Coats Tire Machine Service Manual Written By Charles Prourting68 Saturday, December 4, 2021 Add Comment Edit PAGE 1 ® 4050A Tire Changer For servicing single piece automotive and most light truck tire/wheel assemblies Safety Instructions Operating Instructions Installation Instructions Maintenance Instructions READ these instructions before placing unit in service KEEP these and other materials delivered with the unit in a binder near the machine for ease of reference by supervisors and operators. 1601 J. P. Hennessy Drive, LaVergne, TN USA 37086-3565 615/641-7533 800/688-6359 HENNESSY INDUSTRIES INC. PAGE 2 Table of Contents Operator Protective Equipment Definitions of Hazard Levels ................................1 Owner's Responsibility ........................................1 Principal Operating Parts .....................................2 Operating Instructions .........................................3 Bead Loosening and Demounting ................3 Mounting .........................................................5 Inflation .................................................................. PAGE 3 Definitions of Hazard Levels Identify the hazard levels used in this manual with the following definitions and signal words: DANGER Watch for this symbol: ! DANGER It Means: Immediate hazards which will result in severe personal injury or death. WARNING Watch for this symbol: ! WARNING It Means: Hazards or unsafe practices which could result in severe personal injury or death. PAGE 4 Principal Operating Parts Know Your Unit Compare this illustration with the unit before placing it into service. Maximum performance and safety will be obtained only when all persons using the unit are fully trained in its parts and operation. Each user should learn the function and location of all controls. Prevent accidents and injuries by ensuring the unit is properly installed, operated, and maintained. 1 Center Post 2 Center Post Key — Rotates combination tool for mounting and demounting operations. PAGE 5 Operating Instructions The unit must be properly operated and properly maintained to help avoid accidents that could damage the unit and injure the operator or bystanders. This section of the Operating Instructions manual review basic operations and use of controls. These instructions should be reviewed with all employees before they are allowed to work with the machine. Keep these instructions near the machine for easy reference. 4. Thread centering cone clockwise onto the center post. PAGE 6 7. Once the tire beads have been loosened from the bead seat of the wheel, lubricate the beads liberally with rubber lubricant (fig.5). Note: Rubber lubricant makes demounting easier, helps eliminate damage to the tire beads, and assists the movement of the combination tool. 10. Press down on the foot pedal. The counterclockwise rotation of the center post key and combination tool will remove the upper tire bead from the rim. PAGE 7 Mounting This information must be read and followed carefully to prevent accidents and injuries during mounting. Ensure the tire bead diameter stamped on the tire to be mounted exactly matches the rim diameter stamped on the wheel. Consult the Rubber Manufacturer's Association charts for approved rim widths and recommended tire sizes. Mis-matched tires and wheels explode. PAGE 8 Inflation Tire inflation is performed in three steps: Bead Seal, Bead Seat and Inflation. These steps are explained in detail on page 10. Read the explanation of each step and understand them thoroughly before proceeding. Bead Sealing 1. Connect the inflation hose to the tire valve stem. 2. Lift tire so that the upper bead is against the edge of the rim to create a seal. Be sure the upper bead is over the bottom of the valve stem (figure 14). Check for proper inflation gauge operation. PAGE 9 Check tire pressure frequently. Never exceed 40 PSI while seating beads. Once seated, never exceed tire manufacturer's recommended air pressure. Tires can explode, especially if they are inflated beyond their limits. At all pressure levels when inflating through the valve stem, keep hands, arms, and entire body away from inflating tire. An exploding tire, wheel, or bead sealing equipment may propel upward and outward with sufficient force to cause serious injury or death to operator or bystander. PAGE 10 Performance Tires/Custom Wheels Before You Begin - Pre-Operation Notes Only tire technicians with training on custom wheels should attempt to service expensive custom alloy or aluminum wheels and high performance low-profile tires. • Ensure all weights have been removed from the wheel before servicing. • Assistance will be required on wide wheels. • Use ample lubricant during mounting and demounting operations. • Always review wheel nicks and/or scratches with the owner before servicing. 1. PAGE 11 Custom and Special Wheels Tube-Type Tires Alloy Wheels Some manufacturers offer wheels with little or no drop center. These are not DOT approved. The tire or wheel - or both - can be damaged and the tire could explode under pressure, resulting in serious in jury or death. If you attempt to mount/demount this type of wheel, use extreme caution. Mounting 1. Avoid pinching or forcing the tube. 2. Apply rubber lubricant to the beads of the tire. 3. Mount the bottom bead. 4. PAGE 12 Stages of Inflation 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 (machines equipped with Air Blast) 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 tire during bead sealing. The tire will contain about 1/2 to 2 PSI when bead seal is obtained. PAGE 13 Maintenance Instructions Read and follow all the maintenance instructions provided in this manual to keep the machine in good operating condition. Refer to the other materials received with the unit and to the service bulletins from the manufacturer for additional instructions on proper maintenance and service. Regular inspections and proper maintenance are essential to preventing accidents and injuries. PAGE 14 Lower Shoe Setting Check the lower shoe setting periodically to make sure that it operates properly and does not contact the wheels. 1. Place a 15" steel wheel on the machine and secure with the centering cone. NOTE: Make sure the wheel is centered. 2. Depress the foot pedal and run the lower shoe up to 45 degrees above the radius of the lower rim flange. Refer to figure 29. These instructions will help you service the unit. Instructions are for a person with some mechanical ability and training. PAGE 15 Installation Instructions Proper unit installation is necessary for safe use and efficient operation. Proper installation also helps protect the unit from damage and makes service easier. Always place safety poster and instructions near the unit. ! CAUTION Location Select a location using the drawings below. The area should provide the operator with enough space to use the equipment in a safe manner. PAGE 16 ONE WORD FOR SAFETY R.I.M. READ INSPECT MOUNT READ… INSPECT… MOUNT… Mounting and inflating the wrong size tire can get you hurt. Read the size on the tire and make sure it matches the rim. Be especially careful about putting a smaller tire on a larger rim, such as a 16-inch tire on a 16.5-inch rim. Before you put any tire on a rim, inspect the rim for rust, tough spots, bent edges, or cracks that could prevent the tire from seating right. Coats Tire Machine Service Manual Source: https://www.manualshelf.com/manual/coats/4050a-tire-changer/manual-english.html Share this post
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