The Top Tips for

Tyre Changing

Workshop Equipment Catalogue 1 www.integratedmarketing.co.za | 012 664 3445 | [email protected] A tyre changer is a machine used to help tyre technicians dismount and mount tyres with automobile . After the and tyre assembly are removed from the automobile, the tyre changer has all the components necessary to remove and replace the tyre from the wheel.

What is the difference between semi-automatic Tyre changer and fully automatic tyre machine?

There are 2 main types of tyre changer for passenger vehicles (ignoring the manual types), fully automatic and semi-automatic. Although both types of tyre changers are operated by electric motors the way that the demount head is set in position for tyre removal is the difference. On a semi-automatic tyre changer, the mounting head is set in place using a locking screw and handle. The mounting head is on an arm that hinges at the top of the back column and allows the arm and mounting head to be swung over to the right to clear the tyre and allow you to remove it from the table.

There is nothing wrong with semi-automatic tyre changers. They are simple and easy to use, the only drawback to a semi-automatic tyre machine comes when speed is an issue. It takes slightly longer than a fully Automatic tyre changer to set up. If however, you are only changing a minimal amount of tyres, then the more cost effective semi-automatic machine would be ideal. A good example of a semi- automatic tyre changer is the Bright LC810 or the LC890S.

On a fully automatic tyre changer, there is no difference in the way the turntable and operate. It is the difference in set up of the mounting head that defines the difference in the two machines. Instead of locking into place manually and being on a hinge, the locking of the mounting head is controlled by compressed air. The operator manoeuvres the mounting head into place and then, with a single click of the button, pneumatically controlled locking plates ensure the mounting head is frozen in position both horizontally and vertically. The whole arm, including the mounting head is then moved by a press of the pedal, allowing the arm to tilt backwards and forwards. This is why fully automatic machines are often referred to as tilt back tyre changers. Again, a good example of a fully automatic tyre changer is the Bright LC885N or the Jaguar.

Do I need an Assist Arm?

No you don’t NEED an assist arm. Will it help fit run flat or low profile tyres… yes, that is what it is designed to do but it is not fair to say you have to have an assist arm. If only 1 out of 200 tyres you do is a run flat then you’ll need to consider the difference in price between machines with and without an assist arm.

If 90% of your business is run flat tyres then you should be looking at a machine designed for this type of wheel tyre combination or it will be tough going.

2 Integrated Marketing Credit: www.derekweaver.com | www.jmcautomotiveequipment.com tyre changers are less complicated than passenger and light truck changers because they deal with lighter and smaller tyres and wheels. Their setup is a lot simpler and they usually have simple bead loosening system and clamps powered manually. Usually, this tyre changer only exists in motorcycle repair shops, but if you think you can expand your business by acquiring it, definitely do so. However, you might have to expand to do other jobs for , which will be a good problem to have. Check out the Bright M806 motorcycle tyre changer.

Compared to the motorcycle tyre changer, the heavy duty or truck tyre changer is a monster. These changers usually have to deal with heavy duty tyres that may go up to 91 inches in diameter and 43 inches wide. Be careful when choosing a heavy duty tyre changer, some are made especially for agricultural, off-road and constructional vehicles and other are designed especially for businesses that maintain a fleet of vehicles. If you are considering a truck tyre changer take a look at the Bright LC558s, LC590D or TR23 models.

Principles of Tyre Changing - Mounting and Demounting Tyres on Rims

Tyre Changing Safety

Before attempting to remove and mount tyres on rims, there are important safety precautions to know. Serious personal injury can result if proper caution is not observed. Tyres can explode if attention to certain details go overlooked.

* Always be sure the tyre is of the specified size and construction for the rating of the wheel.

* Check that the wheel diameter matches the diameter molded on the tyre sidewall.

* Never exceed 40 PSI when seating tyre beads.

* Never inflate a tyre above tyre manufacturer’s recommended pressure after beads are seated. Tyre problems such as leaks and vibrations can sometimes be traced to improperly mounted tyres.

Operators Protective Gear and Equipment

Personal protective equipment helps make tyre changing safer. However, equipment does not take the place of safe operating practices. Always wear durable work clothing during tyre service activity. Shop aprons or shop coats may also be worn, however loose fitting clothing should be avoided. Tight fitting leather/mechanics gloves are recommended to protect the operator’s hands when handling worn tyres and wheels. Sturdy leather work shoes with steel toes and oil resistant soles should be used by tyre service personnel to help prevent injury in typical shop activities. Eye protection is essential during tyre service activity.

The Top Tips for Wheel Balancing 3 Safety glasses with side shields, goggles, or face shields are acceptable. Back belts provide support during lifting activities and are also helpful in providing operator protection. Consideration should also be given to the use of hearing protection if tyre service activity is performed in an enclosed area, or if noise levels are high.

Tyre Changer Equipment Operator Safety - Owner’s Responsibility

Tyre changers come with very detailed and easy to understand instruction manuals. Read and understand your tyre changer’s owners/operators manual completely before using the machine. These manuals assume that the operator has used a tyre changer before. If this is your first tyre changer purchase/ experience and you have not operated a tyre changer, it is strongly recommended to have a person/trainer who is familiar with this style of tyre changer train you in the operation. Some tyre changers may appear very similar to many other tyre changers on the market but may operate differently. The distributor that sold the machine will be glad to give you a training session at their location or guide you to someone who can provide a service call to your location for training (a service charge would apply). The distributor also offers telephone technical support and troubleshooting suggestions as needed. This does not take away from the responsibility you have to read and understand the complete manual. This responsibility is no different than when you purchase an automobile. The automobile dealer assumes you know how to operate and drive a motor vehicle. Safe operation is your responsibility and the dealer assumes you know how. Seek training as needed.

Deflating the Tyre

Before removing the tyre from the wheel, use a valve core removal tool to remove the tyre valve core and deflate the tyre completely. If the tyre is to be patched and reinstalled without balancing, be sure to mark the locations of the and any wheel weights with a marking crayon. If another tyre is to be installed on the wheel, remove any wheel weights from the wheel first.

Never attempt to break down the beads of an inflated or partially inflated tyre.

Breaking the Beads

To remove the tyre from the wheel, both of the tyre beads need to be unseated from the bead seats on the wheel. This is called “breaking the beads”. The bead breaker is located on the right side of the tyre changer and is operated by foot pedal. The tyre is rolled in between the bead breaker arm and the padded side of the machine. The bead breaker blade is placed on the tyre bead and slightly off of the wheel lip as to not make contact with the wheel rim. The pedal is activated to break the bead away from the wheel. Keep hands and legs away from moving parts. The wheel is turned around to break the bead on the other side of the tyre. The tyre may be

4 Integrated Marketing Credit: www.derekweaver.com | www.jmcautomotiveequipment.com moved to break other areas on the tyre until the beads are completely detached from the wheel.

Plastic protectors are used on the bead breaker blade to prevent scratching the wheel as the blade slides by the wheel.

Motorcycle Tyre Bead

Care is taken to locate the valve stem to the opposite side of the bead breaker to avoid damage to tyre valve stem that may have a tyre pressure monitor system (TPMS) installed. Tyre Pressure Monitoring System Sensor

Safety First - Do Not attempt to unseat the beads of an inflated tyre. Do Not strike the tyre or wheel with a hammer. Something is wrong if you need a hammer. When removing a tyre from a rim, never let go of the tyre iron. It can flip up and hit you.

Clamping the Wheel on the Turntable

Before placing the wheel with the detached tyre on the clamping table, lubricate both beads. There are two methods for clamping a wheel on the turntable.

Inside Clamping will clamp the wheel from the inside of the wheel. The clamps are positioned close together and the wheel is then placed over the clamps. The foot pedal is activated to clamp the wheel from the inside out. The clamps will expand outward and securely lock the wheel in a centered position.

Outside Clamping will clamp the wheel from the outside flange of the wheel’s rim. The clamps are first expanded to the outward position and will clamp from the outside in. The wheel is placed over the clamps and the tyre will rest on top of the clamps. While viewing the clamp position from underneath wheel, close the clamps inward onto the wheel by depressing the foot pedal. The wheel may need to be pushed downward into the open jaws of the clamps. Tyre changers equipped with an assist arm can be used to push the wheel down into position while activating the clamps. The clamps will securely lock the wheel in a centered position.

Wheel Clamps

Wheel Clamps Positioned for Inside Clamping

Plastic protectors are used on the clamping jaws to protect the wheel’s finish.

Note: The clamping range of a tyre changer may sometimes be confused with the wheel diameter because the range is shown in actual inches. Wheel diameters may require more or less distance to be clamped because of the varied thickness of many wheel flanges. Not all 20” wheels are made the same.

The Top Tips for Wheel Balancing 5 Wheel Diameter Flange

Rim Diameter plus Flange Height = Outside Clamp Range Needed

Demounting - Removing the Tyre from the Wheel

Once the wheel has been clamped onto the turntable, the hex shaft may be lowered to bring the mount/demount head (aka - Duckhead) to the rim’s edge. The duckhead will rest on the outside of the flange and on the top of the wheel. The hex bar is then locked and will automatically be retracted vertically away from the wheel surface about 1/16th” or 2 mm to prevent touching the wheel while demounting/mounting. Swing arm style changers also have a large screw to move the mount head horizontally about 1/16th” or 2 mm away from the wheel flange. Most modern steel duckheads have plastic inserts to protect the rim should the head come in contact with the wheel during the mounting process.

Position Demounting Mounting Tyre

Duckhead in Correct Position for Demounting/Mounting the Tyre.

Once the duckhead is in place, the upper bead can be pulled over the edge of the rim and duckhead with the tyre iron only after the bead on the bottom opposite side of the tyre is forced into the wheel’s drop center.

Tyre Tool

Tyre Tool is inserted over duckhead and under tyre bead.

Tyre Changer Tool

Tyre Tool is used to lift bead over the demount side of duckhead with opposite side bead in drop center.

Be careful not to tear the bead or the tyre will be ruined. If the bead gets stuck or binds be sure to apply enough lube to the bead. Also double-check the that the lower bead is in the drop center of the wheel 180 degrees from the duckhead.

Wheel Drop Center

Both Beads are in the Drop Center of the Wheel while the Bead is pulled over the edge on the opposite side of the Rim.

First the upper bead is pulled over the outside of the rim, followed by the lower bead. Never try to remove both beads at the same time. When the upper bead is over the duckhead, the foot pedal is activated to rotate the turntable clockwise. The

6 Integrated Marketing Credit: www.derekweaver.com | www.jmcautomotiveequipment.com tyre iron is held in place and will ride the tyre clockwise until enough slack in the tyre allows the tool to be removed. The demount head will guide the upper bead up and over the edge of the wheel. Push down on the tyre across from the demount head while the turntable is in rotation to utilize the drop center area of the wheel. This reduces the tensional force on the top bead or first bead during demount. The process is repeated for the lower bead and the tyre is removed from the wheel. By moving the hex bar and demount head away from the wheel the tyre can be taken away from the wheel and tyre changer.

A tyre that is in a bind can be unjammed by lifting the pedal up to reverse the turntable counter clockwise until the jam is cleared. At times during the mounting and demounting procedure, the bead lifting tool may encounter resistance or come under load. Keep one hand firmly on the tool to avoid possible tool disconnect. Use the reversing feature to back out of jams. In the process of demounting tyre, you should keep your hands and the other parts of your body as well as clothing from the movable parts to prevent injury. Inspecting the Tyre and Wheel

After the tyre has been removed from the wheel, inspect the inside for cuts, carcass damage, penetrating objects, loose cords, dirt and liquid. Inspect the condition of each bead by pulling out on it in several places around its circumference. If the bead has any bends in the bead DO NOT mount the tyre. The bead wire could be broken. It is not worth taking a chance with someone’s safety.

Note - Never mount a tyre or wheel that is damaged. This could result in injury or death to the occupants of the vehicle. Liability could be held by the shop and/or technician in such a case.

Inspect the condition of the wheel for sharp edges, dents, cracks and other damage. Small dents in the wheel flange can sometimes be straightened. Larger dents need to be checked for radial and lateral runout with a dial indicator before it can be determined useable. Excessive runout can cause the car to shake at higher speeds. Rust can damage the bead seat on a wheel. If rust is on the surface only, it can be removed with a wire brush. If the bead seat is not smooth, the tyre will have a slow leak and the wheel will need to be replaced.

Valve Stem Service

Ordinary rubber valve stems are customarily replaced during tyre service or when new tyres are installed. The valve stem can also be replaced without removing the tyre from the wheel. This is done when an old valve stem becomes aged and cracked or starts to leak. Leaks can be found by prying the stem to the side and observing any air leakage.

The Top Tips for Wheel Balancing 7 Valve Stem

Old Valve Stem replaced with a New Valve Stem

To remove a valve stem, cut it off with a knife or force it through the hole in the wheel using a valve stem installing tool. Remember to install the valve stem before installing the tyre. To install the new valve stem, thread it into the installation tool, lubricate it with rubber lube and pull it into the hole. Be sure it is completely in the hole and is properly seated.

A new valve stem comes with a new valve core inside. Remove the valve core before attempting to inflate the tyre.

Radial tyre sidewalls are flexible and their tyre beads are designed with a close tolerance for a tight fit to the rim. During inflation, the beads are not easily forced into position. If the beads are not seated properly, the tyre can have an out-of- round condition when inflated that will make it difficult to balance. Lubricate both tyre beads with an appropriate lubricant. Good quality lube is slippery and fast drying. Also lube the bead seats on the rim with rubber lube.

Tyre Lubricant

Using lubes provides the following:

1) Reduces friction between the tyre beads and the edge of the rim during mounting/demounting.

2) It helps to seal around the bead during initial inflation of the tyre.

3) Friction between the bead seats and the tyre bead will be reduced when inflating the tyre. This is important so that the beads will be all of the way seated and the tyre tread will not be distorted. Remember - safety glasses should always be worn when inflating a tyre.

Observe the following cautions regarding lubricants:

1. Do not use petroleum products, which will damage the rubber in the tyre. 2. Lube should not be diluted with water, which can rust a steel wheel. 3. Do not use silicone lubricants or liquid soaps, which will allow the tyre to spin on the rim.

Mounting - Installing the Tyre

With the wheel clamped on the tyre changer turntable, place the lubricated tyre on the wheel and bring the hex bar with mounting head into place. Make sure

8 Integrated Marketing Credit: www.derekweaver.com | www.jmcautomotiveequipment.com the mounting head is located the proper distance (2mm) off of the wheel edge to prevent touching the rim. Place the lower bead of the tyre on top of the back side (ducktail) of the mounting head at an angle that puts the tyre bead between the duckhead and ducktail with the front of tyre below the duckhead. As the turntable is activated force the bead into the drop center of the wheel as it rotates. This is important! If one side of the bead is not in the drop center, the diagonal mounting distance will be excessive and the other side will not be able to be stretched over the flange. Be careful not to damage a tyre pressure monitor during bead installation. When the first bead is totally installed and positioned in the drop center of the wheel, install the top bead using the same procedure as the lower bead.

Tyre Mounting

The bead must be all the way past the edge of the narrow bead ledge or the diagonal mounting distance will not be sufficient to allow the bead to pass over the edge of the wheel.

Mounting Top Bead

Mounting Top Bead with opposite side in drop center below narrow bead ledge.

Notice bead at mounting head is below duckhead yet on top of ducktail.

Some tyres have a colored dot on their sidewall to indicate the high or low side of the tyre runout. Placing this dot in relation to the valve stem will depend on the certain manufacturer’s recommendation as all manufacturers do not use the same location to the valve stem.

Inflating the Tyre- CAUTION!!! Inflating the tyre can be the most dangerous part in the tyre demounting/mounting process.

It is important to follow the precautions and guidelines noted below: Check for proper inflation gauge operation. Accurate pressure readings are important to safe tyre inflation. If the rim has been clamped from the outside for tyre mounting, release the clamps, lift the tyre, and move the clamps to the center of the table top.

THE RIM MUST BE UNCLAMPED WHEN INFLATING BUT ONLY AFTER BEADS HAVE BEEN SEATED.

If the wheel/tyre has a diameter larger than 14 inches and is difficult to bead seal, the clamps should be moved to the center of the table top for the bead seal operation. Tyre failure under pressure is hazardous. The tyre changer is not intended to be a safety device to contain exploding tyres, tubes, wheels, or bead sealing equipment. Inspect tyre and wheel carefully for matched size, wear,

The Top Tips for Wheel Balancing 9 or defects before mounting. Always use approved tyre bead lubricant during mounting and inflation.

The inflation pedal, is typically located at the rear of the left side of the machine and controls the flow of air through the inflation hose.

NOTE: The clip-on chuck on the end of the hose should always be an open style with all parts in proper working order.

ATTENTION! WHEN OPERATING THE BEAD BLAST SEATER IT IS MANDATORY TO WEAR SAFETY GLASSES TO PROTECT EYES.

The Standard Inflation pedal operates in 3 positions as described below

(Check your specific machine’s manual as some may vary).

Position 1 (All the way up at rest) - Tyre Pressure –With the inflation hose attached to the tyre valve and the pedal in this position, the air gauge will register the air pressure in the tyre. Whenever your foot is removed from the pedal, it will return to this position.

Position 2 (Pushed down to the mid level) - Tyre Inflation – This is the first activated position. With the inflation hose attached to the tyre valve and the pedal in this position, line pressure is allowed to flow through the valve and into the tyre for inflation. Tyre pressure is not indicated on the gauge in this position. The pedal must be released to read pressure.

Position 3 (Pushed down all the way to lowest level) - Bead Sealing – This is the second and last activated position. With the inflation hose attached to the tyre valve and the pedal in this position, line pressure is allowed to flow through the valve and to the inflate bead seal jets on the table top for bead sealing.

Use Position 3 for bead sealing only. Do not use this position without a tyre and wheel positioned on the table top. Dirt and debris could be blown into the air with enough force to injure the operator or bystanders. Do not use this position to inflate a tyre.

When the inflation pedal is held in position 2, the pressure should be checked every few seconds to prevent over inflation. This cycling helps to prevent over inflation of the tyre. Tyres can still be over inflated and explode with the use of this technique and if all of the instructions in this guide are not followed completely. It is the operator’s responsibility to follow all instructions and to control inflation pressure as specified in these instructions. Tyres requiring inflation beyond 40 PSI should be inflated in a safety cage with a clip-on style air chuck. Never exceed recommended pressure after seating beads. Always keep hands and entyre body

10 Integrated Marketing Credit: www.derekweaver.com | www.jmcautomotiveequipment.com back from inflating tyre.

Tyre Inflation Cage

Tyre Inflation Safety Cage

Tyre inflation is performed in three steps: Bead Seal, Bead Seat, and Inflation.

Bead Sealing

1. Position valve stem in front of operator and connect the inflation hose. Hold tyre up against upper edge of the wheel. Be sure tyre’s top bead is over the bottom of the valve stem. 2. Depress inflation pedal to position 2 and hold about 1 second to begin air flow through tyre valve, then depress pedal to position 3 and hold briefly – less than 1 full second. The blast of air from the jets will expand tyre and seal the beads. 3. Release the inflation pedal and allow it to return to position 1. Verify that both beads are completely sealed to the wheel. Repeat these steps if beads have not sealed. It may be necessary to wait a few seconds for the air storage tank to recover before attempting again.

Note: If tyre and wheel are properly lubricated and operator cannot achieve bead seal after 3 or 4 attempts, the valve core may be removed from the valve stem to allow more air flow into the tyre to assist with bead seal. After bead seal is achieved, remove the chuck and reinstall the valve core.

Bead Seating Operator should keep hands, arms, and entyre body away from the tyre during the remaining bead seat and inflation procedures. Do not stand over tyre, as personal injury could result. Do not leave tools on the tyre sidewall when inflating tyre. NEVER increase air pressure to exceed 40 PSI when attempting Bead Seat. If operator is unable to obtain Bead Seat, something is wrong. Deflate tyre completely, inspect tyre and wheel, and correct any problems found, lubricate both tyre beads, and reattempt Bead Seal and Seat procedures.

Follow all safety instructions in this guide, on the machine and machines manual.

Once tyre pressure is indicated on the air gauge (inflation pedal in position 1; foot removed from pedal), continue to inject air into the tyre in short intervals. Check the pressure frequently. Stand back during bead seat. Keep hands, arms, and entyre body away from tyre during this procedure. Tyre beads should move outward and “pop” into their bead seat position as pressure inside the tyre increases. If this does not happen, a problem exists. Investigate carefully.

The Top Tips for Wheel Balancing 11 Check tyre pressure frequently. Never exceed 40 PSI while seating beads. Once seated, never exceed tyre manufacturer’s recommended air pressure. Tyres can explode, especially if they are inflated beyond their limits. At all pressure levels when inflating through the valve stem, keep hands, arms, and entyre body away from inflating tyre.

An exploding tyre, wheel, or bead sealing equipment may propel upward and outward with sufficient force to cause serious injury or death to operator or bystander.

Inflation NEVER exceed tyre manufacturer’s recommended air pressure. Tyres can explode, especially if inflated beyond these limits. Keep hands, arms, and entyre body back from inflating tyre. Avoid distraction during inflation. Check tyre pressure frequently to avoid over inflation. Excessive pressure can cause tyres to explode, causing serious injury or death to operator or bystander.

THE RIM MUST BE UNCLAMPED WHEN INFLATING BUT ONLY AFTER BEADS HAVE BEEN SEATED.

The machine is equipped with an inflation gauge for monitoring the inflation of the tyre and the inflation pressure.

1. Connect the inflation hose with the tyre air core. Make sure both beads are seated. When both beads are seated, the tyre is ready for inflation. 2. Replace the valve core if it was removed. 3. Depress the inflation pedal to position 2 to inflate the tyre. Release air pressure from tyre by pressing the manual release valve button (inflation hose must be attached to the valve stem).

STAGES OF INFLATION - Images Review these descriptions and diagrams carefully. Refer to them as necessary during bead sealing, bead seating, and inflation to verify that you are proceeding properly and safely.

Bead Sealing

A 140 PSI air blast from the table top jets creates an air curtain to aid in bead sealing. Never exceed 10 PSI in the tyre during bead sealing. The tyre will contain about 1/2 to 2 PSI when bead seal is obtained. Bead Seal Bead Seal - Hold the tyre against the top bead seat and use the bead blast air jets to seal the bottom bead.

Bead Seating

Bead seating usually occurs on the long tapered side of the wheel first and the shorter side last. Bead seating will usually require at least 7 PSI in the tyre. 40 PSI is the maximum safe pressure at this stage regardless of tyre operating pressure.

12 Integrated Marketing Credit: www.derekweaver.com | www.jmcautomotiveequipment.com Most European import cars and many aftermarket alloy wheels are very tight and can be difficult to bead seat. Also note that asymmetrical hump and run-flat tyres are extremely difficult to bead seat. Follow tyre manufacturer’s recommended procedure for bead seating. Usually last to “pop” is top side Do not stand over tyre during inflation. Requires visual confirmation of bead seat.Bead Seat Bead seating is confirmed when both beads have popped in place and are visually checked.

Inflation

After the beads are seated, the tyre is inflated. Do not inflate the tyre above the manufacturer’s recommended pressure as stamped on the tyre sidewall. The typical inflation pressure for automobile tyres is between 24 and 45 PSI. Light truck inflation pressure typically covers a wider range.

Do not stand over tyre during inflation. Requires lubricant on both upper and lower beads Air flow through valve requires about 140 PSI air pressure drop to insure sufficient flow on difficult tyres. Table top jets Lift tyre up to assist seal on top side.

DANGER! BEWARE!

MISMATCHED TYRES AND WHEELS Never attempt to mount and inflate mismatched tyres and wheels. Mismatched tyre and wheel combinations explode, causing personal injury or death to operator and bystanders. For safety, do not attempt to mount and inflate mismatched tyres and wheels.

Half Size Tyres 14.5, 15.5, 16.5, 17.5, etc.

MISMATCH

Even Size Wheels 14.0, 15.0, 16.0, 17.0, etc.

Even Size Tyres 14.0, 15.0, 16.0, 17.0, etc.

MISMATCH

Half Size Wheels 14.5, 15.5, 16.5, 17.5, etc.

READ… Mounting and inflating the wrong size tyre can get you hurt. Read the size on the tyre and make sure it matches the rim. Be especially careful about putting a smaller tyre on a larger rim, such as a 16-inch tyre on a 16.5-inch rim. Inflation of a mismatched tyre and rim can cause an explosion.

INSPECT… Before you put any tyre on a rim, inspect the rim for rust, tough spots, bent edges, or cracks that could prevent the tyre from seating right. If you spot

The Top Tips for Wheel Balancing 13 any of these problems, don’t mount the tyre until the rim has been checked by your shop foreman. Inspect the tyre for bead damage.

MOUNT… Once you’ve made sure the tyre is OK and the right size and the rim is OK, mount the tyre safely. NEVER, ever lean over the tyre when you’re inflating it. If a tyre does explode, it will go straight up. You don’t want to be over the tyre if that happens. Also, never over-inflate the tyre, even if the bead doesn’t seat. Never inflate over 40 PSI. If the tyre wasn’t seated, something is wrong. Deflate the tyre and check it and the rim again. If it doesn’t work the second time, try another tyre.

THE OWNER IS RESPONSIBLE FOR MAINTAINING THE OPERATION INSTRUCTIONS AND DECALS FOR HIS MACHINE AS WELL AS PROVIDING THEM TO ALL OPERATORS.

14 Integrated Marketing Credit: www.derekweaver.com | www.jmcautomotiveequipment.com How to change a tyre using a tyre changer Safety first! Make sure you are using the appropriate PPE, safety shoes, long pants, safety glasses, glove & ear protection.

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* Ex- ert 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 turn- ing 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.

The Top Tips for Wheel Balancing 15 Tyre changer equipment

available

TC800 M806 LC810 Econo swing arm Swing arm motorcycle tyre changer Swing arm tyre changer Max wheel width → 14” Rim width → 3” - 10” Rim width → 3” - 12” Inside clamping range → 12" - 22" Clamping range → 6" - 24" Clamping range → 12" - 21"

LC890S LC885N Jaguar Swing arm tyre changer Fully Automatic tyre changer Fully Automatic tyre changer Rim width → 3” - 12” Rim width → 3” - 13” Rim width → 3” - 15” Clamping range → 13" - 26" Clamping range → 12" - 24" Clamping range → 13" - 26" AL320 Runflat band removal tool XTC428 Optional helper arm Manual tyre changer (LC885N) Rim clamp outside → 6” - 19” Rim clamp inside → 10" - 22"

LC588S TR23 Truck tyre changer Truck tyre changer Rim diameter → 14” - 26” Max tyre diameter → 1300mm Max wheel diameter → 1600mm Max tyre width → 400mm

LC590D LC591 Truck/OTR tyre changer Truck/OTR tyre changer Rim diameter → 14” - 26” Rim diameter → 14” - 56” Max wheel diameter → 1600mm Max wheel diameter → 2300mm