Snap-On EEWH311C User manual

EEWH311C
AIR ELECTRIC TIRE CHANGER
OPERATOR’S MANUAL

EEWH311C 2
UPDATING GUIDE :
Release A March 2018
- First publication -
Release B October 2019
Chapter 4.1.1 Angular Tool Adjustment, added. PCN: 19G0142

EEWH311C 3
SAFETY INFORMATION
For your safety, read this manual thoroughly
before operating the EEWH311C Air-Electric Tire Changer
The EEWH311C Air-Electric Tire Changer is intended for use by properly trained
automotive technicians. The safety messages presented in this section and throughout
the manual are reminders to the operator to exercise extreme care when changing
tires with these products.
There are many variations in procedures, techniques, tools, and parts for changing
tires, as well as the skill of the individual doing the work. Because of the vast number of
wheel and tire applications and potential uses of the product, the manufacturer cannot
possibly anticipate or provide advice or safety messages to cover every situation. It is
the automotive technician’s responsibility to be knowledgeable of the wheels and tires
being changed. It is essential to use proper service methods and change tires in an
appropriate and acceptable manner that does not endanger your safety, the safety of
others in the work area or the equipment or vehicle being serviced.
It is assumed that, prior to using the EEWH311C Air-Electric Tire Changer, the operator
has a thorough understanding of the wheels and tires being changed. In addition, it is
assumed he has a thorough knowledge of the operation and safety features of the rack,
lift, or !oor jack being utilized, and has the proper hand and power tools necessary to
service the vehicle in a safe manner.
Before using the EEWH311C Air-Electric Tire Changer, always refer to and follow
the safety messages and service procedures provided by the manufacturers of the
equipment being used and the vehicle being serviced.
IMPORTANT !!
SAVE THESE INSTRUCTIONS - DO NOT DISCARD !!

EEWH311C 4
Overin !ated!tires!or!tires!mounted!on!the!wrong!sized!rims!can!explode!producing!
hazardous! !ying!debris.
• Read Operator’s Manual before using this Tire Changer.
• Never mount tire on rim with different sized diameter.
• Never exceed maximum inflation pressure listed on tire sidewall.
• (If equipped) Use safety restraint arm to hold wheel in place while
inflating.
• Always use attached air hose to inflate tires.
Exploding tires can cause death or serious injury.
Risk!of!electrical!shock.!!
• Do not operate equipment with a damaged power cord or if the
equipment has been dropped or damaged, until it has been examined by a
qualified service person.
• If an extension cord is necessary, a cord with a current rating equal to or
greater than that of the equipment should be used. Cords rated for less
current than the equipment can overheat.
• Unplug equipment from electrical outlet when not in use. Never use the
cord to pull the plug from the outlet. Grasp plug and pull to disconnect.
• Do not expose the equipment to rain. Do not use on wet surfaces.
• Plug unit into correct power supply.
• Do not remove or bypass grounding pin.
Contact with high voltages can cause death or serious injury.
Risk!of!electrical!shock.!!High!voltages!are!present!within!the!base!unit.
• There are no user serviceable items within the unit.
• Service on the unit must be performed by qualified personnel.
• Do not open any part of the base cabinet.
• Unplug the unit before servicing.
Contact with high voltages can cause death or serious injury.
SAFETY INSTRUCTIONS
IMPORTANT!! SAVE THESE INSTRUCTIONS!!

EEWH311C 5
Warning !
Warning !
Risk of crushing. Stand clear of bead breaker arm during operation.
• Read and understand the operation instructions before using this tire changer.
• Become familiar with all controls before proceeding with operation.
• Stand away from the bead breaker arm when in operation.
• Apply air to breaker in bursts if necessary to control arm depth.
• Keep all persons clear of tire changer.
Contact with moving parts could cause injury.
Risk of pinching or crushing hands and !ngers when mounting and demounting.
• Read and understand the operation instructions before using this tire changer.
• Keep hands and "ngers clear of rim edge during demounting and
mounting process.
• Keep hands and "ngers clear of mount/demount head during operation.
• Keep hands and other body parts away from moving surfaces.
• Do not use tools other than those supplied with tire changer.
• Do not bypass any safety features.
• Use proper tire lubricant to prevent tire binding.
Contact with moving parts could cause injury.
Risk of eye injury. Flying debris, dirt, and "uids may be discharged during bead
seating and in"ation process.
• Remove any debris from tire tread and wheel surfaces.
• Remove excess tire lubricant or paste before in#ating.
• Wear approved safety glasses during mount and demount procedures.
Debris, dirt, and fluids can cause serious eye injury.
Risk of injury. Tools may break or slip if improperly used or maintained.
• Read and understand the operation instructions before using this tire changer.
• Use only the mount/demount tire tool supplied with the tire changer.
• Frequently inspect, clean, and lubricate (if recommended) where
designated.
• Follow procedures when instructed in this manual.
Tools that break or slip can cause injury.
IMPORTANT !! SAVE THESE INSTRUCTIONS — DO NOT DISCARD !!

EEWH311C 6
Tires and rims that are not the same diameter are mismatched.
• NEVER attempt to mount or in•ate any tire and rim that are mismatched.
• ALWAYS check to see that tire and rim diameters are the same.
A mismatched tire and rim could explode causing death or serious personal injury.
Over-pressurized tires can explode causing !ying debris.
• Read and understand Operator’s Manual before operating.
• Keep bystanders away from work area.
• ALWAYS wear Safety Goggles.
• ALWAYS check to see that tire and rim diameters are the same.
• NEVER attempt to mount or in•ate any tire and rim with different diameters.
• Inspect tires. NEVER in•ate tires that are damaged, rotten or worn.
• NEVER in•ate ‘Split Rim Wheels’ on this tire changer or remove them and use only
an approved safety in•ation cage designed for this purpose.
• Lock turntable clamp on inside of rim before attempting to in•ate tire.
• Use approved tire bead lubricant before removing or installing tire on rim.
• ALWAYS position the optional “Safety Restraint Arm” over the wheel to hold it to
the turntable while in•ating if so equipped. (Optional Accessory)
• If a tire explodes on this tire changer, STOP using it until the “Safety Restraint
Arm” has been replaced, which must be done even if no damage is seen.
• NEVER place head or body over a tire during in•ation process.
• Use short bursts of air to seat tire beads. Check tire air pressure frequently.
NEVER exceed tire manufacturer’s pressure limits.
• NEVER attempt to bypass or alter the built-in air pressure limiter. Only in•ate tire
with air hose supplied with tire changer. NEVER use shop in•ation hose to in•ate
a tire.
• Tire Changer must be anchored to concrete •oor if equipped with a “Safety
Restraint Arm”.
Exploding tires can cause serious injury.

EEWH311C 7
TABLE OF CONTENTS
SAFETY STATEMENTS .....................................................................................Page 3
TABLE OF CONTENTS......................................................................................Page 7
1.0 INTRODUCTION ................................................................................................Page 8
1.1 SPECIFICATIONS ..............................................................................................Page 8
1.2 NOMENCLATURE..............................................................................................Page 8
1.2.1 TURNTABLE & CABINET FEATURES...............................................................Page 9
1.3 ACCESSORIES AND CONSUMABLES.............................................................Page 10
1.4 FLOOR AND SPACE REQUIREMENTS ............................................................Page 12
1.5 GENERAL CAUTIONS .......................................................................................Page 12
2.0 INSTALLATION...................................................................................................Page 12
2.1 ELECTRICAL INSTALLATION............................................................................Page 12
2.2 AIR INSTALLATION............................................................................................Page 13
3.0 CONTROLS........................................................................................................Page 14
3.1 PRESETTING OF CLAMPING JAWS ................................................................Page 16
4.0 MOUNTING AND DEMOUNTING PRECAUTIONS ...........................................Page 17
4.1 DEMOUNTING TUBELESS TIRES....................................................................Page 17
4.1.1 ANGULAR TOOL ADJUSTMENT.......................................................................Page 18
4.2 MOUNTING TUBELESS TIRES.........................................................................Page 20
4.3 IF THE TOP TIRE BEAD IS DIFFICULT TO MOUNT.........................................Page 21
4.4 INFLATION OF TUBELESS TIRES ....................................................................Page 21
5.0 DEMOUNTING TUBE TYPE TIRES...................................................................Page 22
5.1 MOUNTING TUBE TYPE TIRES........................................................................Page 22
5.2 INFLATING TUBE TYPE TIRES.........................................................................Page 23
5.3 OPERATING THE PNEUMATIC BEAD ASSIST ................................................Page 24
5.4 MOUNTING AND DEMOUNTING MOTORCYCLES TIRES..............................Page 25
6.0 MAINTENANCE..................................................................................................Page 25
7.1 INSTRUCTIONS FOR DISPOSAL .....................................................................Page 26
WARRANTY/SERVICE AND REPAIR ................................................................Page 28
--------------------------- EN ---------------------------

EEWH311C 8
1.0 INTRODUCTION
Congratulations on your purchase of the EEWH311C
air-electric tire changer. This tire changer is designed
for ease of operation, safe handling of rims, reliability
and speed. This combination of features means more
pro!t and added versatility for your shop, enabling you
to work with aluminum or magnesium alloy wheels with
reduced risk of damage. With a minimum of maintenance
and care your EEWH311C Air-Electric Tire Changer will
provide many years of trouble-free operation.
Please read this manual thoroughly before operating the
unit. Instructions on use, maintenance and operational
requirements of the machine are covered in this manual.
1.1 SPECIFICATIONS
Operation temperature range: +41/+122 F (+5/50 C)
Air-Electric tilt back tower tire changers for car, light
commercial vehicle and motorcycle tires designed for
one-piece rims. Dimensions based on OEM tires and
wheels only.
Air-Electric
Air pressure required 140-170 psi (8.5 cfm)
Electrical Requirements 115V 60Hz 1ph 20A
Bead breaker force 3300 lbs (kN 15)
Bead Breaker Positions 3
Bead Breaker position #1 3.5” to 13”
Bead Breaker position #2 4” to 14.5”
Bead Breaker position #3 4.5” to 15.5”
Turn Table Operation Single Speed with Reverse
Turn Table Torque (lb - ft) 738
Turn Table Speed (RPM) 7 CW / 7 CCW
Max. tire diameter 40” (mm 1016)
Max. tire width 15” (381mm)
Max. wheel width 15” (381mm)
Rim diameter outside locking 10”-24”(254-609mm)
Rim diameter inside locking 12”-24”(305-609mm)
Motor 1 Hp (kw .75)
Machine weight 750lbs (340kg)
Shipping Weight 838 lbs (380 kg)
Overall dimensions 69” x 41” x 55”
Warranty 2 years
1.2 NOMENCLATURE
Before installing and using the EEWH311C Tire Changer
it is suggested that you become familiar with the
nomenclature of the machine’s components.
1103.tif
Figure 1.2-1
1 Vertical Hex Shaft
2 Horizontal slide
3 Lock button
4 Handle
5 Mount/Demount Tool or Head
6 Tilting Tower or Column
7 Turntable
8 Clamping Jaws or Rim Clamps
8a Inflation Jets
9 Bead breaker arm
10 Bead breaker blade
11 Bead breaker pads
13 Foot pedal controls
14 Bead Seater/Inflator pedal
15 Inflation gauge
PNEUMATIC BEAD ASSIST
16 Bottom Bead Roller
17 Top Bead Roller
18 Bead Assist Arm
19 Rise/fall control lever
20 Bead depressor arm
21 Bead depressor tool

EEWH311C 9
1.2.1 TURNTABLE & CABINET FEATURES
EEWH311C
INTEGRATED BEAD SEATING JETS - Air in!ation jets are integrated into
the turntable clamping jaws to insure full bead seating force directly into the
tire cavity regardless of tire diameter.
3-position Bead Breaker
Position one covers the range of popular tires (3.5” to 13”). Position two
covers many tailer sidewall light truck and SUV tires (4” to 14.5”). Position
three covers the larger wheel diameters with low pro"le performance tires
(4.5” to 15”).
Turntable with Reverse
Forward speed of 7 RPM providing precise control and minimizes tear-
ing of tires. In the event the bead becomes jammed up on lower pro"le
performance tires, the 7 RPM reverse mode quickly relieves the mount/
dismount head to minimize wheel damage from using a prybar.
TWIN CYLINDER CLAMPING POWER - Two 3” clamping cylinders provide
uniform clamping pressure throughout the stroke (regardless of rim sizes)
as well as providing 25% more clamping power than most single clamping
cylinder tire changers. Additionally these two smaller cylinders reduce the
critical turntable to cabinet distance, reducing the stress on the transmission.
WHEEL CLAMPS
UNIQUE FIFTEEN POINT CONTACT CLAMPS
Provide better gripping capability regardless of dirt and moisture.
REDUCED ANGLE CLAMPS
Increases clamping contact area with rim insuring no slippage.
NYLON INSERT SOFT TOUCH CLAMPS
The two front and rear insert in the clamping jaws provides Nonmetal touch
in critical customer visible areas.
VALVE CORE/TIRE TOOL STORAGE CABINET
On tire changer storage area for valves, tools, caulk, etc.
INCOMING AIR PRESSURE GAUGE
Ergonomically located air gauge allows easy operator monitoring of incoming
air pressure.
INTEGRATED PRESSURE LIMITER
Integrated safety pressure limiter stops air !ow once tire pressure has
reached approximately. 55 PSI preventing accidental tire over-in!ation.
MOUNT/DEMOUNT ARM ASSEMBLY
ADJUSTABLE SLIDEWAY - Unique adjustable vertical mount/demount hex
shaft slideway allows for easy operator adjustment to compensate for any
cumulative wear in the slideway causing mount/demount head movement.
NON-SCRATCH NYLON INSERT - Integrated into the mount/demount head
is a replaceable scratch resistant nylon insert protecting against accidental
rim contact.
CONSTRUCTION DESIGNED FOR DURABILITY
RUST PROOF VALVES AND CYLINDERS - Critical bead breaking cylinder
is lined with rustproof poly"ber liner for years of rust free operation. Non-lined
cylinders will pit causing bead breaker power loss.
LIFETIME LUBRICATED POLYMER VALVES - Critical foot valves fabricated
from glass/"ber self-lubricating material providing years of maintenance
free operation.
WATER SEPARATOR AND AUTOMATIC OILER - Lubricates all air used
for machine operation, does not lubricate air used for tire in!ation, as do
some competitive models.
HIGH TORQUE 1HP MOTOR - Industrial strength high torque turntable drive
motor eliminates tire remount stalling on low pro"le high performance tires.
TRANSMISSION - Designed for extremely heavy use, the critical motor to
turntable transmission linkage carries a full two (2) year replacement warranty.
PNEUMATIC BEAD ASSIST ARM
Up/Down Control Switch - Toggle switch allows single "nger operation of
all pneumatic PBA functions, with or without gloves.
Top Bead Roller - Provides easily controlled pneumatic power to drive
upper beads down into the wheel drop center (while tire is turning) for easy
lubrication prior to dismounting. Also provides pneumatic power assistance
for safely remounting second bead on extremely low pro"le and Run Flat
design tires.
Bead Depressor - Provides easily controlled pneumatic power to depress
the tires sidewall during the remount cycle. This will prevent premature bead
seating before the entire bead has been reinstalled on the wheel. Provides
an added level of safety by keeping the technicians hands away from the
bead area during this potential pinch point procedure. Additionally the Bead
Depressor “follows” the tire around while turning to guarantee successful
remount "rst time every time.
Bottom Bead Roller - Provides easily controlled pneumatic power to unseat
stubborn lower beads which may have accidentally reseated after the original
bead breaking procedure. Also allows a technician to raise and hold wider
tires up, to assist in safely and easily getting the second bead up onto the
mount/demount head.
Wheel Centering Depressor - Provides downward pressure on a rim when
working to clamp a low pro"le tire/rim combination. Will assist the technician in
correctly seating the rim clamps between the tire and the rim when clamping
from outside in where it is dif"cult to depress the tire sidewall enough to expose
the rim edge.
SAFETY RESTRAINT ARM (OPTIONAL)
TIRE/RIM ASSEMBLY RESTRAINT - Safety Restraint Arm restrains tire
and rim assembly to the tire machine during the in!ation process reducing
potential for injury caused by the unlikely event of catastrophic tire or rim
failure.
SIMPLE SWING ARM DESIGN - SRA arm easily swings to the left when
not in use, allowing the technician to quickly and safely perform the in!ation
process without disrupting the tire changing procedure.
GRAVITY LOCK - SRA lock mechanism operates without any mechanical
cam system eliminating the possibility of system deterioration or mis-
adjustment from mechanical wear.
POSITIONING SAFETY INTERLOCK SWITCH - Integrated switch insures
that SRA arm is centered on the tire/rim assembly before the in!ation process
can begin.
ANTI-ROTATION LOCK - Prevents SRA from rotating horizontally during
in!ation process.

EEWH311C 10
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1.3 ACCESSORIES AND CONSUMABLES

EEWH311C 11
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EEWH311C 12
1.4 FLOOR AND SPACE REQUIREMENTS
1.5 GENERAL CAUTIONS
A. DURING THE USE AND MAINTENANCE OF THE
MACHINE IT IS MANDATORY TO COMPLY WITH ALL
LAWSAND REGULATIONS FORACCIDENT PREVENTION.
B. THE ELECTRICAL POWER SOURCE MUST HAVEA
GROUND CABLE AND THE GROUND CABLE OF THE
MACHINE MUST BE CONNECTED TO THE GROUND
CABLE OF THE POWER SOURCE.
C. BEFORE ANY MAINTENANCE OR REPAIRS
ARE ACCOMPLISHED THE MACHINE MUST BE
DISCONNECTED FROM THE AIR AND ELECTRICAL
SUPPLY.
D. NEVER WEAR TIES, CHAINS OR OTHER LOOSE
ARTICLES WHEN USING, MAINTAINING OR
REPAIRING THE MACHINE. LONG HAIR IS ALSO
DANGEROUS AND SHOULD BE KEPT UNDERA HAT.
THE USER MUST WEAR PROPER SAFETY ATTIRE -
GLOVES, SAFETY SHOES AND GLASSES.
2.0 INSTALLATION
Your new EEWH311C Air-Electric Tire Changer requires
a simple installation procedure requiring only a few
moments.
Follow these instructions carefully to insure proper and
safe operation.
The Tire Changer is delivered mounted to a wooden skid.
Remove tire changer from its mounts carefully, taking
care to avoid any back strain.
Place Tire Changer where proper operation will be
unobstructed to all sides. Install the machine in a covered
and dry place.
2.0.1 ANCHORING
Once placed in the desired location the tire changer must
be bolted to the !oor.
Secure the machine to the floor through the holes
provided in the cabinet, using 3/8” x 2” anchor bolts
(Recommended).
2.1 ELECTRICAL INSTALLATION
BUILDING ELECTRICAL INSTALLATION MUST BE
MADE BY A LICENSED ELECTRICIAN.
Check that the electrical speci"cations of the power
source are the same as the machine. The machine uses
115V, 60 hz, grounded single phase 20 amp source.
Electric speci"cations are clearly marked on a label at
the side of the machine.
FAILURE TO PROVIDE PROPER ELECTRICAL
SUPPLY AND GROUNDING WILL CREATE A SHOCK
HAZARD TO THE OPERATOR.
540
1104
Figure 1.3-1

EEWH311C 13
2.2 AIR INSTALLATION
THE AIR INSTALLATION MUST BE MADE ONLY BY
QUALIFIED PERSONNEL.
EXCESSIVE AIR PRESSURE CAN SERIOUSLY
INJURE PERSONNEL AND DAMAGE THE MACHINE.
Ensure that the line pressure is within the limits required
by the machine. If the pressure exceeds 170 psi (12 bar)
it is mandatory to install a pressure regulator before the
air inlet of the machine.
If the air pressure is lower than the minimum required of
110 psi (8 bar) the clamping power of the turntable and
the bead breaker power may be insuf!cient for certain
tires and substantially reduces tire changer performance.
It is suggested that the shop air supply be equipped with
a water separator/dryer type modi!cation for maximum
performance.
After ensuring all the above proceed as follows:
A. Connect the machine to the air supply with a rubber
hose (rated for the pressure) with an internal diameter of
no less than 1/2” (12.5 mm).
- The air inlet !tting is ¼” NPT tapered pipe threads.
WARNING! BEFORE CONNECTING THE MACHINE
TO THE AIR SUPPLY BE SURE ALL PERSONNEL
ARE CLEAR OF THE MACHINE AND NO ITEMS ARE
LEFT ON THE TURNTABLE.
B. It is strongly recommended that an air valve shut-off be
installed between the shop air supply and the tire changer
for routine maintenance and in case of an emergency.
C. Should you install any optional accessories, please
refer to the relevant instructions.
D. Ensure the functional ability of the air lubricator by
ensuring that the glass sight bowl is !lled with air tool
lubricant.

EEWH311C 14
3.0 CONTROLS
Figure 3.0-1
Before operating the machine, take the time to familiarize
yourself with the operation and function of all the controls
(Figure 3.0-1).
A Press down and release, WITH LEFT FOOT, the !rst
pedal from the left: the column tilts backwards.
Press again: the column tilts forward.
BPress down and release, WITH LEFT FOOT, the
second pedal from the left: the jaws of the turntable
will retract. Do it again: the jaws will expand. If you
press the pedal prior to the end of the stroke and
release, the jaws may be stopped in any position.
C Press down and hold, WITH RIGHT FOOT, the
second pedal from the right:
the turntable turns clockwise.
All the way down the turntable rotates at the maximum
speed (7 RPM).
Lift the pedal and the turntable turns counter-
clockwise (7 RPM).
D Open the bead breaker arm. Press down and hold,
WITH LEFT FOOT, the !rst pedal from the right:
by doing this you operate the bead breaker blade and
the arm will move towards the machine. Release the
pedal: the bead breaker blade will retract.
WARNING!
ALWAYS KEEP ARMS AND LEGS AWAY FROM THE
BEAD BREAKER STROKE!!
EThe push button on the handle releases and locks
the mount/demount tool in the correct position.
A
B C
D
E

EEWH311C 15
1.
To unlock and let the slide with the tool go up: push the
button !rmly with the fore!nger, in the direction of the
arrow (Fig. 3.0-2).
983a
Figure 3.0-2
2.
To unlock and let the slide with the tool go down: push
the button with the thumb in the direction of the arrow,
until the resistance increases (Fig. 3.0-3).
984a
Figure 3.0-3
3.
To lock: push the button !rmly with the thumb (Fig. 3.0-4).
982a
Figure 3.0-4
F Press bead seater/in"ator pedal on left side of the
machine half way down (#1 Fig. 3.0-5): air will come
from in"ation hose end only.
1005
Figure 3.0-5
G Press bead-seater pedal down swiftly to get air blast
from the in"ator jets. Air simultaneously comes out of
in"ator hose.
WARNING!!
WHEN USING COMPRESSED AIR IT IS MANDATORY
TO WEAR SAFETY GLASSES TO PROTECT EYES.

EEWH311C 16
1
Figure 3.1-1
2
C
B
A
3.1 PRESETTING OF CLAMPING JAWS
MAKE SURE ALL FOUR CLAMPING JAWS ARE
POSITIONED IDENTICALLY (FIG. 3.1-1, ITEMS 1 OR
2). OTHERWISE THE RIM MIGHT NOT BE CLAMPED
PROPERLY, COME OFF THE CHUCK AND HURT THE
OPERATOR!
A Depress !rst pedal from the left smoothly up to the
centre position. If the pedal is released the clamping
jaws stop in the position they have reached at the time.
B Set the clamping diameter according to the dimensions
of the rim.
C. To reposition the jaws free the lock pin by applying
pressure on the lever (C) on the right side of each
jaw. Slide the jaws towards the required position and
release the lever: make sure the jaw is now locked
!rmly. Repeat the procedure on all the turntable jaws.
With the jaws in position 1(1, Fig. 3.1-1), the operative
diameter is exactly as indicated by the scale (A-B)
on the turntable.
With the jaws in position 2(2, Fig. 3.1-1), add 4” to the
value represented by the scales to obtain the effective
setting diameter.
Note: Turntable capacity can be changed before
pedal control.
EACH JAW NEEDS TO BE SET AT THE SAME
POSITION.

EEWH311C 17
Warning !
WATCH YOUR FINGERS
AND LEGS!
4.0 MOUNTING AND DEMOUNTING PRECAUTIONS
IMPORTANT!
BEFORE MOUNTING A TIRE ON A RIM, PAY
ATTENTION TO THE FOLLOWING:
A. THE RIM MUST BE CLEAN AND IN GOOD
CONDITION: IF NECESSARY CLEAN IT AFTER
REMOVINGALL WHEEL-WEIGHTS INCLUDING ‘TAPE
WEIGHTS’ INSIDE THE RIM.
B. THE TIRE MUST BE CLEAN AND DRY, WITHOUT
ANY DAMAGE TO THE BEAD.
C. REPLACE THE RUBBER VALVE STEM WITHA NEW
ONE OR REPLACE THE ‘O’ RING IF THE VALVE STEM
IS MADE OF METAL.
D. IF THE TIRE REQUIRES A TUBE, MAKE SURE THE
TUBE IS DRY AND IN GOOD CONDITION.
E. LUBRICATION IS NECESSARY TO MOUNT THE TIRE
CORRECTLY AND GET A PROPER CENTERING. BE
SURE YOU ARE USING APPROVED LUBRICANT ONLY.
F. MAKE SURE THE TIRE IS THE CORRECT SIZE
FOR THE RIM.
4.1 DEMOUNTING TUBELESS TIRES
A. Remove all wheel-weights from the rim. Remove the
valve stem or valve stem core and de!ate the tire (Fig.
4.1-1).
535a
Fig. 4.1-1
B. Break both beads.
Hold open the Bead Breaker, roll the tire/rim into the
Breaker area (Fig. 4.1-2). Ensure that the tire/rim
assembly is !at against the rubber breaker pads on the
side of the machine. Make certain that the bead breaker
blade is not over the top of any portion of the rim. Now
activate the bead breaker pedal. As soon as the bead
dislodges from the rim, release the breaker foot pedal. It
may be necessary to rotate the tire 90 degrees and repeat
the above procedure to dislodge all beads.
Pay extra attention during this operation as it is easy to
mistakenly keep your foot on the bead breaking pedal
too long. This could potentially result in bead or rim
damage (Fig. 4.1-2)
536
Fig. 4.1-2
NOTICE !
ON VEHICLES WITH TPMS PRESSURE SENSORS
INSTALLED, BREAK THE BEAD AT 90 DEGREES
OFFSET FROM THE VALVE STEM. DAMAGE TO THE
WHEEL AND/OR SENSOR MAY RESULT IF THE BEAD
IS BROKEN AT ANY OTHER POINT ON THE RIM.
C. Set the rim clamps to the proper position: retract
clamps to clamp the wheel from the outside.
When clamping small wheels (14” or smaller) from the
outside, set the clamps at a diameter nearly equal to the
rim diameter before placing the wheel on the clamps.
This will help avoid the possibility of pinching the tire as
the clamps retract.
NOTICE !
TO MINIMIZE THE RISK OF SCRATCHING ALLOY OR
CLEAR COATED RIMS, THESE RIMS ARE CLAMPED
FROM THE OUTSIDE. USING OPTIONAL PLASTIC
RIM PROTECTION WILL MINIMIZE RIM DAMAGE
FROM THE OUTSIDE.

EEWH311C 18
2a
2b 1
D. Liberally lubricate both beads. Place the wheel WITH
DROP CENTER UP (Fig. 4.1-3a) on the turntable, and
clamp in position. It may be necessary to hold the tire and
wheel down while clamping to insure contact between rim
and clamp as shown in 4.1-3a.
Fig. 4.1-3 Fig. 4.1-3a
WARNING: MOVE YOUR HANDS AWAY FROM
THE RIM BEFORE OPERATING THE TOOL DOWN-
STROKE.
E. Gently position the mount/demount head in contact with
the rim edge and lock it into place: the tool automatically
moves away from the rim edge vertically and horizontally,
approximately 1/25” (1 mm): this is necessary to avoid
any rim contact during the changing process. (Fig. 4.1-4).
332a
Fig. 4.1-4
DANGER!!
Keep hands and "ngers clear of mount/
demount head during operation.
4.1.1 ANGULAR TOOL ADJUSTMENT
The tool is adjusted at the factory with an optimal angle
for most wheels used today. However, the angle can be
optimised for wheels with a diameter that differs conside-
rably from the standard.
To adjust the tool angle, proceed as follows:
1. Mount the rim for which the adjustment is required.
2. Loosen the lower screw (1, Fig. 4.1-5).
3. Adjust the tool with the screws shown (2a and 2b,
Fig. 4.1-5). Unscrew the screw (2a or 2b, Fig. 4.1-5)
to rotate the tool, respectively clockwise or counter-
clockwise.
4. Screw in the opposite screw to block the tool in the
desired angular position.
5.
Tighten the lower screw (1, Fig. 4.1-5) with a torque of
35 Nm.
Fig. 4.1-5

EEWH311C 19
NOTE:
YOUR MACHINE IS SHIPPED WITH SEVERAL
REPLACEMENTPLASTICINSERTS(INSIDESTANDARD
EQUIPMENT PACK). THE PLASTIC INSERTS WILL
HELP AVOID DAMAGE FROM ACCIDENTAL CONTACT
BETWEEN THE MOUNT/DEMOUNT HEAD AND THE
RIM. THE PLASTIC INSERTS WILL NEED TO BE
PERIODICALLY REPLACED.
MAINTENANCE NOTE:
IF THE MOUNT/DEMOUNT HEAD NYLON INSERTS
ARE WEARING OUT PREMATURELY, THE CAUSE
IS MAINLY THE INCORRECT POSITIONING OF
MOUNTING HEAD ON THE RIM. THIS STRESSES
INSERTS WHICH KEEP GRANTING THE RIM
PROTECTION BUT REDUCE THEIR LIFE.
NOTE:
ONCE THE MOUNT/DEMOUNT HEAD IS POSITIONED
PROPERLY, IDENTICAL WHEELS MAY BE CHANGED
WITHOUT HAVING TO RESET THE HEAD.
NOTE:
ON VEHICLES WITH TPMS SENSORS, LOCATE THE
SENSOR AWAY FROM THE BEAD OF THE DROP
CENTER. ALSO MAKE SURE THE TIRE LEVER DOES
NOT CONTACT THE SENSOR DURING THE MOUNT
OR DEMOUNT PROCESS. DAMAGE TO THE WHEEL
AND/OR SENSOR WILL RESULT IF THE BEAD IS
BROKEN AT ANY OTHER POINT ON THE RIM.
F.
Insert the mount/demount tool between the bead and the
mount/demount head. Pry the bead onto the mount/demount
head using the mount/demount head as the leverage point.
To make this operation easier, insure that the bead of the
tire, 180º across from the mount/demount head, is in the drop
center of the wheel. Push the tire into the drop center with
your hand or bead depressor tool if necessary.
It is suggested that the mount/demount tool be removed
after lifting the bead onto the mount/demount head (Fig.
4.1-6), however, you may remove the tool after the bead
has been removed.
Fig. 4.1-6
G. Rotate the turntable clockwise and, at the same time,
push down on the tire sidewall to move the bead into the
drop center of the rim (Fig. 4.1-7).
334
Fig. 4.1-7
H. Repeat the process for removing the lower bead.
This time, lift the bead opposite to the mount/demount
head to keep it in the drop center (Fig. 4.1-8).
If you meet dif!culty during this operation, use the bead
presser assist device PBA (see chapter 5.3).
Tilt the column backwards and remove the tire.
335
Fig. 4.1-8

EEWH311C 20
4.2 MOUNTING TUBELESS TIRES
A. Clean entire rim surface (Fig. 4.2-1).
336
Fig. 4.2-1
Liberally lubricate both beads of the tire with approved
tire lubricant (Fig. 4.2-2).
337
Fig. 4.2-2
NOTICE!
THESE L U B R I C AT I O N OPER ATI O NS ARE
NECESSARY TO MOUNT THE TIRE CORRECTLY AND
GET A PROPER CENTERING ON THE RIM. BE SURE
YOU ARE USING APPROVED LUBRICANT ONLY.
NOTICE!
SOME TIRES HAVE A COLOR DOT THAT IS TO BE
KEPT ON THE OUTSIDE OF THE WHEEL AND IS TO
BE ALIGNED WITH THE VALVE STEM. IF THIS IS THE
CASE BE SURE TO ATTAIN PROPER ALIGNMENT
PRIOR TO TIRE INFLATION.
NOTICE !
ON VEHICLES WITH TPMS SENSORS, LOCATE THE SEN-
SOR (USUALLY WITH STEM) 90 DEGREES FROM THE
MOUNT/DISMOUNT HEAD. DAMAGE TO THE WHEEL AND/
OR SENSOR WILL RESULT IF THE BEAD CONTACTS THE
TPMS SENSOR DURING THE MOUNT PROCEDURE.
B. Lock the rim to the turntable and rotate it so that the
valve is at the 2 o’clock position. Place the tire to be
mounted on the rim. Tilt the column forward in so that the
mount/demount head is in the working position. (Fig. 4.2-
3) Position the lower bead on top of the mount/demount
head and UNDER the mounting !nger of the mount/
demount head (Fig. 4.2-3). Turn the wheel clockwise
(right pedal down) while simultaneously pushing the tire
down into the drop center, opposite to the mount/demount
head. For this operation the 14 RPM Pedal Position can
be used.
Fig. 4.2-3
C. Mount the upper bead following the same directions in
section B. With low pro!le tires the Bead Holding Clamp
(optional part # EAA0247G70A) or the PBA device (See
chapter 5.3), can help to prevent the top bead from
prematurely seating during the mounting cycle. For this
operation the 7 RPM Pedal Position can be used.
NOTE: Bead Holding Clamp must be removed prior to
coming full circle and impacting the mount/demount head.
Fig. 4.2-4