Coats 90C User manual

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.
Safety Instructions
Set-up Instructions
Operation Instructions
Maintenance Instructions
See
RIM Safety page 1
Operating
Instructions
on page 4.
1601 J. P. Hennessy Drive, LaVergne, TN USA 37086 615/641-7533 800/688/6359 www.coatsgarage.com Manual Part No.: 85611918 01
HENNESSY INDUSTRIES LLC Manufacturer of COATS®, AMMCO®and BADA®Automotive Service Equipment and Tools. Revision: 9/21
80/90C Model
Center Clamp Tire Changer
For servicing single piece
automotive and most tubeless light
truck tire/wheel assemblies.
Any other type, including tube type agricultrual,
require special handling. Tires identied as truck
tires need to adhere to OSHA standard 1910.177. Shown with optional
EL-X Express Lane®
Ination System
(part # 85607770)

ii • Important: Always read and follow operating instructions.
Read entire manual before assembling,
installing, operating, or servicing this
equipment.
NOTICE
Table of Contents
Tire Specifications Diagram.............................. iii
Safety Instructions ............................................ iv
Owner’s Responsibility......................................iv
Operator Protective Equipment.........................iv
Definitions of Hazard Levels..............................iv
Safety Notices and Decals ................................ 1
Remember R.I.M............................................... 1
Principle Operating Parts .............................. 2 - 3
Know Your Unit ............................................. 2 - 3
Operating Instructions ................................ 4 - 10
Tire Bead Loosening and Demounting ......... 4 - 8
Tire Mounting..............................................9 - 10
Leverless Bead Lifter Operation ................11 - 13
Inflation ...................................................... 14 - 16
Bead Sealing..............................................14 - 15
Bead Seating ....................................................15
Inflation.............................................................16
Stages of Inflation on a ConventionalTire
and Rim ..............................................................17
Mismatched Tires and Wheels ..........................18
Custom and Special Wheels .............................19
Tube Type Tires ...................................................19
Maintenance Instructions ................................ 20
Duckhead (Mount/Demount Tool) Cleaning ..... 20
Duckhead (Mount/Demount Tool)
Adjustment...................................................... 21
Robotic Arm Maintenance............................... 21
Pressure Limiter Maintenance ........................ 22
Separator/Lubricator Maintenance .................. 23
Setup Instructions ............................................ 24
Location........................................................... 24
Workspace Requirements............................... 24
Floor Mounting................................................ 24
Air Source........................................................ 24
Electrical Source.............................................. 24
Critical Safety Instructions................ Back Cover

Important: Always read and follow operating instructions. • iii
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Load index &
speed symbol
Rim diameter
code
Radial
Ratio of height to
width (aspect ratio)
Nominal width of
tire in millimeters
Passenger
car tire
U.S. DOT tire
identification number
Severe snow
conditions
Tire ply
composition
and materials
used
Max. load rating
Treadwear, traction
and temperature grades
Max.
permissible
inflation
pressure
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Tire Specications Diagram

iv • Important: Always read and follow operating instructions.
Safety Instructions
Owner’s Responsibility
To maintain machine and user safety, the responsibil-
ity of the owner is to read and follow these instruc-
tions:
• Follow all installation instructions.
• Make sure installation conforms to all applicable
Local, State, and Federal Codes, Rules, and Regu-
lations; 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 autho-
rized or approved replacement parts.
• 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 ser-
vicing 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. Consid-
eration 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.
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:
CAUTION
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. • 1
Safety Notices and Decals
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 LLC
1601 JP Hennessy Drive
LaVergne, TN 37086
[phone] or [phone]
www.hennessyind.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
Decal part number 85611138.
Remember R.I.M.
Three Simple Steps To Help Keep Shops Safe
R.I.M. is a training program developed by Hennessy
Industries to help keep tire technicians safe. By fol-
lowing 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 dam-
age 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.
For more details, contact your Coats distributor or e-mail us.
READ INSPECT MOUNT
BY
READ INSPECT MOUNT
R . I . M .
REMEMBER

2 • Important: Always read and follow operating instructions.
Principal Operating Parts
Do It Now!
Now is a good time to contact product service at
800-688-6359 to start warranty, otherwise warranty
starts at time of shipment.
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
2
5
◊15
3
4
6
7
11
13
9
10
16 17
18 19
20
8
21
12
14

Important: Always read and follow operating instructions. • 3
CAUTION
Replace any damaged or missing safety
decals. They are available from COATS,
[phone].
1Pressure Safety Valve — The high pressure safety
valve is set to exhaust at line pressures above 200
PSI.
2Release Valve — Allows the manual release of air
pressure from tire when clip-on chuck is attached to
tire valve.
3Air Inflation Gauge — Registers tire pressure
when clip-on chuck is attached to tire valve stem and
inflation pedal is released.
4Swing Arm Adjustment Knob — Adjusts swing
arm/vertical slide assembly for proper horizontal posi-
tioning of mount/demount tool.
5Important Safety Decal — Important safety infor-
mation for the operator. DO NOT obstruct with tire
stickers or other materials.
6Inflation Pedal — Pedal that allows inflation of
tires through air hose and clip-on chuck.
7RoboRoller™ Powered Assist— Provides extra
leverage for runflat and low profile tires.
8Pedestal — Rotating chuck for tire changing.
9Robo-Arm®Control Valve — Controls vertical
movement of Robo-Arm cylinder.
10 Robo-Arm®Helper Device— Provides extra
leverage for runflat and low profile tires.
11 Vertical Slide Locking Handle — Locks and
unlocks vertical slide and sets correct vertical position
to maintain Duckhead tool/wheel clearance.
12 Tower — Support for swing arm, Robo-Arm
helper device and RoboRoller™ powered assist, also
air storage tank.
13 DuckHead®(Combination Mount/Demount
Tool) — Mounts and demounts tire from wheel.
14 ◊Anti-Rotation Extension Pin — Use pin
extension for reverse mount wheel clamping.
15 ◊Center Lock Clamp/Protection Cone — Center
locking clamp to hold wheel on pedestal for tire
changing (not shown).
16 Rotation Pedal — Three-position pedal that
controls rotation of pedestal (forward, off, reverse).
17 Bead Lifting Tool — Used to lift and position tire
bead correctly on Duckhead mount/demount tool.
18 Tire Bumper Guards — Provides protective sur-
face when bead loosening tires.
19 Anti-Tip Foot — A device to provide stability for
the tire changer.
20 Bead Loosener Shoe — Pivoting shoe for loos-
ening tire beads.
21 Bead Loosener Handle — Controls operation of
bead loosener shoe. Pull handle up or down.
22 Storage Cabinet — Provides additional storage
that is easily accessible to the technician.
23 ◊Auxiliary Bead Sealer (ABS) — Expands tire
sidewall to bead seat area of rim to seal tire to rim and
allow inflation (not shown).
◊Not Shown

4 • Important: Always read and follow operating instructions.
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.
NOTE: 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.
NOTE: Always review with the owner any nicks
and scratches on expensive wheel and tire combi-
nations prior to servicing.
NOTE: 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.
NOTE: Always loosen the bead on the narrow
side of the wheel’s drop center first (tire removed
in figure 2 for clarity).
Figure 2 - Determine Narrow Side of Wheel
NOTE: 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 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 to position the shoe and loosen the
bead. It may be necessary to loosen the bead in
multiple locations around the tire (figure 3).
Narrow Side
Drop Center
Long Side

Important: Always read and follow operating instructions. • 5
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).
Figure 4 - Position Tire and Bead Loosener Shoe With Wheel
Turned Around and Valve Stem in 2 o’clock Position.
4. Apply tire manufacturer’s approved rubber lubri-
cant liberally to entire circumference of both tire
beads after loosening (figure 5).
Figure 5 - Apply Rubber Lubricant to Tire Beads
5. Place rubber protective cover on top of pedestal
(reverse mount only). Align slot with anti-rotation pin.
Figure 6 - Place Protective Cover on Pedestal
6. Determine the mounting side of the wheel (see
figures 7a and 7b). The mounting side is the narrow
side of the drop center. See figure 2 for more informa-
tion on the drop center.
Figure 7a - Mounting Side Up, Conventional Wheel
Figure 7b - Mounting Side Up, Reverse Mount
Valve Stem at
2 o’clock Position
Narrow Side
Wheel Face
Conventional WheelConventional Wheel
Mounting Side Up
Valve Stem at
2 o’clock Position
Anti-rotation Pin
Wheel Face Inverted
Narrow Side
Reverse Mount WheelReverse Mount Wheel
Mounting Side Up

6 • Important: Always read and follow operating instructions.
7. Place tire/wheel assembly on pedestal with the
mounting side up (see figures 8a and 8c) and with the
anti-rotation pin located inside one of the lug holes.
Use the anti-rotation extention pin (figure 8b) for
reverse mount tire/wheel assemblies.
Figure 8a - Place Conventional Tire/Wheel Assembly on
Pedestal with Anti-Rotation Pin in Lug Hole
Figure 8b - Place Anti-Rotation Extension Pin over Anti-
Rotation Pin
Figure 8c - Place Reverse Mount Tire/Wheel Assembly on
Pedestal with Anti-Rotation Extention Pin in Lug Hole
8. Place the center mount lock shaft through center
of wheel (figure 9). Push it down and turn 90-degrees
clockwise to clamp wheel to pedestal (figure 10). Now
tighten by turning the knobs by hand in a clockwise
direction.
Figure 9 - Place Center Mount Lock through Wheel Center
Figure 10 - Tighten Tire/Wheel Assembly to Pedestal
9. Move the swing arm into position. Pull the lock-
ing handle forward to release the slide. Push down
on the top of the vertical slide (figure 11) 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 11 - Position Mount/Demount Tool
Anti-rotation Pin
Anti-rotation Pin
Extenstion
Anti-rotation Pin
Extenstion

Important: Always read and follow operating instructions. • 7
10. 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 12).
Figure 12 - Adjust Swing Arm to Position Tool
11. 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 (figure 13).
This clearance will be maintained as long as the lock-
ing 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 13 - Proper (Metal) Mount/Demount Tool Position
12. 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 clear-
ance between the rim edge and the inside surface
of the tool (figure 14).
This clearance will be
maintained as long as
the locking handle and
adjustment knob are
not changed. The opera-
tor 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 14 - Proper (Plastic) Mount/Demount Tool Position
NOTE: The tool clearance may change with
machine use and should be inspected often. Fail-
ure to maintain the proper clearance may result in
damage to the wheel rim and/or tire.
NOTE: Normal pedestal rotation for demounting
is clockwise. Depress the rotation pedal to rotate
this direction. To rotate the pedestal counterclock-
wise, lift the pedal up with your toe.
NOTE: Pedestal rotation can be stopped at any
time by removing your foot from the rotation
pedal.
13. Use the RoboRoller™ powered assist to push
down on a tire with stiff sidewalls to lubricate the tire
bead (figure 15).
Figure 15 - Use RoboRoller Powered Assist To Lube Tire
Bead
3/16" to 1/8"
1/8" to 1/4"
1/16" to 1/8"
1/16" to 1/8"

8 • Important: Always read and follow operating instructions.
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.
14. 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 16 & 17). Lift
the bead up and over the knob on the demount tool
(figure 16 & 17). Also, note the valve stem position to
the demount tool. Use the Robo-Arm®helper device
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.
Figure 16 - Insert Bead Lifting Tool
15. Push the bead lifting tool down towards the
wheel to lift the tire bead up and over the knob portion
of the demount tool. Hold the tool and bead in this
position (figure 17).
Figure 17 - Lift Bead Over Demount Tool
16. Depress the rotation pedal to rotate the wheel.
The Duckhead mount/demount tool will guide the tire
bead up and over the edge of the wheel. Continue
rotation until the upper bead is demounted.
NOTE: Push down on the tire across from the
demount tool during pedestal rotation to utilize
the drop center area of the wheel. This reduces
the tensional force on the top or first bead during
demount (figure 18).
Figure 18 - Demounting Lower Bead
17. Lift and hold the tire at an angle so that the
lower bead is resting in the drop center directly
across from the demount tool, and is loose below the
demount tool (figure 18). Insert the smooth curved
end of the bead lifting tool down over the forward end
of the mount/demount tool and below the lower bead.
Lift the bead up and over the knob on the demount
tool (figure 19).
Figure 19 - Guide Lower Bead Over Knob On Demount Tool
18. Depress the rotation pedal to rotate the wheel.
The demount tool will guide the bead up and over the
edge of the wheel. Continue rotation until lower bead
is demounted.
Valve Stem
Push down

Important: Always read and follow operating instructions. • 9
Tire Mounting
This information must be read and followed carefully
to prevent accidents and injuries during mounting.
Mounting a mismatched tire and wheel
will cause an explosion before it bead seats
during inflation. Attempts to force a bead
seat, by increasing air pressure, on mis-
matched tires and wheels will cause the
tire to violently explode, causing serious
personal injury or death to operator and/or
bystanders if standing over tire and wheel.
Check tire and wheel carefully before
mounting. Make sure the tire bead diameter
and wheel diameter match exactly. Consult
the tire manufacturer’s recommendations,
Tire Guide and/or Rubber Manufacturer's
Association for approved rim widths for
tire sizes.
Never mount a damaged tire. Never mount
a tire on a rusty or damaged wheel. Used
tires may have bead and/or tread damage.
Used rims may have flange damage where
the tire/rim was run down the road on a
flat tire. Run-flat tires are not meant to be
reused! Damaged tires and/or wheels may
explode.
CAUTION
When in doubt do not mount. Never mount
a tire and wheel handed to you by anyone
without checking both tire and wheel for
damage and to be certain the sizes match.
Used tires may have road hazard damage
or mount/demount damage, inspect care-
fully. Do not let untrained persons operate
tire changer and keep bystanders out of
service area.
CAUTION
Forcing the tire onto the rim can cause
bead damage. If you damage the tire bead
during mounting, STOP!, remove tire and
mark it as damaged. Do not mount a dam-
aged tire.
1. Before any mounting, inspect tire for damage and
verify size match between tire and wheel (figure 20).
Figure 20 - Verify Size Match Between Tire and Wheel
2. Inspect wheel closely for damage. Clean the
wheel and remove any light corrosion or rubber resi-
due (figure 21). Do not attempt to service a heavily
corroded wheel, damaged wheel, or bent wheel.
Figure 21 - Inspect and Clean the Wheel
3. Inspect valve stem and replace if necessary. Next
lubricate tire beads liberally with tire manufacturer’s
approved rubber lubricant (figure 22).
Figure 22 - Lubricate Tire Beads Liberally

10 • Important: Always read and follow operating instructions.
4. Place tire over wheel and move swing arm into
position making sure the valve stem is at the 9 o’clock
position in front of bead lock. Position tire so that
lower bead is above the rear extension of the mount/
demount tool and below the front knob (figure 23).
Figure 23 - Position Tire Against Mount/Demount Tool
5. Depress rotation pedal and rotate wheel to
mount lower bead. Use drop center of wheel by push-
ing down on tire just ahead of the mounting tool, and
follow as tire rotates (figure 24). Rotate pedestal until
lower bead is mounted.
Figure 24 - Mounting Lower Bead
6. Use Robo-Arm®helper device to push down on
tire 90 degrees clockwise from Duckhead mount/
demount tool to allow bead to utilize drop center area
of rim (figure 25). If needed, use the RoboRoller pow-
ered assist to keep the tire bead in the drop center
area of rim (figure 26).
Fig 25 - Use Robo-Arm Helper Device To Hold Tire In Rim
Drop Center
7. Depress rotation pedal and rotate tire until bead
is mounted. Be careful to ensure bead stays in the
rim drop center in the area ahead of Duckhead mount
tool.
Figure 26 - Mounting Top Bead
NOTE: If pedestal rotation stalls, reverse the
pedestal momentarily until the tire bead is again
loose on the wheel. Add more lubricant to assure
the tire bead slides into the drop center. Reposi-
tion tire on Duckhead mount/demount tool and
make sure the tire bead is correctly positioned in
drop center of the wheel; then attempt mounting
again.
NOTE: After the inflation process is complete,
remove the center mount lock.
Valve Stem

Important: Always read and follow operating instructions. • 11
Leverless Bead Lifter Operation
This section of the Operating Instructions manual
review basic operations and use of the Leverless Bead
Lifter on units so equipped. Keep these instructions
near the machine for easy reference.
Tire Demounting
Follow tire changer operating instructions provided for
demounting a standard wheel assembly, except:
1. After deflating, bead loosening, and clamping the
wheel to the pedestal per the standard instructions.
Position leverless arm until mount/demount tool plastic
contacts wheel.
2. Position the leverless arm until the leverless
demount tool plastic contacts the wheel.
3. Set the leverless demount tool to 1/8-inch to
3/16-inch above the wheel.
Figure 47 - Position Demount Tool Against Rim
4. Lock the swing arm, when the leverless demount
tool is in the proper position.
Figure 48 - Lock Swing Arm In Position
5. Lubricate top and underside of leverless bead lifter
tool hook (figure 49).
Note: To aid tire bead lubrication, lower leverless tool
hook slightly to move bead away from wheel.
Figure 49 - Apply lubricant to Bead Lifter Tool Hook
6. Position valve stem behind leverless demount tool
tail (figure 50) to prevent damage to TPMS (Tire Pres-
sure Monitoring System) sensor.
Figure 50 - Position Valve Stem Behind Leverless Demount
Tool
7. With the swing arm locked in position, push control
handle down to lower leverless bead lifter tool hook
under the upper tire bead (figure 51).
NOTE: If leverless tool hook does not hook under
tire bead, reverse rotation. Re-position valve stem, and
push down on tire opposite leverless bead lifter tool to
allow bead to utilize the drop center area of the rim and
allow easier bead lift over leverless bead lifter tool hook.
Engage Swing Arm
Lock To Hold Bead
Lifter Against Wheel
1/8" to 3/16"
Tire Removed
For Clarity
Valve Stem
85610621 00
Center Mount
Lock Removed
For Clarity

12 • Important: Always read and follow operating instructions.
NOTE: Use Robo-Arm®(if equipped) to help push tire
bead into the drop center.
Figure 51 - Leverless Tool Hooked Under Tire Bead
8. Push leverless bead lifter control up, retracting
leverless tool hook.
Important: Do not rotate the TPMS sensor past the
leverless tool, when the leverless tool is extended
down!
9. Depress the rotation pedal to rotate wheel. The
leverless bead lifter demount tool will guide the bead up
and over the edge of the wheel. Continue rotation until
the upper bead is demounted.
Figure 52 - Demount Upper Tire Bead
10. Next, position valve stem behind leverless bead
lifter tool to prevent damage to TPMS (Tire Pressure
Monitoring System) sensor. Push control handle down
to lower the leverless bead lifter tool hook under lower
tire bead.
Figure 53 - Bead Lifter Tool Hooked Under Lower Tire Bead
11. While holding tire up in the drop center, lift the
tire to hook lower bead on the leverless tool hook. Push
the control handle up to lift bead over rim (figure 54).
Figure 54 - Push Control Handle Up To Lift Bead Over Rim
12. Depress the rotation pedal to rotate wheel. The
leverless bead lifter tool will guide the bead up and over
the edge of the wheel. Continue rotation until the lower
bead is demounted.
Figure 55 - Demount Lower Tire Bead
Important: Never rotate counter-clockwise with the
bead lifted!
NOTE: During lower bead demount, if tire slips on
wheel, use a wheel weight scraper to apply slight
upward pressure, while rotating clockwise.
Valve Stem
Center Mount
Lock Removed
For Clarity Center Mount
Lock Removed
For Clarity
Center Mount
Lock Removed
For Clarity
Center Mount
Lock Removed
For Clarity
Center Mount
Lock Removed
For Clarity

Important: Always read and follow operating instructions. • 13
Tire Mounting
13. Lubricate tire beads liberally with tire manufac-
turer’s approved rubber lubricate.
NOTE: If equipped, use Robo-Roller™ to push down
on the tire while applying lubricant to the tire bead.
Figure 56 - Use Robo-Roller When Appling Lubricant to Tire
Bead
14. Place tire over wheel and move swing arm into
position. Make sure the valve stem is at the 9 o’clock
position in front of bead lock to prevent TPMS sensor
damage.
Figure 57 - Position Valve Stem in Front of Bead Lock
15. Position tire so that lower bead is above the rear
extension (tail) of the leverless mount tool and below
the front knob (figure 58).
Figure 58 - Position Tire Against Bead Lifter Tool
16. Depress rotation pedal and rotate wheel to
mount lower bead. Use drop center of wheel by forcing
down on tire just ahead of leverless mount tool, and
follow as tire rotates. Rotate until the lower bead is
mounted.
17. For top bead installation, rotate until the valve
stem on wheel is just in front of where the bead
crosses the rim (figure 59). Be sure the tire is on top of
the mount/demount tool tail.
Figure 59 - Position Valve Stem In Front Of Bead Lock
If equipped, use the Robo Arm™ to push down on tire
90 degrees clockwise from mount tool and move the
Robo-Roller in front of the mount tool to allow tire bead
to utilize the drop center area of rim (figure 60).
Figure 60 - Robo-Arm and Robo-Roller Pushing Tire Bead in
to the Drop Center
18. Slightly lower leverless tool hook to push bead
down; hold opposite side of tire down into drop-center.
19. Depress rotation pedal and rotate tire until bead
is mounted. Be careful to ensure bead stays in the rim
drop center in the area ahead of the bead lifter tool.
20. Inflate, unclamp per standard instructions.
Valve Stem
Valve Stem
Lower Bead
Above Tail
Valve Stem
Center Mount
Lock Removed
For Clarity
Center Mount
Lock Removed
For Clarity
Center Mount
Lock Removed
For Clarity
Center Mount
Lock Removed
For Clarity
Center Mount
Lock Removed
For Clarity

14 • Important: Always read and follow operating instructions.
Ination
Tire inflation is performed in three steps: BEAD
SEAL, BEAD SEAT, and INFLATION. These steps are
explained in detail on page 14. Read the explanation
of each step and understand them thoroughly before
proceeding.
Tire failure under pressure is hazardous.
This tire changer Will Not Restrain Explod-
ing Tires, rims or other related equipment.
Inspect tire and wheel carefully for match,
wear, damage, or defects before mounting.
Always use approved tire bead lubricant
during mounting and inflation.
CAUTION
The clip-on chuck allows the operator to
keep hands and entire body back from
inflating tire. The chuck must be an open/
freeflow style with all parts in proper work-
ing order.
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.
The inflation pedal, located at the rear of the left side
of the machine, controls the flow of air through the
inflation hose, and has two positions.
Note: The clip-on chuck on the end of the hose is
a safety item that must always be an open/freeflow
style with all parts in proper working order.
Position 1 - Tire Pressure – With the inflation hose
attached to the tire valve and the pedal in this position,
the air gauge will register the air pressure in the tire.
Whenever your foot is removed from the pedal, it will
return to this position.
Position 2 - Tire Inflation – This is the first activated
position. With the inflation hose attached (using the
clip-on chuck) to the tire valve and the pedal in this
position, line pressure is allowed to flow through the
valve system and into the tire for inflation. Correct tire
pressure is not indicated on the gauge in this position.
Note the Inflation Pedal Positions (See Diagram)
NOTE: This unit is equipped with a pressure lim-
iter to assist the operator with proper tire inflation.
When the inflation pedal is held in position 2, the
pressure limiter cycles the system between posi-
tion 2 (inflation) and position 1 (at rest, no airflow
to tire). This cycling helps to prevent over inflation
of the tire. Tires can still be over inflated and
explode, when using this pressure limiter, if all of
the instructions in this manual are not followed
completely. The pressure limiter will keep most
car and light truck tires from inflating beyond 60
PSI (smaller tires may reach higher pressures). It
is the operator’s responsibility to follow all instruc-
tions and to control inflation pressure as specified
in these instructions. Check the function of the
pressure limiter regularly and maintain it accord-
ing to the instructions provided in this manual for
safe and proper operation. Do not tamper with or
attempt to adjust the pressure limiter. Tires requir-
ing inflation beyond 60 PSI should be inflated in a
safety cage.
Tire Pressure Tire Inflation
Inflation Pedal Positions

Important: Always read and follow operating instructions. • 15
Bead Sealing
1. Remove the valve core from the valve stem to
allow more air flow into the tire to assist with bead
seal.
2. Position valve stem in front of operator and con-
nect the inflation hose with the clip-on chuck. Hold
tire up against upper edge of the wheel. Be sure tire’s
top bead does not cover the bottom of the valve stem
(figure 27).
Figure 27 - Lift Tire Upwards for Bead Sealing
3. Depress inflation pedal to position 2 and hold to
begin air flow through tire valve.
4. If tire beads do not seal, then use the Auxiliary
Bead Sealer (ABS), see figure 28. Verify that both
beads are completely sealed to the wheel. Repeat
these steps if beads have not sealed. It may be neces-
sary to wait a few seconds for the air storage tank
pressure to recover before attempting again.
Figure 28 - If Necessary, Use ABS for Bead Sealing
5. After bead seal is achieved, remove the clip-on
chuck and reinstall the valve core. Reattach the clip-on
chuck after core is installed.
Bead Seating
NEVER exceed 40 PSI to seat beads while
using this tire changer. If more than 40 PSI
is permitted by tire manufacturer, ALWAYS
use safety cage and clip-on chuck. NEVER
exceed recommended pressure after seat-
ing beads. ALWAYS keep hands and entire
body back from inflating tire.
An exploding tire, wheel, or bead sealing
equipment may propel upward and out-
ward with sufficient force to cause serious
injury or death to operator or bystander.
Check tire pressure frequently. If operator
is unable to obtain Bead Seat, something
is wrong. Deflate tire completely, inspect
tire and wheel, correct any problems found,
relubricate both tire beads, and reattempt
Bead Seal and Seat procedures. Follow all
safety instructions in this manual and on
machine.
1. Once tire pressure is indicated on the air gauge
(inflation pedal in position 1; foot removed from pedal),
continue to inject air into the tire (inflation pedal posi-
tion 2) in short intervals. Check the pressure frequently.
Stand back during bead seat. Keep hands, arms, and
entire body away
from tire during this
procedure (figure
29).
Tire beads should
move outward and
“pop” into their
bead seat position
as pressure inside
the tire increases.
If this does not
happen, a problem
exists. Investigate
carefully.
Important: Do
not continue to add
air pressure to force
bead seat.
Figure 29 - Stand Back during Bead Seat

16 • Important: Always read and follow operating instructions.
Inflation
NEVER exceed tire manufacturer's recom-
mended air pressure. Tires can explode,
especially if inflated beyond these limits.
Use clip-on air chuck, keep hands, arms
and entire body back from inflating tire.
Avoid distraction during inflation. Check
tire pressure frequently to avoid over infla-
tion. Excessive pressure can cause tires to
explode, causing serious injury or death to
operator or bystander.
If you change tires defined as truck tires,
they must be inflated per OSHA instruc-
tions.
1. Make sure both beads are seated. When both
beads are seated, the tire is ready for inflation.
2. Replace the valve core if it was removed.
3. Depress the inflation pedal to position 2 to inflate
the tire. The pressure limiter will cycle the air flow as
described earlier. On most tires, the pressure limiter
will cease air flow at approximately 60 PSI. On smaller
volume tires the pressure may be higher.
4. Release air pressure from tire by pressing the
manual release valve button (inflation hose must be
attached to the valve stem, Figure 30). Never add or
adjust tire pressure using an air hose without a clip-on
air chuck and in-line valve. Do not use a hand-held
style chuck (figure 31).
5. Important: When inflating tires that require more
than 60 PSI, always use a safety cage and air hose
with a clip-on air chuck and in-line valve. The air hose
must have enough length between the chuck and the
operation/in-line valve to allow the operator to stand
outside the trajectory.
Figure 30 - Location of Manual Release Valve
Figure 31 - Do Not Use a Hand-held Style Air Chuck
Manual Release Valve
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)
Explosion Hazard
Never inate tire
above
manufacturer’s
recommended
pressure after
bead is seated.