, jam the rim, and lock the tire according to the specified size in the following ways.
4. After confirming that the rim is fastened, put down the pressure bar, make the tire lip dismounting head lean against the upper edge of the rim, turn the locking handle, and lock the horizontal weight straight arm, so that the dismounting head automatically leaves the rim by about 2mm. Insert the crowbar into the front end of the tire lip disassembly head, and peel off the outer tire lip with the crowbar.
5. Keep the crowbar in the same position, step on the left pedal, turn the chuck clockwise until the tire is completely separated from the rim, and then lift the tire upward. Completely separate the tire lip on the other side from the rim in the same way; Take out the tire.
6. Take out the inner tube and lift the tire upward to separate the other side from the outer rim.
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