COATS 7xxx Series Tire Changer User Manual
®
50/60/70 and X-Model Series
Rim Clamp® Tire Changers
For servicing single piece automotive
and most tubeless light truck tire/wheel
assemblies.
Any other type, including tube type and agricultrual, require
special handling. Tires identifi ed as truck tires need to
adhere to OSHA standard 1910.177.
See
RIM Safety page iv
ÌOperating
Instructions
on page 4.
Safety Instructions
Set-up Instructions
* 7665 Shown
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.: 8183760 10
HENNESSY INDUSTRIES INC. Manufacturer of AMMCO
®
, COATS® and BADA® Automotive Service Equipment and Tools. Revision: 05/13
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
(615) 641-7533 or (800) 688-6359
www.ammcoats.com
For additional information contact:
Rubber Manufacturers Association
1400 K Street N. W., Suite 900
Washington, DC 20005
(202) 682-4800
www.rma.org
Tire Guides, Inc.
The Tire Information Center
1101-6 South Rogers Circle
Boca Raton, FL 33487-2795
(561) 997-9229
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 - 3
Know Your Unit ................................................... 2 - 3
Operating Instructions ........................................ 4 - 9
Tire Bead Loosening and Demounting ............... 4 - 7
Tire Mounting ..................................................... 8 - 9
Inflation ............................................................ 10 - 13
Bead Sealing ...........................................................11
Bead Seating ......................................................... 12
Inflation.................................................................. 13
Stages of Inflation on a Conventional Tire
and Rim ................................................................... 14
Mismatched Tires and Wheels ............................... 15
Performance, Custom, and Aluminum
Wheels .............................................................. 16 - 19
Performance Tires and Wheels • Demounting ...... 16
Aluminum and Custom Wheels .......................17 - 18
Performance Tires and Wheels • Mounting ........... 19
Leverless Bead Lifter Operation ............................ 20
Tire Demounting.................................................... 20
Tire Mounting ........................................................ 21
Custom and Special Wheels .................................. 22
Tube Type Tires ........................................................ 22
Maintenance Instructions ...................................... 23
Maintenance (Mount/Demount Tool) Cleaning ...... 23
Maintenance (Mount/Demount Tool)
Adjustment ............................................................ 24
Robotic Arm Maintenance ..................................... 24
Oil Injector Maintenance (if equipped) .................. 24
Pressure Limiter Maintenance .............................. 25
Setup Instructions .................................................. 26
Location ................................................................. 26
Air Source .............................................................. 26
Electrical Source .................................................... 26
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.
1
10
2
3
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.
26
4
9
27
25
5
8
24
23
7
22
11
6
Model 7060 Shown
(Wheel Not Included)
12
13
14
21
Single-Point Nozzle
20
19
15 16 17 18
2 • Important: Always read and follow operating instructions.
CAUTION
Replace any damaged or missing safety
decals. They are available from COATS, (800)
688-6359.
1 Pressure Safety Valve — The high pressure safety
valve is set to exhaust at line pressures above 185 PSI.
2 Release Valve — Allows the manual release of air
pressure from tire when clip-on chuck is attached to
tire valve.
3 Air Inflation Gauge — Registers tire pressure when
clip-on chuck is attached to tire valve stem and inflation
pedal is released.
4 Swing Arm Adjustment Knob — Adjusts swing
arm/vertical slide assembly for proper horizontal positioning of mount/demount tool.
5 Lube Bottle — Dispenser for rubber lubricant.
6 Inflation Pedal — Three-position pedal that allows
inflation of tires through air hose and clip-on chuck.
7 Oil Check Dipstick — For transmission oil level.
8 DuckHead® (Combination Mount/Demount Tool)
— Mounts and demounts tire from wheel.
9 Duckhead Roller — Attachment for mount/demount
tool to aid in mounting tire on the wheel.
19 Tire Bumper Guards — Provides protective sur-
face when bead loosening tires.
20 Bead Loosener Shoe — Pivoting shoe for loosen-
ing tire beads.
21 Bead Loosener Handle/Button — Controls opera-
tion of bead loosener shoe. Pull handle up or down on
some models.
22 Important Safety Decal — Important safety infor-
mation for the operator. DO NOT obstruct with tire
stickers or other materials.
23 Tower — Support for horizontal and vertical slides,
also air storage tank.
24 Vertical Slide Locking Handle — Locks and
unlocks vertical slide and sets correct vertical position
to maintain head/wheel clearance.
25 Leverless Bead Lifter Tool — Used to hook under
tire bead lip for top bead removal when demounting tire
from wheel. Used as a helper device when mounting
tire on wheel.
26 Leverless Bead Lifter Control — Controls vertical
movement of Leverless Bead Lifter Tool.
27 Swing Arm Lock Handle — Slides to lock and
unlock swing arm position. Available on units equipped
with a factory installed Leverless Bead Lifter.
10 Robotic Arm Control Valve — Controls vertical
movement of robotic arm cylinder.
11 Robo Arm™ — Provides extra leverage for runflat
and low profile tires.
12 Clamps — Holds wheel to table top for tire chang-
ing. Position outward to allow outside clamping of
wheels.
13 Bead Sealing Nozzles — Expands tire sidewall
to bead seat area of rim to seal tire to rim and allow
inflation. Some models are equipped with a single-point
nozzle bead sealer.
14 Table Top — Rotating chuck for tire changing.
15 Clamp Control Pedal — Three-position pedal that
opens, holds or closes rim clamps.
16 Bead Loosener Control Pedal — Controls opera-
tion of bead loosener shoe.
17 Table Top Pedal — Three-position pedal that con-
trols rotation of table top (forward, off, reverse).
18 Bead Lifting Tool — Used to lift and position tire
bead correctly on Duckhead mount/demount tool.
Important: Always read and follow operating instructions. • 3
Operating Instructions
This unit must be properly operated and properly
maintained to help avoid accidents that could injure
the operator or bystanders, or damage the unit. 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.
A. Remember to remove all weights from both sides
of the wheel. Weights left on backside of wheel
may cause the wheel to be clamped unleveled.
This may result in the combination mount/demount
tool contacting the rim causing scratches. On alloy
wheels, always rotate the wheel one turn after setting the Duckhead mount/demount tool to insure
proper wheel clamping.
B. Always review with the owner any nicks and
scratches on expensive wheel and tire combinations prior to servicing.
C. Review the performance wheel section of this
manual prior to servicing performance tire/wheel
combinations.
CAUTION
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.
1. Deflate the tire completely by removing the valve
core from the valve stem (figure 1). Be cautious and
do not smoke as a flammable gas could have been
introduced into the tire at some time.
Figure 1 - Remove Valve Core to Deflate Tire
CAUTION
Tires are always installed and removed from
the rim’s narrow side.
D. Always loosen the bead on the narrow side of
the wheel’s drop center first (tire removed in figure
2 for clarity).
Narrow Side
Drop Center
Long Side
Figure 2 - Determine Narrow Side of Wheel
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. Actuate valve (or pull) to position the bead loosener
shoe away from the machine and roll wheel into position. The valve stem should be in the 2 o’clock position
to accommodate a possible asymmetric safety hump
type rim. Position the bead loosener shoe against
the tire next to, but not on, the rim. Actuate the bead
loosener handle/button to position the shoe or press the
bead loosener pedal to position the shoe and loosen
the bead. It may be necessary to loosen the bead in
multiple locations around the tire (figure 3).
4 • Important: Always read and follow operating instructions.
Valve Stem at
2 o’clock Position
Figure 3 - Position Tire and Bead Loosener Shoe with Valve
Stem in 2 o’clock Position.
3. Turn the wheel around and repeat loosening pro-
cedure on the other side of the wheel (figure 4). This
should be the long side of the drop center (figure 2).
5. Determine the mounting side of the wheel. The
mounting side is the narrow side of the drop center. See
figure 2 for more information on the drop center.
Note: The wheel clamps can be positioned in one of
two different ranges: Use the inner holes for 6-22-inch
diameter wheels and the outer holes for 8-24-inch
wheels.
6. Place tire/wheel assembly on table top with mount-
ing side up (figure 6).
Mounting Side Up
Narrow Side
Figure 6 - Place Tire/Wheel Assembly on Table top
Valve Stem at
2 o’clock Position
Figure 4 - Position Tire and Bead Loosener Shoe With Wheel
Turned Around and Valve Stem in 2 o’clock Position.
G. It will be easier to outside clamp the wheel to
the table top if the long side of the rim is loosened
last.
4. Apply tire manufacturer’s approved rubber lubricant
liberally to entire circumference of both tire beads after
loosening (figure 5).
CAUTION
Clamp control pedal must be in the full up
or full down position (detent position) to
maintain clamping force on wheel.
7. Use Robo Arm to apply pressure to aid in clamping
rim (figure 7). Use the clamp control pedal to move the
clamps inward (push pedal down) or outward (lift pedal
up). Engage the detent position (pedal in full up or full
down position) to maintain clamped or unclamped
pedal position.
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.
Protective Pad
or Cloth
Figure 7 - Robo Arm Aids Clamping
Figure 5 - Apply Rubber Lubricant to Tire Beads
Important: Always read and follow operating instructions. • 5
8. 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
tool into contact with
the rim edge. Push the
locking handle back and
lock the slide into place.
As the slide is locked,
the mount / demount
tool will move upward
approximately 1/8-inch
from rim edge (figure 8).
Figure 8 - Position Mount/Demount Tool
9. The mount/demount tool should be in contact with
the rim edge. Turn the swing arm adjusting knob to
move the mount/demount tool away from the rim 1/8
to 1/4 inch (figure 9).
11. Check plastic tool positioning. Mount/demount
plastic tool should be positioned with 1/16 to 1/8 inch
clearance between the top of the rim edge and the
bottom of the tool, and 1/16 to 1/8 inch clearance
between the rim edge and
the inside surface of the
tool. This clearance will
be maintained as long as
1/16" to 1/8"
1/16" to 1/8"
Figure 11 - Proper (Plastic) Mount/Demount Tool Position
H. The tool clearance may change with machine use
and should be inspected often. Failure to maintain
the proper clearance may result in damage to the
wheel rim and/or tire.
J. Normal table top rotation for demounting is clockwise. Depress the table top pedal to rotate this
direction. To rotate the table top counterclockwise,
lift the pedal up with your toe.
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 tool
(when changing a like set
of wheels) (figure 11).
Figure 9 - Adjust Swing Arm to Position Tool
10. Check metal tool positioning. Mount/demount
metal tool should be positioned with 1/8 to 3/16 inch
clearance between the top of the rim edge and the
bottom of the tool, and 1/8 to 1/4 inch clearance
between the rim edge and the tool 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 tool (when changing
a like set of wheels) (figure 10).
3/16" to 1/8"
1/8" to 1/4"
K. Table top rotation can be stopped at any time by
removing your foot from the rotation pedal.
CAUTION
At times during the mounting and demounting procedure, the bead lifting tool may
encounter resistance and can be thrown.
Keep one hand firmly on the tool to avoid
possible tool disconnect. Use the reversing
feature to back out of jam-ups. A thrown
tool can cause injury.
12. Insert the smooth curved end of the bead lifting
tool over the forward end of the demount tool and
below the top bead of the tire (figures 12 & 13). Lift
the bead up and over the knob on the demount tool
(figure 12 & 13). Also, note the valve stem position to
the demount tool. Use the Robo Arm to push down on
the tire opposite the demount tool to allow the bead
to utilize the drop center area of the rim, this position
reduces stresses in the bead and allows an easier bead
lift.
Note: When using a hybrid mount/demount tool, push
the tail into the wheel before lifting the tire with the
bead lifting tool.
Figure 10 - Proper (Metal & Hybrid) Mount/Demount Tool
Position
6 • Important: Always read and follow operating instructions.
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