Coats Rim Clamp APX80E User manual

APX80A/APX80E
APX90A/APX90E
Rim Clamp®Tire Changer
For servicing single piece automotive and most light truck
tire/wheel assemblies
1601 J. P. Hennessy Drive, LaVergne, TN USA 37086-3565 615/641-7533 800/688-6359
HENNESSY INDUSTRIES INC. Manufacturer of AMMCO®
, COATS®and BADA®Automotive Service Equipment and Tools.
Manual Part No.: 85000226 11
Revision: 06/17
Installation Instructions
Operating Instructions
Safety 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.
See
RIM Safety page iv
¨Operating
Instructions
page 4
Unload Instructions
page 18
* APX 90 Shown

ii • Important: Always read and follow the operating instructions.
Tire Specifications Diagram
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

Important: Always read and follow the operating instructions. • iii
Safety Instructions
Owner's Responsibility
To maintain machine and user safety, the responsi-
bility of the owner is to read and follow these instruc-
tions:
• Follow all installation instructions.
• Make sure installation conforms to all appli-
cable Local, State, and Federal Codes, Rules,
and Regulations; such as State and Federal
OSHA Regulations and Electrical Codes.
• Carefully check the unit for correct initial
function.
• Read and follow the safety instructions.
Keep them readily available for machine oper-
ators.
• 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 safety features.
Operator Protective Equipment
Personal protective equipment helps make tire serv-
icing 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 dur-
ing 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 hear-
ing 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:
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!

iv • Important: Always read and follow the operating instructions.
Safety Notices and Decals
Failure to follow danger, warning, and cau-
tion instructions may lead to serious per-
sonal 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, con-
tact:
Hennessy Industries, Inc.
1601 J.P. Hennessy Drive
LaVergne, TN 37086-3565
[phone] or [phone]
www.ammcoats.com
For additional information contact:
Rubber Manufacturers Association
1400 K Street N. W.
Washington, DC 20005
[phone]
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 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 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
Decal Part No. 85611138

Important: Always read and follow the operating instructions. • 1
Table of Contents
Tire Specifications Diagram . . . . . . . . . . . . . .ii
Safety Instructions . . . . . . . . . . . . . . . . . . . . .iii
Owner's Responsibility . . . . . . . . . . . . . . . . . . . . . .iii
Operator Protective Equipment . . . . . . . . . . . . . . .iii
Definitions of Hazard 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
Maintenance Instructions . . . . . . . . . . .16 - 18
Separator/Lubricator Maintenance
(If equipped) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Oil Injector Maintenance (If equipped) . . . . . . . . .17
Pressure Limiter Maintenance . . . . . . . . . . . . . . .18
Unload and Installation
Instructions . . . . . . . . . . . . . . . . . . . . . . .19 - 22
Machine Delivery Unload Procedure . . . . . . . . . . .19
APX90 Unload Instruction . . . . . . . . . . . . . . . . . . .20
APX80 Unload Instruction . . . . . . . . . . . . . . . . . . .21
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Air Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Electrical Source . . . . . . . . . . . . . . . . . . . . . . . . . .22
Floor Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . .22
NOTICE
Read entire manual before assembling,
installing, operating, or servicing this
equipment.

2 • Important: Always read and follow the operating instructions.
Principal Operating Parts Know Your Unit
Compare this illustration with the unit before placing it
into service. Maximum performance and safety will be
obtained only when all persons using the unit are fully
trained in its parts and operation. Each user should learn
the function and location, of all controls.
Prevent accidents and injuries by ensuring the unit is
properly installed, operated and maintained.
Do It Now!
Now is a good time to
fill out the Owner's
Registry Card.
ARobo Arm™—Provides extra leverage for runflat and
low profile tires.
BBead Loosener Handle — Pull handle up or down
that controls operation of bead loosener shoe.
CBead Loosener Shoe —Pivoting shoe for loosening
tire beads.
DTire Bumper Guards —Provides protective surface
when bead loosening tires.
ETire Lift — Helps position tire/wheel assemblies (if
equipped).
FClamps —Holds wheel to tabletop for tire changing.
Position outward to allow outside clamping of
wheels.
GDuckhead®Roller — Attachment for DuckHead to
aid in Mounting tire on the wheel.
HDuckHead®—Mounts and demounts tire from
wheel.
IRoboRoller —Provides extra leverage for runflat and
low profile tires (if equipped).
JHorizontal Power Rollers — Helps with bead lubri-
cation, assists with mounting, and demounts lower
bead without tire tool.
D
B
F
I
C
E
H
A
G
J
3

Important: Always read and follow the operating instructions. • 3
KImportant Safety Decal — Important safety infor-
mation for the operator. DO NOT obstruct with tire
stickers or other materials.
LTire Lift Control Pedal — Three position pedal that
raises or lowers the tire lift ramp.
MClamp Control Pedal — Three-position pedal that
opens, holds, or closes rim clamps.
NTower Tilt Pedal — Two-position pedal that moves
tower forward or back.
OTabletop Pedal — Three-position pedal that controls
rotation of tabletop (forward, off, reverse).
PInflation Pedal — Three-position pedal that allows
inflation of tires through air hose and clip-on chuck.
RBead Sealing Nozzles — Expands tire sidewall to
bead seat area of rim to seal tire to rim and allow
inflation..
SLube Bucket —Dispenser for rubber lubricant.
TBead Lifting Tool — Used to lift and position tire
bead correctly on duckhead®
.
ULube Bottle —Dispenser for rubber lubricant.
WTower —Support for horizontal and vertical slides.
XSlide Locking Valve — Locks and unlocks horizon-
tal/vertical slide and sets correct vertical/horizontal
position to maintain duckhead/wheel clearance.
YAir Inflation Gauge —Registers tire pressure when
clip-on chuck is attached to tire valve stem and infla-
tion pedal is released.
ZRelease Valve — Allows the manual release of air
pressure from tire when clip-on chuck is attached to
tire valve.
O
N
P
S
K
LM
U
W
ZY
T
X
R

4 • Important: Always read and follow the operating instructions.
Operating Instructions
This unit must be properly operated and properly
maintained to help avoid accidents that could damage
the unit and injure the operator or bystanders. This sec-
tion 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.
Bead Loosening and Demounting
This machine may operate differently from
machines you have previously operated.
Practice with a regular steel wheel and tire
combination to familiarize yourself with the
machine's operation and function.
A. Remember to remove all weights from both
sides of the wheel. Weights left on backside
of wheel may cause the wheel to be clamped
unleveled. This may result in the combination
Duckhead®contacting the rim causing
scratches. On alloy wheels, always rotate the
wheel one turn after setting the Duckhead to
insure proper wheel chucking.
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.
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 intro-
duced 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.
D. Always loosen the bead on the narrow side
of the wheel's drop center first. See figure 2
for more information on the drop center.
Figure 2 - Determine Narrow Side of Wheel
E. The clamps on the tabletop may extend
beyond the tabletop itself. To avoid damaging
the clamps, move them to their full inward
position before positioning a tire for bead loos-
ening.
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 to position the bead loosener shoe
away from the machine and roll wheel into position.
The valve stem should be in the 11 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).
Long Side
Drop Center
Narrow Side

Important: Always read and follow the operating instructions. • 5
Figure 3 - Position Tire and Bead Loosener Shoe
3. Turn the wheel around and repeat loosening pro-
cedure on the other side of the wheel (figure 4). Note
that the valve is placed at 11 o'clock for the initial loos-
ening procedure to accommodate a possible asym-
metric safety hump type rim.
Figure 4 - Position Tire and Bead Loosener Shoe with Wheel
Turned Around
G. It will be easier to outside clamp the wheel
to the tabletop if the long side of the rim is
loosened last.
4. Determine the mounting side of the wheel. The
mounting side is the narrow side of the drop center
(tire removed in figure 2 for clarity).
Clamp control pedal must be in the full up
or full down position (detent position) to
maintain clamping force on wheel.
5. Preposition tabletop clamps. Use the clamp con-
trol pedal to move the clamps inward (push pedal
down). Use the clamp control pedal to move the
clamps outward (lift pedal up). Engage the detent posi-
tion (pedal in full up or full down position) to maintain
clamped or unclamped pedal position.
Avoid back injury, use the tire lift or ask
another operator for assistance when lifting
tire/rim assemblies onto the tire changer.
6. Lift wheel to tabletop or, if equipped, roll
tire/wheel assembly on the tire lift bar. Keep wheel
vertical and press foot pedal to raise wheel up. Now
rotate wheel for placement on tabletop (figure 5).
Figure 5 - Lift Wheel to Tabletop
7. Roll tire/wheel assembly on tabletop with mount-
ing side up (figure 6).
Figure 6 - Clamp Outside on Mag Wheels
Clamp control pedal must be in the full up
or full down position (detent position) to
maintain clamping force on wheel.
8. Use Robo Arm to apply pressure to aid in clamp-
ing rim (figure 7). Use the clamp control pedal to move
the clamps inward (push pedal down). Use the clamp
control pedal to move the clamps outward (lift pedal
up). Engage the detent position (pedal in full up or full
down position) to maintain clamped or unclamped
pedal position.
Figure 7 - Robo Arm Aids Clamping
Valve Stem

6 • Important: Always read and follow the operating instructions.
9. Take time to experiment with the Duckhead®lock-
ing system (figure 8).
Figure 8 - Turn Slide Lock to Color As Shown, AGreen -
Duckhead Retracks Up, BYellow - Duckhead Descends
Slowly, and CRed - Duckhead Locks into Position
Make sure the Duckhead is in the retracted
position before moving the tower forward,
to prevent wheel damage.
10. Using the foot pedal, position the tower forward
(figure 9). See figure 8 for Duckhead movement and
locking. With the tower forward, allow tool to descend
on the tire sidewall (figure 9). Then move the tool
toward the rim and actuate the locking button. As the
tool locks into place, the Duckhead will move up and
back about 1/8-inch.
Figure 9 - Position Duckhead
11. Check Duckhead®positioning. A plastic
Duckhead should not be very close to 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
Duckhead (when clamping a like set of wheels).
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.
K. Normal tabletop rotation for demounting is
clockwise. Depress the tabletop pedal to
rotate this direction. To rotate the tabletop
counterclockwise, lift the pedal up with your
toe.
L. Tabletop rotation can be stopped at any
time by removing your foot from the rotation
pedal.
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. Apply tire manufacturer's approved rubber lubri-
cant liberally to entire circumference of both beads
after loosening and placing on tabletop. Using the top
bead loosening roller to hold down top bead while
rotating wheel will make lubrication easier (figure 10).
Figure 10 - Apply Rubber Lubricant to the Beads
13. Insert smooth curved end of the bead lifting tool
over the clockwise end of Duckhead and below the
upper bead of the tire. Lift the bead up and over the
knob on the Duckhead (figure 11). Also, note the valve
stem position to the Duckhead, this position reduces
stresses in the bead and allows an easier bead lift.
Use Robo Arm to push down on the tire opposite the
Duckhead to allow bead to utilize the drop center area
of the rim.
ABC

Important: Always read and follow the operating instructions. • 7
Figure 11 - Insert Bead Lifting Tool
14. Depress the tabletop pedal to rotate the wheel.
The Duckhead will guide the tire bead up and over the
edge of the wheel (figure 12). Continue rotation until
the upper bead is demounted.
Figure 12 - Demount Upper Bead
15. For lower bead removal use Robo Arm™to lift
the tire up (figure 13) and position the lower horizontal
power roller (figure 14) under the tire.
Figure 13 - Lift the Tire for Lower Bead Removal
Figure 14 -Position Lower Horizontal Power Roller
16. With the tire in position, depress the foot pedal
to rotate the tire. The bead loosening roller will guide
the lower tire bead off of the rim.
M. With tube-type tires, demount the upper
bead and remove the tube before demounting
the lower bead.
Valve Stem

8 • Important: Always read and follow the operating instructions.
Mounting
This information must be read and followed carefully
to prevent accidents and injuries during mounting.
Attempts to force a bead seat on mis-
matched tires and wheels can cause the tire
to violently explode, causing serious per-
sonal injury or death to operator and/or
bystanders.
Check tire and wheel carefully before
mounting. Make sure the tire bead diame-
ter and wheel diameter match exactly.
Consult the 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.
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. 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 (fig. 15).
Figure 15 - Verify Size Match Between Tire and Wheel
2. Inspect wheel closely for damage. Clean wheel
and remove any light corrosion or rubber residue (fig-
ure 16). Do not attempt to service a heavily corroded
wheel, damaged wheel, or bent wheel.
Figure 16 - 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 17).
Figure 17 - Lubricate Tire Beads Liberally
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®and below the front
knob (figure 18).
Remember R.I.M. (Read, Inspect, Mount) for every tire.

Important: Always read and follow the operating instructions. • 9
Figure 18 - Position Tire Against Duckhead®
5. Depress tabletop pedal and rotate wheel to
mount lower bead. Use drop center of wheel by forc-
ing down on, tire just ahead of the mounting tool, and
follow as tire rotates (figure 19). Rotate tabletop until
lower bead is mounted.
Figure 19 - Mounting Lower Bead
6. For top bead installation, attach the Duckhead
Roller™to the Duckhead, then rotate tabletop until the
valve stem on wheel is 90 degrees ahead of the
Duckhead (at 3 o'clock position), see figure 20.
Figure 20 - Position Valve Stem 90º Ahead of Duckhead
7. Using horizontal power roller, press down on tire
sidewall between Duckhead and valve stem to hold
tire in rim drop center. The bead should also be under
right side of the knob on Duckhead (figure 21A).
Figure 21A - Use Power Roller To Hold Tire In Rim Drop
Center
8. Use RoboArm™to push down on tire opposite
Duckhead to allow bead to utilize drop center area of rim.
Fig 21B - Use RoboArm To Hold Tire In Rim Drop Center
9. Depress tabletop pedal to rotate the wheel. Use
RoboRoller (if equipped) to press down on tire sidewall
between RoboArm and horizontal power roller to hold
tire in rim drop center.
Fig 22 - Use RoboRoller (if equipped) To Hold Tire In Rim Drop
Center
10. Depress tabletop pedal and rotate tire until bead
is mounted. Be careful to assure bead stays in the rim
drop center in the area ahead of Duckhead.
P. If tabletop rotation stalls, reverse tabletop
momentarily until tire bead is again loose on
the wheel. Reposition tire on Duckhead, make
sure bead is correctly positioned in drop center
of the wheel; then attempt mounting again.
R. For tube type tires, mount lower bead first,
move tower back, install tube, and then mount
upper bead.
90º

10 • Important: Always read and follow the operating instructions.
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 pro-
ceeding.
Tire failure under pressure is hazardous.This
tire changer Will Not Restrain Exploding
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
inflating 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 Operating
Maintenance section of this manual for
instructions.
The inflation pedal, located at the center 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
should 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 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 tabletop for bead sealing.
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 tabletop.
The inflation pedal, located at the center of the left
side of the machine, controls the flow of air through
the inflation hose.
Note the Inflation Pedal Positions (See Diagram)

Important: Always read and follow the operating instructions. • 11
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.
R. 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 machine
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 with the use of
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
instructions and to control inflation pressure as
specified in these instructions. Check the
function of the pressure limiter regularly and
maintain it according to the instructions pro-
vided in this manual for safe and proper oper-
ation. Do not tamper with or attempt to adjust
the pressure limiter. Tires requiring inflation
beyond 60 PSI should be inflated in a safety
cage.
Bead Sealing
1. 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 (fig-
ure 23).
Figure 23 - Lift Tire Upwards for Bead Sealing
2. 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 jets will
expand tire and seal the beads.
3. 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
attempting again.
S. If tire and wheel are properly lubricated and
operator cannot achieve bead seal after three
or four attempts, the valve core may be
removed from the valve stem to allow more air
flow into the tire to assist with bead seal. After
bead seal is achieved, remove the clip-on
chuck and reinstall the valve core. Reattach
the clip-on chuck after core is installed.

12 • Important: Always read and follow the operating instructions.
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 fre-
quently. Stand back during bead seat. Keep hands,
arms, and entire body away from tire during this pro-
cedure (figure 24).
Figure 24 - Stand Back during Bead Seat

Important: Always read and follow the operating instructions. • 13
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 pres-
sure frequently to avoid over inflation.
Excessive pressure can cause tires to
explode, causing serious injury or death to
operator or bystander.
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 25). 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 26).
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.
Note: If you change tires defined as truck tires, they
must be inflated per OSHA instructions.
Figure 25 - Location of Manual Release Valve
Figure 26 - Do Not Use a Hand-held Style Air Chuck
Explosion Hazard
Never inflate tire
above
manufacturer's
recommended
pressure after bead
is seated.
Explosion Hazard
Never exceed 40
PSI while seating
beads.
Remember R.I.M.
(see page iv and back cover)

14 • Important: Always read and follow the operating instructions.
Stages of Inflation on a
Conventional Tire and Rim
Review these descriptions and diagrams carefully. Refer to them as
necessary during bead sealing, bead seating, and inflation to verify
that you are proceeding properly and safely.
Bead Sealing
Bead sealing is the process of capturing air pressure between the
tire and the rim. The tire will usually contain about 1/2 to 2 PSI at ini-
tial bead seal
Bead Seating
Bead seating usually occurs on the long tapered side of the wheel
first and the shorter side last. Bead seating will usually require at least
7 PSI in the tire. 40 PSI is the maximum safe pressure at this stage
regardless of tire operating pressure.
Most European import cars and many aftermarket alloy wheels are
very tight and can be difficult to bead seat. Also note that asymmet-
rical hump and run-flat tires are extremely difficult to bead seat.
Follow tire manufacturer's recommended procedure for bead seating.
Inflation
After the beads are seated, the tire is ready to be inflated. Do not
inflate the tire above the manufacturer's recommended pressure as
stamped on the tire sidewall. The typical inflation pressure for auto-
mobile tires is between 24 and 45 PSI. Light truck inflation pressure
typically covers a wider range.
Air flow through valve requires about
140 PSI air pressure drop to ensure
sufficient flow on difficult tires.
Usually last to “ pop” is the mount side.
Requires visual
conformation of
bead seat.
Stand clear of the tire during bead seat and inflation.
Stand clear of the tire during inflation.
Requires rubber lubri-
cant on both upper
and lower beads.

Important: Always read and follow the operating instructions. • 15
Mismatched Tires and Wheels
Never attempt to mount and inflate mis-matched tires
and wheels.
Mismatched tire and wheel combinations can explode,
causing personal injury or death to operator and/or
bystanders.
Half Size Tires
14.5, 15.5, 16.5, 17.5, etc.
Even Size Wheels
14.0, 15.0, 16.0, 17.0, etc.
15°
5°
Note the gap in sealing area
Bead may seal; but it
will not seat properly
Half Size Wheels
14.5, 15.5, 16.5, 17.5, etc.
Even Size Tires
14.0,15.0,16.0,17.0, etc.
Note 15° bead seat

16 • Important: Always read and follow the operating instructions.
Maintenance
Instructions
Read and follow all the maintenance instructions pro-
vided in this manual to keep the machine in good oper-
ating condition. Refer to the other materials received
with the unit and to the service bulletins from the man-
ufacturer for additional instructions on proper mainte-
nance and service. Regular inspections and proper
maintenance are essential to preventing accidents and
injuries.
Before making any inspection, adjustment,
or repair, disconnect the power source and
block out all moving parts to prevent injury.
Keep the machine and the immediate work
area clean. Do not use compressed air to
remove dirt and debris from the machine.
Foreign material may be propelled into the
air and into operator or bystander causing
personal injury.
Wear protective clothing, equipment and
eye protection when making any adjust-
ments or repairs to the machine.
A. The vertical and horizontal slides and the helper
slides should be cleaned with a vaporizing solvent and
then lubricated with chassis grease once a month.
B. Check the adjustment of the Duckhead once a
month.
C. The transmission in this machine is a sealed unit
packed with grease and should need no normal main-
tenance.
D. The tabletop, clamps, steel Duckhead, and other
working surfaces should be cleaned with a vaporizing
solvent every month.
E. Inspect clamps. If using Max-Grip™clamps then
replace any worn or damaged grips and covers or if
using other clamps then remove metal chips and dirt
from the serrations with a wire brush every month.
F. Check the tire pressure gauge function daily, and
check the accuracy monthly. Use a pressurized tire and
a high quality stick-type pressure gauge. If necessary,
adjust the dial of the machine gauge. If the gauge is
defective, replace it immediately (part number
107985). Contact COATS at [phone]. Check
function of the pressure limiter weekly. Always rein-
stall the lens after adjusting the gauge.
G. Make sure all fasteners are securely tightened.
H. Make certain that all guards and covers are in
place.
I. Check for worn, damaged or missing parts includ-
ing grips and protective covers. Replace them before
allowing the unit to be used.
J. On a daily basis, inspect the unit and check to be
certain that all systems are operating normally.
Detailed inspection and testing procedures are speci-
fied for various components at regular intervals. Set up
a chart and assign responsibility for these items.
Replace any damaged or missing safety
decals.They are available from COATS, (800)
688-6359.
Important: These instructions will help you service
the unit. Instructions are for a person with some
mechanical ability and training. No attempt has been
made to describe all basic steps. For example, how to
loosen or tighten fasteners. Also basic procedures
such as cycling systems and checking operation of the
equipment are not fully described since they are
known to anyone who does mechanical and service
work. Do not attempt to perform work beyond your
ability or at which you have no experience. If you need
assistance, call an authorized service center or contact
COATS directly, [phone].