Coats gts series 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 vi.
Operating
Instructions
on page 4.
GTS50/60/70 and GTS90
Rim Clamp®Tire Changers
For servicing single piece automotive and most tubeless
light truck tire/wheel assemblies.
Any other type, including tube type and agricultural, require special handling.
Tires identified as truck tires need to adhere to OSHA standard 1910.177.
1601 J. P. Hennessy Drive, LaVergne, TN USA 37086 615/641-7533 800/688/6359 www.coatsgarage.com Manual Part No.: 85610001 06
HENNESSY INDUSTRIES INC. Manufacturer of AMMCO®, COATS®and BADA®Automotive Service Equipment and Tools. Revision: 09/17

ii • Important: Always read and follow operating instructions.
Read entire manual before assembling,
installing, operating, or servicing this
equipment.
NOTICE

Important: Always read and follow operating instructions. • iii
Table of Contents
Tire Specifications Diagram ..............................................iv
Safety Instructions ..............................................................v
Owner’s Responsibility.......................................................v
Operator Protective Equipment .........................................v
Definitions of Hazard Levels ..............................................v
Safety Notices and Decals ................................................ vi
Remember R.I.M. ............................................................. vi
Setup Instructions ...............................................................1
Location..............................................................................1
Workspace Requirements..................................................1
Air Source...........................................................................1
Electrical Source.................................................................1
Floor Mounting...................................................................1
Principal Operating Parts....................................................2
Know Your Unit...................................................................2
Operating Instructions ........................................................5
Tire Bead Loosening and Demounting...............................5
Tire Mounting.....................................................................9
Inflation .............................................................................. 11
Bead Sealing ....................................................................12
Bead Seating ....................................................................13
Inflation.............................................................................14
Stages of Inflation on a Conventional Tire and Rim ......15
Bead Sealing ....................................................................15
Bead Seating ....................................................................15
Inflation.............................................................................15
Mismatched Tires and Wheels..........................................16
Custom and Special Wheels.............................................17
Alloy Wheels.....................................................................17
European Performance Wheels (Asymmetrical Hump)....17
Wheels with Low Pressure Warning Sensors..................17
Tube Type Tires ...................................................................17
Mounting.......................................................................... 17
Demounting......................................................................17
Maintenance Instructions .................................................18
Duckhead® Mount/Demount Tool Cleaning .....................19
Pressure Limiter Maintenance (if equipped)....................19
Oil Injector Maintenance..................................................20
Decal Locations .................................................................21

iv • Important: Always read and follow operating instructions.
T
I
R
E
N
A
M
E
P
2
1
5
/
6
5
R
1
5
9
5
H
M
+
S
M
A
N
U
F
A
C
T
U
R
E
R
T
R
E
A
D
W
E
A
R
2
2
0
T
R
A
C
T
I
O
N
A
T
E
M
P
E
R
A
T
U
R
E
A
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
R
A
D
I
A
L
T
U
B
E
L
E
S
S
D
O
T
M
A
L
9
A
B
C
0
3
6
T
R
E
A
D
4
P
L
I
E
S
2
X
X
X
X
X
C
O
R
D
S
I
D
E
W
A
L
L
2
P
L
I
E
S
2
X
X
X
X
X
C
O
R
D
M
A
X
.
L
O
A
D
1
3
0
0
L
B
S
M
A
X
.
P
R
E
S
S
.
3
5
P
S
I
Tire Specifications Diagram

Important: Always read and follow operating instructions. • v
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 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 authorized
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. 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.
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:
WARNING
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!

vi • Important: Always read and follow operating instructions.
Safety Notices and Decals
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.coatsgarage.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
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 follow-
ing 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 explo-
sion. 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

Important: Always read and follow operating instructions. • 1
Setup Instructions
Proper unit installation is necessary for safe
use and efficient operation. Proper installa-
tion also helps protect the unit from dam-
age and makes service easier. Always place
safety poster and instructions near the unit.
Location
Select a location using the drawings below. The area
should provide the operator with enough space to use
the equipment in a safe manner. The area selected
should be well lit, easy to clean and should be away
from oil, grease, brake lathe chips, etc. Avoid areas
where bystanders and customers may be present.
Workspace Requirements
Air Source
The all-air models require a 14 to 15 CFM air source
at 150 PSI. The air/electric models require a 5 CFM air
source at 150 PSI. The operating pressure for all models
is 120 PSI at the machine.
The unit is furnished with a 1/4-inch pipe thread male
fitting for easy connection. This connection is located on
the right side of the rear of the machine. A 1/4-inch ID
hose (or pipe) for connection to the machine is satisfac-
tory. Sufficient air pressure ensures good performance.
Electrical Source
Electrical models require power as follows:
15 amp, 115V electrical circuit, single phase
15 amp, 230V electrical circuit, single phase (Export)
Refer to the caution decal that is located by the unit’s
power cord.
Refer to the serial tag located on the lower part of
the machine for specific electrical requirements for
the unit. Have a licensed electrical technician perform
any necessary changes to the power source before
plugging in the unit. The electrical source must have a
solid connection (less than 1 ohm) between ground and
building ground.
Floor Mounting
As Hennessy can not be certain of the environment
and conditions of the locations where the equipment
will be installed, it is recommended that the safety
manager review the shop floor conditions and local
regulatory practices to determine if bolting of the equip-
ment to the shop floor is necessary or advisable.
GTS90 with Robo-Arm®

2 • Important: Always read and follow operating instructions.
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.
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.
Replace any damaged or missing safety
decals. They are available from COATS, (800)
688-6359.
1Tilt Tower — Support for horizontal and vertical
slides.
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
nozzle is released.
4Important Safety Decal — Important safety infor-
mation for the operator. DO NOT obstruct with tire
stickers or other materials.
*5 Bead Sealing Nozzle — Some models are equipped
with a single-point nozzle bead sealer. Expands tire
sidewall to bead seat area of rim to seal tire to rim and
allow inflation.
6Inflation Pedal — Three-position pedal that registers
tire pressure, allows inflation of tires through air hose
and clip-on chuck or allows air flow through bead sealing
nozzle.
7Robo-Arm®(if equipped) — Provides extra leverage
for runflat and low profile tires.
8Robo-Arm Valve (if equipped) — Controls verti-
cal movement of robo-arm slide cylinder. Used to set
correct vertical position to maintain robo-arm disk-asist
wheel clearance.
3
4
1
6
5
7
8
9
2
Single-Point Nozzle

Important: Always read and follow operating instructions. • 3
10
12
13 14 15 16
18
17
20
22
19
9Slide Locking Valve — Locks and unlocks hori-
zontal/vertical slide and sets correct vertical/horizontal
position to maintain Duckhead®mount/demount tool to
wheel clearance.
10 DuckHead Mount/Demount Tool — Used to
mount and demount tire from wheel.
11 Clamps — Holds wheel to table top for tire chang-
ing. Position outward to allow outside clamping of
wheels.
12 Table Top — Rotating chuck for tire changing.
13 Clamp Control Pedal — Three-position pedal that
opens, holds or closes rim clamps.
14 Tower Tilt Pedal — Two-position pedal that moves
tower forward or back.
15Table Top Pedal — Four-position pedal that controls
rotation of table top (forward-fast, forward-slow, off,
reverse).
16 Bead Lifting Tool — Used to lift and position tire
bead correctly on Duckhead mount/demount tool.
17 Tire Bumper Guards — Provides protective sur-
face when bead loosening tires.
18 Bead Loosener Shoe — Pivoting shoe for loosen-
ing tire beads.
*19 Lube Bucket — Dispenser for rubber lubricant.
20 Bead Loosener Handle — Pull handle up or down
to control operation of bead loosener shoe.
21 Horizontal Disk-Assist Control Lever — Locks
and unlocks horizontal slide. Used to position disk-assist
for bead lubrication, assist with tire mounting, and
demounting lower bead without tire tool.
22 Disk-Assist Hitch Pin (if equipped) — Allows
extra clearance when tire changing large diameter
wheel assembles.
23 Disk-Assist Position Lock (if equipped) — Locks
and unlocks horizontal slide to flip the disk-assist for
either upper or lower bead positioning.
*Not Shown
11 21
23

4 • Important: Always read and follow operating instructions.
24 Robotic Arm ControlValve — Controls vertical movement of robotic arm cylinder.
25 Robo-Arm® — Provides extra leverage for runflat and low profile tires.
26 Leverless Bead LifterTool — 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.
27 Leverless Bead Lifter Control — Controls vertical movement of Leverless Bead
Lifter
Tool.
28 Robo-Assist™ — Roller provides extra leverage for runflat and low profile tires.
GTS-90

Important: Always read and follow operating instructions. • 5
Narrow Side
Drop Center
Long Side
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 instruc-
tions near the machine for easy reference.
Tire 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.
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 Duckhead®
mount/demount tool contacting the rim causing
scratches. On alloy wheels, always rotate the
wheel one turn after setting the mount/demount
tool to insure proper wheel clamping.
Note: Always review with the owner any nicks and
scratches on expensive wheel and tire combina-
tions prior to servicing.
Note: Review the performance wheel section of
this manual prior to servicing performance tire/
wheel combinations.
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
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: The clamps on the table top may extend
beyond the table top itself. To avoid damaging
clamps, move them to their full inward position
before positioning a tire for bead loosening.
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 (or pull) to position the bead loosener
shoe away from the machine and roll wheel into posi-
tion. 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 hand valve to position the shoe and loosen
the bead. It may be necessary to loosen the bead in
multiple locations around the tire (figure 3).

6 • Important: Always read and follow operating instructions.
Valve Stem at
2 o’clock Position
Narrow Side
Mounting Side Up
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).
Figure 4 - Position Tire and Bead Loosener Shoe With Wheel
Turned Around and Valve Stem in 2 o’clock Position.
Note: It will be easier to outside clamp the wheel
to the table top if the long side of the rim is loos-
ened last.
4. Apply tire manufacturer’s approved rubber lubricant
liberally to entire circumference of both tire beads after
loosening (figure 5).
Figure 5 - Apply Rubber Lubricant to Tire Beads
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 inner holes for 6-22-inch diameter wheels
• Use outer holes for 8-24-inch diameter wheels
6. Place tire/wheel assembly on table top with mount-
ing side up (figure 6).
Figure 6 - Place Tire/Wheel Assembly on Table top
Clamp control pedal must be in the full up
or full down position (detent position) to
maintain clamping force on wheel.
7. If equipped, use Robo-Arm with cone 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 (toggle 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 out-
ward against wheel). Clamp alloy and custom wheels
from the outside (clamps push inward against the
outside rim edge). Refer to the Performance Tires and
Wheels section.
Figure 7 - Robo-Arm®Aids Clamping

Important: Always read and follow operating instructions. • 7
A B C
Valve Stem
Push down
8. Take time to experiment with the Duckhead®
mount/demount tool locking system (figure 8).
Figure 8 - Position slide lock as shown, A- Slide/duckhead
locked in fully retracted position, B- Slide/duckhead unlocked
for positioning, and C- Slide/duckhead locked into position
Before tilting tower forward, always be sure
Duckhead mount/demount tool is in the
fully retracted position. 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.
9. Using foot pedal,
position tower forward
(figure 9). See figure
8 for mount/demount
tool movement and
locking. With tower for-
ward, press the slide
lock valve button to
allow mount/demount
tool to descend on the
tire sidewall (figure 9).
Then move the mount/
demount tool toward
rim and release the
locking button.
Figure 9 - Position Mount/
Demount Tool
10. Check mount/demount tool positioning. A metal
Duckhead mount/demount tool will move up and back
about 1/8-inch from the rim edge after it is locked. This
clearance will be maintained as long as the slide locking
valve remains locked. The operator may move the tower
back out of the way and back into place again without
needing to reposition the mount/demount tool (when
clamping a like set of wheels).
Note: If equipped, when positioning the mount/
demount tool toward rim, use disk-assist in upper
position to press down on tire sidewall (figure 10).
Once the bead lifting tool is in place, raise the
Disk-assit off the tire.
At times during the mounting and demount-
ing 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.
11. Apply tire manufacturer’s approved rubber lubri-
cant liberally to entire circumference of both beads after
bead loosening and clamping wheel on table top.
Figure 10 - Apply Rubber Lubricant to the Beads
Note: If equipped, use disk-assist in upper position
to hold down the top bead (figure 10), while rotat-
ing wheel to make tire lubrication easier.
Note: Normal table top rotation for demounting is
clockwise. Depress table top pedal to rotate this
direction. To rotate table top counterclockwise, lift
pedal up with your toe.
Note:Table top rotation can be stopped at any time
by removing your foot from the rotation pedal.
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. Lift the bead up and over
the knob on the demount tool (figure 11). Also, note the
valve stem position to the demount tool.
Figure 11 - Insert Bead Lifting Tool

8 • Important: Always read and follow operating instructions.
Disk-assist Stowed
Disk-assist Hitch Pin
Hitch Pin
Note: If equipped, use disk-assist in upper position
to press down on tire sidewall in front of mount/
demount tool. It will aid in locating the bead lifting
tool over forward end of mount/demount tool and
below the top bead of the tire (figure 11).
13. Depress the table top pedal to rotate the wheel.
The Duckhead demount tool will guide the tire bead up
and over the edge of the wheel. Continue rotation until
the upper tire bead is demounted.
Figure 12 - Demount Upper Bead
Note: Push down on tire (if equipped, use Robo-
Arm®) across from the demount tool during table
top rotation to utilize drop center area of the
wheel. This reduces tensional force on the top or
first bead during demount.
14. 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 14). 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 13).
Figure 13 - Guide Lower Bead Over Knob On Demount Tool
Note: If equipped, use disk-assist in lower position
and clear of table top rotation to aid in pushing up
on lower bead of the tire (figure 14. This helps the
tire to not slide out of drop center and back on to
the rim.
Figure 14 - Disk-assist Aiding Lower Bead Demount
Note: If equipped, use the disk-assist to aid in
changing large diameter tires. When moving the
disk-assist from the upper position to the lower
position, it may be necessary to stow the disk-
assit away (figure 15) by removing the hitch pin.
Figure 15 - Stow the Disk-assist Away
15. Depress the table top 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.
16. Depress the tower pedal to move the tilt tower in
the backward position to remove the tire.

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.
WARNING
Check tire and wheel carefully before mount-
ing. Make sure the tire bead diameter and
wheel diameter match exactly. Consult the
tire manufacturer’s recommendations, Tire
Guide and/or Rubber Manufacturer’s Asso-
ciation for approved rim widths for tire sizes.
WARNING
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.
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 carefully.
Do not let untrained persons operate tire
changer and keep bystanders out of service
area.
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 damaged tire.
1. Before any mounting, inspect tire for damage and
verify size match between tire and wheel (figure 16).
Figure 16 - Verify Size Match Between Tire and Wheel
2. Inspect wheel closely for damage. Clean the wheel
and remove any light corrosion or rubber residue (figure
17). Do not attempt to service a heavily corroded wheel,
damaged wheel, or bent wheel.
Figure 17 - 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 18).
Figure 18 - Lubricate Tire Beads Liberally

10 • Important: Always read and follow operating instructions.
4. Place tire over wheel and move tower arm into
position. Position tire so that lower bead is above the
rear extension of the Duckhead®mount/demount tool
and below the front knob (figure 19). Make sure the
valve stem is at the 9 o’clock position in front of bead
lock to prevent TPMS sensor damage.
Figure 19 - Position Tire Against Mount/Demount Tool
5. Depress table top pedal and rotate wheel to mount
lower bead. Use drop center of wheel by pushing down
on tire just ahead of the mounting tool, and follow as tire
rotates. Rotate table top until lower bead is mounted.
6. For top bead installation, rotate table top until
the valve stem is directly across from the mount/
demount tool. Lift the upper bead up and over the rear
of the mount/demount tool. Press down on tire sidewall
between mount/demount tool and valve stem to hold
tire in rim drop center (figure 21).
Note: If equipped, use disk-assist in upper position
to press down on tire sidewall in front of mount/
demount tool. This helps keep the upper tire bead
in the drop center of the rim (figure 21).
Note: If equipped, use Robo-Arm®to push down
on tire (figure 21) 90 degrees clockwise from
mount/demount tool to allow bead to utilize drop
center area of rim.
Fig 21 - Hold Tire Bead In Rim Drop Center
7. Depress table top pedal and rotate tire until the
top tire bead is mounted. Continue to press down on
the tire to ensure bead stays in the rim drop center area
ahead of mount/demount tool.
Note: If equipped, use Robo-Arm to press down
on tire sidewall between Robo-Arm and disk-assist
to hold tire in rim drop center. When the Robo-Arm
is 180 degrees from the mounting tool, begin to lift
the disk-assist off the tire.
Note: If table top rotation stalls, reverse the table
top momentarily until tire bead is again loose on
the wheel. Reposition tire on mount/demount tool
making sure bead is correctly positioned in drop
center of the wheel; then attempt mounting again.
8. Depress the tower pedal to move the tilt tower
in the backward position to remove the tire/wheel
assembly.

Important: Always read and follow operating instructions. • 11
Tire Pressure Tire Inflation Bead Sealing
Inflation Pedal Positions
Inflation
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.
The clip-on chuck allows the operator to
keep hands and entire body back from inflat-
ing tire.The chuck must be an open/freeflow
style with all parts in proper working order.
Check for proper inflation gauge operation.
Accurate pressure readings are important
to safe tire inflation. Refer to the Operat-
ing Maintenance section of this manual for
instructions.
If the rim has been clamped from the outside
for tire mounting, release the clamps, lift the
tire, and move the clamps to the center of
the table top.
If the wheel/tire has a diameter larger than
14-inches and is difficult to bead seal, the
clamps should be moved to the center of the
table top for the bead seal operation.
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 three 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.
Position 3 - Bead Sealing – This is the second and
last activated position. With the inflation hose attached
to the tire valve and the pedal in this position, line pres-
sure is allowed to flow through the valve and to the
air-flate bead seal jets on the table top for bead sealing.
Note: Some models use a single-point nozzle bead
sealer.
1. If the rim has been clamped from the outside for
tire mounting, release the clamps, lift the tire, and move
the clamps to the center of the table top.
Note the Inflation Pedal Positions (See Diagram)

12 • Important: Always read and follow operating instructions.
Use of bead sealing jets without a tire in
place can cause dirt and debris to be blown
into the air with enough force to injure
operator and/or bystander. Do not use the
bead sealing control position to inflate a tire.
Note: This unit is equipped with a pressure limiter
to assist the operator with proper tire inflation.
When the inflation pedal is held in position 2,
the pressure limiter cycles the system between
position 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.
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 24).
Figure 24 - Lift Tire Upwards for Bead Sealing
3. Depress inflation pedal to position 2 and hold
about one second to begin air flow through tire valve,
then depress pedal to position 3 and hold briefly — less
than one full second. The blast of air from the jet(s) will
expand tire and seal the beads.
4. Release the inflation pedal and allow it to return to
position 1. Verify that both beads are completely sealed
to the wheel. Repeat these steps if beads have not
sealed. It may be necessary to wait a few seconds for
the air storage tank pressure to recover before attempt-
ing again.
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.

Important: Always read and follow operating instructions. • 13
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 seating
beads. ALWAYS keep hands and entire body
back from inflating tire.
An exploding tire, wheel, or bead sealing
equipment may propel upward and outward
with sufficient force to cause serious injury
or death to operator or bystander.
WARNING
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, relu-
bricate 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
25).
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 25 - Stand Back during Bead Seat

14 • Important: Always read and follow operating instructions.
Manual Release Valve
Inflation
WARNING
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.
WARNING
If you change tires defined as truck tires,
they must be inflated per OSHA instructions.
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 26). 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 27).
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 opera-
tion/in-line valve to allow the operator to stand outside
the trajectory.
Figure 26 - Location of Manual Release Valve
Figure 27 - Do Not Use a Hand-held Style Air Chuck
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 vi and back cover)
Explosion Hazard
Never inflate tire
above
manufacturer’s
recommended
pressure after
bead is seated.