Before breaking the bead, make sure you remove the valve core to completely deflate the tyre.
Lube the tyre, place the blade between the lip of the rim and the tyre. Make sure the bead breaker does not touch the rim. Depress the bead breaker pedal. Repeat process to break the bead on the back side of the tyre.
Clamp the tyre to the table, carefully position the mount/ demount head against the rim. Lock into position. Positioning screw is adjusted to secure correct swing arm position.
Pull the top bead over the mount/demount head. Place the mount/demount head against the rim. Plastic inserts under metal head prevents wheel damage. Place a tyre tool between the tyre and mount/demount head. *Do not put the tyre tool on the rim* Exert pressure to the top of the tyre tool to pull the bead over the mount/demount head. Then press the table rotation foot pedal rotating the turntable clockwise. The tyre tool must rest on the mount/demount head, never on the rim.
When using a tyre changer with an assist arm, place the lifting disc underneath the tyre, lift it until the bottom bead hits the lip of the rim. Assist arm is needed for stiff sidewall and low profile tyres. When the tyre is in lifted position, manually lift the right side of the tyre until the bottom bead hits the lip of the rim. If using a tyre changer without an assist arm, manually lift the lower tyre bead to the mount/demount head.
When the tyre is in lifted position, place the tyre tool in between the mount/demount head and tyre bead. Once the tyre tool is in position, depress the table rotation foot pedal turning the table clockwise to demount the tyre.
Lube helps to prevent bead damage, and also helps seal the bead to the rim. Lube the tyre on both sides and all the way around liberally before mounting any tyre.
When mounting the tyre on the rim, always rotate the table clockwise. Move the tyre so that the bead passes below the front section of the mounting head and is brought up against the edge of the rear section of the mounting head. Keep the tyre bead pressed down into the wheel rim channel with your hands. The mount/demount head will force the bead of the tyre under the lip of the rim. Once the bead of the tyre is under the mount/demount head, place the assist arm on the tyre as shown to keep the tyre bead pressed down into the wheel rim channel. If your machine is not equipped with an assist arm, use your hands to exert pressure. (Be careful!)
Attach the inflation hose to the valve stem without the valve core installed. Ensure that the rim is still clamped to the table. Press all the way down on the air inflation pedal to initiate the bead blaster, while pulling up on the tyre, to hold the top and bottom bead in place. Jaws should be in position and rim should still be clamped. Air flows through the hose when the inflation pedal is slightly depressed and keeps air flowing after the bead is seated. Once the tyre is inflated, remove the pressure hose and unclamp the rim. Inflate the tyre only to the recommended air pressure.
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