COATS 4070 Tire Changer User Manual

®

4070

Tire Changer

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

Safety Instructions
Set-up Instructions

Operation 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 www.ammcoats.com Manual Part No.: 85608978 01
HENNESSY INDUSTRIES INC. Manufacturer of AMMCO

®

, COATS® and BADA® Automotive Service Equipment and Tools. Revision: 02/14

Tire Specifi cations Diagram

Nominal width of
tire in millimeters

Passenger
car tire

Max.
permissible
inflation
pressure

Radial

Ratio of height to
width (aspect ratio)

1

2

P

E

L

A

I

D

A

R

I

S

P

5

0

0

3

1

D

A

O

L

.

X

A

N

O

I

T

E

R

I

T

A

E

R

N

U

T

A

A

R

E

M

X

P

M

E

R

P

.

A

M

3

.

S

S

E

S

B

L

T

5

A

C

Rim diameter
code

Load index &
speed symbol

U.S. DOT tire

1

R

5

6

/

S

E

L

E

B

U

T

M

D

R

O

C

A

R

T

0

2

5

9

5

H

D

O

S

T

M

A

L

9

A

B

L

L

2

P

L

I

E

S

2

X

X

X

X

X

E

A

D

W

E

A

2

R

C

0

3

6

T

R

E

S

I

D

E

W

A

T

R

identification number

M

+

S

A

D

4

O

R

D

P

L

I

E

X

X

C

M

A

S

2

X

X

X

N

U

F

A

C

T

U

R

E

R

Severe snow
conditions

Tire ply
composition
and materials
used

Treadwear, traction
and temperature grades

ii • Important: Always read and follow operating instructions.

Max. load rating

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. 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.

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.

CAUTION

Watch for this symbol:

CAUTION

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

• Do not override or bypass safety features.

Operator Protective Equipment

Personal protective equipment helps make tire ser­vicing safer. However, equipment does not take the
place of safe operating practices. Always wear durable
work clothing during tire service activity. 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.

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!

Important: Always read and follow operating instructions. • iii

Safety Notices and Decals

Remember R.I.M.

Three Simple Steps To Help Keep Shops Safe

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
[phone] or [phone]
www.ammcoats.com

For additional information contact:

Rubber Manufacturers Association

1400 K Street N. W., Suite 900
Washington, DC 20005
[phone]
www.rma.org

Tire Guides, Inc.

The Tire Information Center
1101-6 South Rogers Circle
Boca Raton, FL 33487-2795
[phone]
www.tireguides.com

READ INSPECT

R.I.M. is a training program developed by Hennessy
Industries to help keep tire technicians safe. By follow­ing the basic principles of R.I.M., technicians can avoid
situations that can cause catastrophic accidents like tire
explosions.

R.I.M. stands for read, inspect, and mount:

Read the tire size on a new tire before mounting to

make sure it is the proper size for the wheel.

Inspect the wheel for cracks, rust, and or other dam­age that could cause an unsafe situation.

Mount the tire safely, making sure not to put any part
of your body over the tire during inflation.

The most serious of possible accidents is a tire explo­sion. This is often caused by a tire/rim mismatch.

If a tire explodes on a tire changer, pressure causes it
to fly straight up at tremendous speed. If a technician
is standing over the tire, he can be seriously injured or
killed.

Hennessy’s R.I.M. program allows the technician to
avoid situations that can cause tire explosions and other
accidents. The full program, including training videos,
brochures, posters, and other materials, is available
from Coats distributors nationwide.

MOUNT

For more details, contact your Coats distributor or e-mail us.

iv • Important: Always read and follow operating instructions.

Table of Contents

Tire Specifications Diagram ..................................... ii

Safety Instructions .................................................. iii

Owner’s Responsibility ............................................iii

Operator Protective Equipment ............................... iii

Definitions of H azard Levels .................................... iii

Safety Notices and Decals ......................................iv

Remember R.I.M. ....................................................iv

Principle Operating Parts ......................................... 2

Know Your Unit ........................................................ 2

Operating Instructions ....................................... 3 -11

Tire Bead Loosening and Demounting ............... 3 - 5

Tire Mounting ..................................................... 6 - 7

Inflation..............................................................7 - 11

Stages of Inflation on a Conventional Tire

and Rim ................................................................... 12

Mismatched Tires and Wheels ............................... 13

Performance Tires/Custom Wheels ................ 14 - 15

Custom and Special Wheels .................................. 15

Tube Type Tires ........................................................ 16

Maintenance Instructions ............................... 16 - 18

Cylinder Maintenance ............................................ 16

Filling 8" Cylinders ................................................. 16

Pressure Gauge Maintenance

and Calibration ........................................................17

Lower Shoe Setting ................................................17

Routine Maintenance ............................................ 18

Setup Instructions .................................................. 18

Location ................................................................. 18

Air Source .............................................................. 18

Floor Mounting ...................................................... 18

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

NOTICE

Read entire manual before assembling,
installing, operating, or servicing this
equipment.

Important: Always read and follow operating instructions. • 1

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

Replace any damaged or missing safety
decals. They are available from COATS, (800)
688-6359.

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.

3 Centering Cone — Centers the wheel to the con-

toured table top.

4 Positioning Pin — Engages lug hole in wheel to

prevent rotation during mounting and demounting.

5 Contoured Table Top

6 Upper Bead Loosener Shoe — Controls operation

of bead loosener shoe.

7 Adjustable Upper Bead Loosener — Adjusts to

accommodate wide wheels.

8 Detent Control Knob — Controls the amount of

travel of the lower bead loosener to prevent damage
to large diameter narrow wheels and reverse mount
wheels.

9 Rubber Lubricant Dispenser

10 Serial Number Plate — Record the serial number

for future reference. Provide this number with any war­ranty or service claim, and with all parts orders.

11 Combination Tool — Used in mounting and

demounting operations.

12 Foot Pedal — Operates the air valve for power

bead loosening, mounting, and demounting.

13 Air-Flate Pedal — 3 position pedal for tire inflation

via air hose/chuck. Do not press without tire/wheel
assembly on unit.

14 Air-Flate Jets — Expands tire sidewalls to bead

seat portion of rim for the bead sealing process.

15 Air Chuck — Clip-on style.

16 Manual Release Valve — Allows for manual

release of air pressure from the tire.

17 Air Gauge — Registers tire pressure when air

chuck is attached to the valve stem and inflation pedal
is released.

18 Lower Bead Loosener — 2 shoes for lower bead

loosening.

19 Short Center Post Extension (Optional, Part

#8108313) — Lengthens center post for wheels

between 10 an 14 inches wide.

20 Long Center Post Extension (Optional, Part

#8108313) — Lengthens center post for wheels over

14 inches wide.

21 1/4” Shim — Installs on lower bead loosener to

prevent damaging aluminum and magnesium wheels
with wide flanges.

22 Hold Down Tube — Used with styled steel wheels

to prevent the centering cone from touching the wheel

2 • Important: Always read and follow operating instructions.

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.

Tire Bead Loosening and Demounting

CAUTION

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.

NOTE: Always review nicks and scratches with own-

ers of expensive wheel and tire combinations prior to
servicing.

IMPORTANT: Refer to the Performance Wheels and
Tires section of this manual before servicing custom
and performance wheel and tire combinations.

3. Place the tire/wheel assembly over the center post

and down onto the contoured table top, with the narrow
side of bead seat up (figure 1)The positioning pin must
engage a lug hole in the wheel. Position the tire/wheel
assembly so that the valve stem is on the operator’s
side of the machine.

NOTE: Make fine adjustments to the lower bead

loosener shoe with the shim kit before placing mag or
alloy wheel assemblies on the table top. Refer to the
instructions on bead loosener shoe.

4. Thread centering cone clockwise onto the center

post. As the tapered end enters the center hole of the
wheel, the tire/wheel assembly will adjust itself on the
table top. Be sure the cone is hand tight and is centered
in the wheel’s center hole (Fig. 2).

IMPORTANT: Refer to the Tube Type Tires section of
this manual before servicing tires with tubes.

1. Determine the correct side of the wheel for tire

removal. Remove the tire from the narrow side (tire
mounting side). Tire will not mount or demount from
the long side.

NOTE: On some wheels, the sides may be nearly
equal. Measure carefully. Only the narrow side is used
for mounting and demounting.

Narrow Side

Drop Center

Long Side

Figure 1 - Determining Tire Mounting Side

2. Remove the valve core and allow all of the air to

escape from the tire. Remove all weights from rim.

Figure 2 - Thread the Centering Cone onto the Center Post

5. Check the detent control knob for proper setting.

Forward is used for all tire and wheel combinations
except 15” x 4” , 16” x 5” to 7” , and 17.5” x 5.5” to 7.5”.
To move the detent lever, push the knob down, move it
to the proper setting, and release the knob (fig. 3).

Figure 3 - Positioning the Detent Control Knob

.

Important: Always read and follow operating instructions. • 3

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.

Figure 4 - Positioning the Upper Bead Loosener Shoe

Note: If may be necessary to loosen the bead at differ-

ent points around the wheel circumference to entirely
free the bead.

IMPORTANT: Make sure the tool is oriented as shown

in figure 6.

Figure 6 - Align, Insert, and Push Down on the Tool

9. Continue to push down on the tool until the center

post key protrudes through the slot in the tool and the
tool stops against the shoulder of the key. The tool is
now positioned properly for operation of the center post
key (figure 7). Keep a firm hold on the tool at all times to
prevent accidental disconnect.

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.

Figure 5 - Lubricate Tire Beads

8. Position the combination tool so that it aligns with

the center post key. Insert the demount end of the tool
between the tire and rim. Push the tool down towards
the center post as shown in figure 6 to lift the tire bead
over the rim.

Figure 7 - Tool Properly Positioned

10. Press down on the foot pedal. The counterclock-

wise rotation of the center post key and combination
tool will remove the upper tire bead from the rim. Lifting
up on the tire with the left hand as shown by the arrow
in figure 8 helps in demounting tougher tires.

Figure 8 - Removing Upper Bead

11. To remove the lower bead from the wheel, repeat

steps 8, 9, and 10.

4 • Important: Always read and follow operating instructions.