4070 ® Tire Changer For servicing single piece automotive and most light truck tire/wheel assemblies. Safety Set-up Operation Maintenance Instructions Instructions Instructions 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 www.ammcoats.com HENNESSY INDUSTRIES INC.
Tire Specifications Diagram Radial Rim diameter code Ratio of height to width (aspect ratio) RA AL DI DOT MA 3 5P SI MAX. PRESS. D OA BS 00L 13 AL EW L2 S 2XXXXX CORD PLIE WEAR 22 EAD TR MA X. L 0 TR A C T IO N M TE SID RE A ATU R PE M L9 A BC 03 6 Severe snow conditions PLIES 2XXXXX CO RD A Treadwear, traction and temperature grades ii • ELESS TUB MANUFACT U R TIRE N P D4 EA TR Max. permissible inflation pressure E 65R15 95H / 5 21 +S AM Passenger car tire U.S.
Safety Instructions Owner’s Responsibility To maintain machine and user safety, the responsibility of the owner is to read and follow these instructions: • Follow all installation instructions. • Make sure installation conforms to all applicable Local, State, and Federal Codes, Rules, and Regulations; such as State, Federal OSHA Regulations and Electrical Codes. • Carefully check the unit for correct initial function. • Read and follow the safety instructions.
Safety Notices and Decals Remember R.I.M. WARNING Failure to follow danger, warning, and caution instructions may lead to serious personal injury or death to operator or bystander or damage to property. Do not operate this machine until you read and understand all the dangers, warnings and cautions in this manual. For additional copies of either, or further information, contact: Hennessy Industries, Inc. 1601 JP Hennessy Drive LaVergne, TN 37086-3565 (615) 641-7533 or (800) 688-6359 www.ammcoats.
Table of Contents Tire Specifications Diagram..................................... ii Custom and Special Wheels .................................. 15 Safety Instructions .................................................. iii Tube Type Tires ........................................................ 16 Owner’s Responsibility............................................ iii Maintenance Instructions ............................... 16 - 18 Operator Protective Equipment ...............................
Principal Operating Parts Do It Now! Now is a good time to contact product service to start warranty, otherwise warranty starts at time of shipment. CAUTION 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.
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.
6. Place the upper bead loosener shoe on the tire next to, but not on, the rim (fig. 4). Press down on the foot pedal until both bead looseners complete their full stroke. If the top bead is not completely loosened, release the foot pedal until the unit has completed the full return stroke and press the foot pedal again. The ratchet effect on the loosener will deliver a deeper stroke. The repeat cycle is used only if the upper bead is not loosened.
REMEMBER: Refer to the Tube Type Tire section of this manual before servicing tires with tubes. DANGER Fast or jerky movement of the bead loosener shoes or the combination tool indicates low cylinder oil level, and may result in throwing or disengaging of the tool, possibly causing serious injury or death to operator or bystander. Do not operate until it has been returned to proper operating condition. See the Maintenance section of this manual for further instructions on maintenance and adjustment.
Tire Mounting This information must be read and followed carefully to prevent accidents and injuries during mounting. WARNING Check tire and wheel carefully before mounting. Make sure the tire bead diameter and wheel diameter match exactly. Consult the Rubber Manufacturer’s Association for approved rim widths for tire sizes. Mismatched tires and wheels explode.
6. Mount the upper bead in the same manner (figure 12). Repeat steps 2, 3, 4, and 5. Figure 12 - Mounting Upper Bead WARNING Do not force the tire onto the rim. Bead damage could result making the tire unsafe and/ or creating the risk of injury in mounting operations. When you have completed the mounting process, proceed to Inflation, page 8. Important: Always read and follow operating instructions.
Inflation Tire inflation is performed in three steps: Bead Seal, Bead Seat and Inflation. These steps are explained in detail on page 12. Read the explanation of each step and understand them thoroughly before proceeding. CAUTION Check for proper inflation gauge operation. Accurate pressure readings are important to safe tire inflation. Refer to the Operating Maintenance section of this manual for instructions. DANGER Tire failure under pressure is hazardous.
Bead Sealing Bead Seating 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). WARNING Operator should keep hands, arms, and entire body away from the tire and wheel during the remaining Bead Seat and Inflation procedures. Do not stand over tire, as personal injury could result. WARNING Figure 14 - Bead Sealing 3.
3. Inject frequent, short bursts of air into the tire by pressing the Air-Flate pedal to position 2 and releasing. Continue the bursts until the beads move outward into their bead seat position. Check the pressure frequently. If beads do not seat, a problem exists. Investigate carefully and correct the problem. Inflation DANGER NEVER exceed tire manufacturer‘s recommended air pressure. Tires can explode, especially if inflated beyond these limits.
DANGER Explosion Hazard Never exceed 40 PSI while seating beads. If you use more than 40 PSI always use safety cage. Remember R.I.M. (see page iv and back cover) Important: Always read and follow operating instructions. DANGER Explosion Hazard Never inflate tire above manufacturer’s recommended pressure after bead is seated.
Stages of Inflation on a Conventional Tire and Rim 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 Bead sealing is the process of capturing air pressure between the tire and the rim. The tire will usually contain about 1/2 to 2 PSI at initial bead seal.
Mismatched Tires and Wheels Never mount and inflate mis-matched tires and wheels. DANGER Mismatched tire and wheel combinations will explode, if you attempt to force a bead seat, causing personal injury or death to operator and/or bystanders. Important: Always read and follow operating instructions.
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. 3. For mounting and demounting tires on wheels from 10” to 14” wide, use the optional short center post extension (part #8108311). Slip the extension over the center post key (figure 19). • Ensure all weights have been removed from the wheel before servicing.
6. Use the plastic combination tool boots supplied with the optional Speed Mag adapter to prevent scratching of custom wheels (figure 22). Boots may be ordered separately (part#8106568, 10 pairs). Custom and Special Wheels CAUTION Only tire technicians with experience and training on custom wheels should attempt to service expensive custom alloy or aluminum wheels and high-performance lowprofile tires.
Tube Type Tires Mounting 1. Avoid pinching or forcing the tube. 2. Apply rubber lubricant to the beads of the tire. 3. Mount the bottom bead. 4. Round out the tube with a small amount of air. 5. Apply rubber lubricant to the tube. 6. Insert the tube into the tire. Read and follow all the maintenance instructions provided in this manual to keep the machine in good operating condition.
Pressure Gauge Maintenance and Calibra- Lower Shoe Setting tion Check the lower shoe setting periodically to make Check the tire pressure gauge function on the unit daily, and perform an accuracy check monthly. Use a pressurized tire and a high quality stick pressure gauge. If necessary, calibrate the dial of the machine gauge. 1. Pressurize a large 15” tire to 30 PSI and measure the pressure exactly with a high quality extension type tire gauge. Connect the air chuck to the tire. 2.
Setup Instructions Routine Maintenance A. Keep work surface clean. Pay special attention to the top of the machine. B. Clean and wipe down the machine on a regular basis. C. Clean the gauge lens frequently with glass cleaner. D. Make sure all fasteners are tightened securely. E. Make certain that all guards and covers are in place. F. Check for worn, damaged, or missing parts (including grips, warnings, instructions, and protective covers). Replace before allowing unit to be used. G.
Important: Always read and follow operating instructions.
ONE WORD FOR SAFETY R.I.M. READ INSPECT MOUNT READ… 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. Inflation of a mismatched tire and rim can cause an explosion. INSPECT… 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.
