COATS 7665 AX-EX Tire Changer User Manual

1601 J. P. Hennessy Drive, LaVergne, TN USA 37086-3565 615/641-7533 800/688-6359 Manual Part No.: 8183762 00 HENNESSY INDUSTRIES INC. Manufacturer of AMMCO

, COATS®and BADA®Automotive Service Equipment and Tools. Revision: 09/98

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.

7660 AX/EX 7665 AX/EX

Rim Clamp

Tire Changer

For servicing single piece automotive and most light truck tire/wheel assemblies

Table of Contents

Definitions of Hazard Levels ................................1

Owner’s Responsibility ........................................1

Principal Operating Parts .....................................2

Operating Instructions .........................................3

Bead Loosening and Demounting ....................3

Mounting ...........................................................6

Inflation ..................................................................7

Bead Sealing ....................................................7

Bead Seating ....................................................8

Inflation .............................................................8

Performance, Custom, and Aluminum Wheels ..9

Aluminum and Custom Wheels ........................9

Performance Tires and Wheels • Demounting .9

Performance Tires and Wheels • Mounting ....11

Custom and Special Wheels ..............................12

Tube Type Tires ..................................................12

Stages of Inflation ...............................................13

Bead Seal .......................................................13

Bead Seat .......................................................13

Inflation ...........................................................13

Mis-Matched Tires and Wheels ..........................13

Maintenance Instructions ...................................14

Installation Instructions .....................................15

Critical Safety Instructions .................Back Cover

Operator Protective Equipment

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

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. Download a copy of the manual from our website at www.ammcoats.com, or for further information, contact:

Hennessy Industries, Inc. 1601 J.P. Hennessy Drive LaVergne, TN 37086-3565 (615) 641-7533 or (800) 688-6359 www.ammcoats.com

WARNING

For additonal tire, wheel, and/or inflation information contact the following:

RUBBER MANUFACTURERS ASSOCIATION 1400 K Street N.W. Washington, DC 20005 (202) 682-4800 www.rma.com

TIRE GUIDES, INC. The Tire Information Center 1101-6 South Rogers Circle Boca Raton, FL 33487-2795 (561) 997-9229 www.tireguides.com

Definitions of Hazard Levels

Identify the hazard levels used in this manual with the following definitions and signal words:

DANGER

Watch for this symbol:

It Means: Immediate hazards which will result in severe personal injury or death.

WARNING

Watch for this symbol:

It Means: Hazards or unsafe practices which could result in severe personal injury or death.

CAUTION

Watch for this symbol:

It Means: Hazards or unsafe practices which may result in minor personal injury or product or property damage.

Watch for this symbol! It means BE ALERT! Your safety, or the safety of others, is involved!

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 and Federal OSHA Regulations and Electrical Codes.

• Carefully check the unit for correct initial function.

• Read and follow the safety instructions. Keep them readily available for machine operators.

• Make certain all operators are properly trained, know how to safely and correctly operate the unit, and are properly supervised.

• Allow unit operation only with all parts in place and operating safely.

• Carefully inspect the unit on a regular basis and perform all maintenance as required.

• Service and maintain the unit only with authorized or approved replacement parts.

• Keep all instructions permanently with the unit and all decals on the unit clean and visible.

DANGER

CAUTION

WARNING

Explosion Hazard

Never inflate tire above manufacturer's recommended pressure after bead is seated.

DANGER

Explosion Hazard

Never exceed 40 PSI while seating beads.

7650/7655AX/EX Rim Clamp Tire Changer •

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.

Inflation Guard — Tubular structure to help protect operator from physical danger during

inflation process.

Inflation Control Panel — Inflation of tire is controlled by these two levers. Both levers must be

actuated from behind the barrier tubes to inflate tire.

Inflation Pedal — Three position pedal that allows inflation of tires through air hose and clip-

on chuck.

Clamp Control Pedal — Three position pedal that opens and closes rim clamps.

Table Top Pedal — Three position pedal that controls rotation of table top.

Bead Loosener Shoe — Pivoting shoe for loosening tire beads.

Bead Loosener Handle/Button — Controls operation of bead loosener shoe.

Combination Mount/Demount Head — Mounts and demounts tire from wheel.

Swing Arm Adjustment Knob — Adjusts swing arm/vertical slide assembly for proper

horizontal positioning of mount/demount head.

Air Inflation Gauge — Registers tire pressure when clip-on chuck is attached to valve stem

and inflation petal is released.

Release Valve — Allows the manual release of air pressure from tire.

Robotic Arm Control Valve — Controls Vertical Movement of Robotic Arm Cylinder.

Table Top — Rotating chuck for tire changing.

Clamps — Secures wheel to table top for tire

changing.

Bead Sealing Nozzles — Expands tire sidewall to bead seat area of rim to seal and allow

inflation.

Lube Bottle

— Dispenser for rubber lubricant.

Oil Check Dipstick — For transmission oil level.

Bead Lifting Tool — Used to lift and position tire bead correctly on mount/demount head.

Pressure Safety Valve — The high pressure safety valve is set to exhaust at line pressures

above 185 PSI.

Vertical Slide Locking Handle — Locks and unlocks vertical slide and sets correct vertical

position to maintain head/wheel clearance.

Bead Roller Tool — Used to apply pressure against sidewall of tire.

• 7660/7665AX/EX Rim Clamp Tire Changer

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.

BEAD LOOSENING AND DEMOUNTING

This machine may operate differently from machines

you have previously operated. Practice with a regular steel wheel and tire combination to familiarize yourself with the machine’s operation and function.

A. Remember to remove all weights from both sides of the wheel. Weights left on back side of wheel may cause the wheel to be clamped unlevel. This may result in the combination mount/demount head contacting the rim causing scratches. On alloy wheels, always rotate the wheel one turn after setting the head to insure proper wheel chucking.

B. Always review nicks and scratches with owners of expensive wheel and tire combinations prior to servicing.

C. Review the performance wheel section of this manual prior to servicing performance tire/wheel combinations.

1. Deflate tire completely by removing the valve

core from the valve stem (Figure 1).

Figure 1 – Remove Valve Core to Deflate Tire

NOTE: Loosening the beads on a partially or fully inflated tire is unsafe and causes excess movement and friction against the bumper pads and excessive wear on pivots. Deflate the tire completely to prolong the life of your machine.

D. Always loosen the bead on the narrow side of the wheel’s drop center first. See Figure 4 for more information on the drop center.

E. The clamps on the table top may extend beyond the table top itself. To avoid damaging the clamps, move them to their full inward position before positioning a tire for bead loosening.

F. Use extra care in positioning the bead loosener shoe on larger wheels/tires, and on alloy wheels. Make sure the shoe rests next to but not on the rim, and not on the tire sidewall.

2. Pull the bead loosener shoe away from the machine and roll wheel into position. The valve stem should be in the 2 o’clock position. Position the bead loosener shoe against the tire next to, but not on, the rim. Press the button on the bead loosener shoe handle to actuate the shoe and loosen the bead. It may be necessary to loosen the bead in multiple locations around the tire (Figure 2).

Figure 2 – Position Tire and Bead Loosener Shoe

3. Turn wheel around and repeat loosening procedure on the other side of the wheel. This should be the long side of the drop center (see Figure 4).

G. It will be easier to clamp the wheel to the table top if the lower bead is loosened last.

4. Apply tire manufacturer’s approved rubber lubricant liberally to entire circumference of both tire beads after loosening (Figure 3).

Figure 3 – Apply Rubber Lubricant to Tire Beads

7660/7665AX/EX Rim Clamp Tire Changer •

CAUTION

Valve Stem

5. Determine the mounting side of the wheel. The mounting side is the narrow side of the drop center. (Tire removed in Figure 4 for clarity.)

Figure 4 – Determining Mounting Side of Wheel

6. Place tire/wheel assembly on table top with mounting side up (Figure 5). Use the clamp control pedal to move the clamps inward (push pedal down) or outward (toggle pedal up). Clamp steel wheels from the inside (clamps push outward against wheel). Clamp mag and custom wheels from the outside (clamps push inward against the outside rim edge). Refer to the Performance Tires and Wheels section.

Figure 5 – Place Tire/Wheel Assembly on Table Top

7. Move the swing arm into position. Pull the locking handle forward to release the slide. Push down on the top of the vertical slide to move the demount head into contact with the rim edge. Push locking handle back to lock slide into place. As the slide is locked, the mount/demount head will move upward approximately 1/8 inch from rim edge (Figure 6).

Figure 6 - Position Mount/Demount Tool

8. The mount / demount head roller should be in contact with the rim edge. Turn the swing arm adjusting knob to move the roller away from the rim 1/8 to 1/4 inch (Figure 7).

Figure 7 - Adjust Swing Arm to Position Head Roller

9. Check metal head positioning. Mount/demount metal head should be positioned with 1/8 to 3/16 inch clearance between the top of the rim edge and the bottom of the head, and 1/8 to 1/4 inch clearance between the rim edge and the head roller. This clearance will be maintained as long as the locking handle and adjustment knob are not changed. The operator may swing the arm out of the way and back into place again without needing to reposition the head (when changing a like set of wheels) (Figure 8).

Figure 8 - Proper (Metal) Mount/Demount Head Position

10. Check plastic head positioning. Mount/demount plastic head should be positioned with 1/16 to 1/8 inch clearance between the top of the rim edge and the bottom of the head, and 1/16 to 1/8 inch clearance between the rim edge and the inside surface of the head. This clearance will be maintained as long as the locking handle and adjustment knob are not changed. The operator may swing the arm out of the way and

back into place again without needing to reposition the head when changing a like set of wheels (Figure

9).

Figure 9 - Proper (Plastic) Mount/Demount Head Position

Narrow Side

Long Side

Drop Center

1/8" to 1/4"

3/16" to 1/8"

1/16" to 1/8"

• 7050/7055/7060/7065 AX/EX Rim Clamp Tire Changer

+ 14 hidden pages