Snap-On EEWH316A User manual

Instruction opérationnel
Air/Electrique Demont Pneus
EEWH316A
Air/Electric Tire Changer
Operation Instructions
P/N: ZEEWH316A
FR
GB
®

ENG -NOTES REGARDING DOCUMENTATION
FRA -NOTES SUR LA DOCUMENTATION
DEU -ANMERKUNGEN ZUR DOKUMENTATION
NOTE SULLA DOCUMENTAZIONE - ITA
NOTAS SOBRE LA DOCUMENTACIÓN - SPA
NOTAS SOBRE A DOCUMENTAÇÃO - POR
ABB. DESCRIPTION CODE LANGUAGE
SIGLE DESCRIPTION CODE LANGUE
KENN. BESCHREIBUNG CODE SPRACHE
Operator’s Manual
OM Manuel de l’Opérateur ZEEWH316AENG-FRA
Betriebsanleitung
Spare Parts Booklet ENG-FRA-DEU
SP Liste des pièces détachées TEEWH316A3
Ersatzteilliste ITA-SPA-POR
SIGLA DESCRIZIONE CODICE LINGUA
SIGLA DESCRIPCIÓN CÓDIGO IDIOMA
SIGLA DESCRIÇÃO CÓDIGO IDIOMA
Manuale Operatore
OM Manual de Operador ZEEWH316A ENG-FRA
Manual do Operador
Libretto Ricambi ENG-FRA-DEU
SP tabla de repuestos TEEWH316A3
Lista de peças ITA-SPA-POR
Product aid publication:
TIRECHANGER
publication de support au produit:
DEMONTEPNEUS
Zum Produkt gehörendes Dokument:
REIFENMONTIERGERÄT
original language edition in: ITALIAN
langue d’origine de la publication: ITALIEN
Originalausgabe in: ITALIENISCH
Pubblicazione di supporto al prodotto:
SMONTAGOMME
publicación de soporte al producto:
DESMONTARUEDAS
Documentação de apoio ao produto:
MÁQUINADEDESMONTARPNEUS
edizione di lingua originale in: ITALIANO
edición original en idioma: ITALIANO
edição original em: ITALIANO
DOCUMENTATION SUPPLIED
DOCUMENTATION FOURNIE
GELIEFERTE DOKUMENTATION
DOCUMENTAZIONE FORNITA
DOCUMENTACIÓN SUMINISTRADA
DOCUMENTAÇÃO FORNECIDA
EC DECLARATION
EC DECLARATION CE
CE KONFORMITÄTSERKLÄRUNG
Wiring Diagram
WD Schéma électrique
Schaltplan
Pneumatic Diagram
PD Schéma pneumatique
Pneumatikschema
DICHIARAZIONE CE
EC DECLARACIÓN CE
DECLARAÇÃO CE
Schema Elettrico
WD Esquema Eléctrico
Esquema Eléctrico
Schema Pneumatico
PD Esquema Neumático
Esquema Pneumático
Contenuto in SP
Integradas en SP
Conteúdos em SP
Contained in SP
Contenu dans SP
Teil der SP

®
®
EEWH316A
Air/Electric Tire Changer
Operation Instructions
COPYRIGHT NOTICE
The information contained in this document is property of Snap-on Incor-
porated. It, or any of the information contained within, shall not be used,
copied, or reproduced without express written consent of Snap-on
TRADEMARK NOTICE
and Snap-on Incorporated are registered trademarks
Print History
FirstEdition P/N: ZEEWH316A 10/2004
SecondEdition P/N: ZEEWH316A 10/2007
GB
Second Edition P/N: ZEEWH316A 12/2009

UPDUPD
UPDUPD
UPDAA
AA
ATING GUIDETING GUIDE
TING GUIDETING GUIDE
TING GUIDE ::
::
:
MODIFIED / CHANGED PARTS Regarding Second Edition of Oct. 2007
Variations from First Edition:
- CODE FIG. 1.5-2 AT PAGE 13 HAS BEEN MODIFIED PCN:06G0081
Notes regarding documentation (ADDED)
Release B1 - Dcember 2009

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EEWH316A Tire Changer Operation Manual
Operation Manual Page 5
SAFETYINFORMATION
For your safety, read this manual thoroughly
before operating the EEWH316A Tire Changers
The EEWH316A Tire Changers 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 EEWH316A Tire Changers, 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
floor jack being utilized, and has the proper hand and power tools necessary to service
the vehicle in a safe manner.
Before using the EEWH316A Tire Changers, 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 !!

®EEWH316A Tire Changer Operation Manual
Page 6 Operation Manual
Overinflated tires or tires mounted on the wrong sized rims can explode
producing hazardous flying 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.
••
••
• Always 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!!

®
EEWH316A Tire Changer Operation Manual
Operation Manual Page 7
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 fingers when mounting and demounting.
••
••
• Read and understand the operation instructions before using this
tire changer.
••
••
• Keep hands and fingers clear of rim edge during demounting and
mounting process.
••
••
• Keep hands and fingers clear of mount/demount head during opera-
tion.
••
••
• 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 fluids may be discharged during bead
seating and inflation process.
••
••
• Remove any debris from tire tread and wheel surfaces.
••
••
• Remove excess tire lubricant before inflating.
••
••
• 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 !!
Warning !
Warning !

®EEWH316A Tire Changer Operation Manual
Page 8 Operation Manual
Tires and rims that are not the same diameter are mismatched.
••
••
•NEVER attempt to mount or inflate 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 flying 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 inflate any tire and rim with different diameters.
••
••
•Inspect tires. NEVER inflate tires that are damaged, rotten or worn.
••
••
•NEVER inflate ‘Split Rim Wheels’on this tire changer or remove them and use only
an approved safety inflation cage designed for this purpose.
••
••
•Lock turntable clamp on inside of rim before attempting to inflate tire.
••
••
•Use approved tire bead lubricant before removing or installing tire on rim.
••
••
•ALWAYS position the “Safety Restraint Arm” over the wheel to hold it to the
turntable while inflating if so equipped.
••
••
•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 inflation 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 inflate tire
with air hose supplied with tire changer. NEVER use shop inflation hose to inflate a
tire.
••
••
•Tire Changer must be anchored to concrete floor if equipped with a “Safety
RestraintArm”.
Exploding tires can cause serious injury.

®
EEWH316A Tire Changer Operation Manual
Operation Manual Page 9
TABLE OF CONTENTS
SAFETY STATEMENTS ..................................................................................................................... Page 5-8
TABLE OF CONTENTS ..................................................................................................................... Page 9
1.0 INTRODUCTION ...................................................................................................................... Page 10
1.1 SPECIFICATIONS .................................................................................................................... Page 10
1.2 NOMENCLATURE .................................................................................................................... Page 10
1.2.1 FEATURES .............................................................................................................................. Page 11
1.3 MACHINE DIMENSIONS .......................................................................................................... Page 12
1.4 STANDARD ACCESSORIES .................................................................................................... Page 12
1.5 OPTIONALACCESSORIES ..................................................................................................... Page 13
1.6 GENERAL CAUTIONS ............................................................................................................. Page 13
2.0 INSTALLATION ......................................................................................................................... Page 14
2.1 ELECTRIC INSTALLATION (air-electric models) ..................................................................... Page 14
2.2 BEAD BREAKER INSTALLATION ............................................................................................ Page 14
2.3 AIR INSTALLATION .................................................................................................................. Page 14
3.0 CONTROLS .............................................................................................................................. Page 15
4.0 MOUNTING AND DEMOUNTING PRECAUTIONS .................................................................. Page 16
4.1 DEMOUNTING TUBELESS TIRES .......................................................................................... Page 16
4.2 MOUNTING TUBELESS TIRES ............................................................................................... Page 18
4.3 INFLATION OF TUBELESS TIRES .......................................................................................... Page 20
5.0 DEMOUNTING TUBE TYPE TIRES ......................................................................................... Page 21
5.1 MOUNTING TUBE TYPE TIRES .............................................................................................. Page 21
5.2 INFLATING TUBE TYPE TIRES ............................................................................................... Page 22
5.3 MOUNTING AND DEMOUNTING MOTORCYCLE TIRES ....................................................... Page 22
6.0 MAINTENANCE........................................................................................................................ Page 23
--------------------------- FR ----------------------------
À partir de la page 25
--------------------------- GB ---------------------------

®EEWH316A Tire Changer Operation Manual
Page 10 Operation Manual
1.0 INTRODUCTION
Congratulations on your purchase of the Snap-on
EEWH316A 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 profit 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 Snap-on EEWH316A
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 tire changers for car, light commercial
vehicle and motorcycle tires designed for one-piece
rims.
EEWH 316A
• Outside clamping rim diameter capacity : 10" to 20"
• Inside clamping rim diameter capacity : 12" to 22"
• Rim Width Maximum : 13"
• Tire Diameter Maximum: 40"
• Bead Breaking Force : 3300 lbs. at 150 psi air supply
• Electric Requirements: 110V, 60Hz, 20 amp
• Shipping Weight : 530 pounds
1.2 NOMENCLATURE
Before installing and using the Snap-on EEWH316A
Tire Changer it is suggested that you become familiar
with the nomenclature of the machine’s components.
886
Figure 1.2-1
1 Vertical Hex Shaft
2 SwingArm
3 Rim DiameterAdjustment
4 Mount/Demount Head Lock lever
5 Mount/Demount Head
6 Tower or Column
7 Turntable
8 Clamping Jaws
8a Inflation Jets
9 Rim Clamps
10 Bead breaker arm
11 Bead breaker blade
12 Bead breaker pads
13 Foot pedal controls
14 Bead seater/inflator pedal
15 Inflation gauge
SAFETY RESTRAINTARM –SRA- (OPTIONAL)
16 Safety Restraint Arm (SRA) Knob
17 SRA Swing arm
18 Vertical SRA Rod
19 Anti-Rotation Lock

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EEWH316A Tire Changer Operation Manual
Operation Manual Page 11
1.2.1 TURNTABLE & CABINET FEATURES
EEWH316A
INTEGRATED BEAD SEATING JETS - Air inflation jets are
integrated into the turntable clamping jaws to insure full bead
seating force directly into the tire cavity regardless of tire
diameter.
ADJUSTABLE BEAD BREAKER OPENING - Simple two
position bead breaker pin adjustment allows for readjusting
breaker to fit larger OD tires.
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 SIX POINT CONTACT CLAMPS
Provide better gripping capability regardless of dirt and
moisture.
REDUCEDANGLE CLAMPS
Increases clamping contact area with rim insuring no slippage.
NYLON INSERT SOFT TOUCH CLAMPS
Single sided nylon 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 flow once tire
pressure has reached approximately. 55 PSI preventing
accidental tire over-inflation.
MOUNT/DEMOUNT ARM ASSEMBLY
SURGE TANK IN THE TOWER - Space-saving design
integrates the air storage surge tank in the tower allowing for
flush to wall tire changer installation.
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 resistent nylon insert
protecting against accidental rim contact.
SAFETY RESTRAINTARM (OPTIONAL)
TIRE/RIM ASSEMBLYRESTRAINT - Safety Restraint Arm
restrains tire and rim assembly to the tire machine during the
inflation 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 inflation 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 inflation process can begin.
ANTI-ROTATION LOCK - Prevents SRA from rotating
horizontally during inflation process.
CONSTRUCTION DESIGNED FOR DURABILITY
RUST PROOF VALVES AND CYLINDERS - Critical bead
breaking cylinder is lined with rustproof polyfiber liner for years
of rust free operation. Non-lined cylinders will pit causing
bead breaker power loss.
LIFETIME LUBRICATED POLYMER VALVES - Critical
footvalves fabricated from glass/fiber self-lubricating material
providing years of maintenance free operation.
WATER SEPARATORANDAUTOMATIC OILER - Lubricates
all air used for machine operation, does not lubricate air used
for tire inflation, as do some competitive models.
HIGH TORQUE 1HP MOTOR - (air-electric models)
Industrial strength high torque turntable drive motor eliminates
tire remount stalling on low profile high performance tires (UL/
CSA approved ).
3 YEAR TRANSMISSION WARRANTY - Designed for
extremely heavy use, the critical motor to turntable
transmission linkage carries a full three (3) year replacement
warranty.

®EEWH316A Tire Changer Operation Manual
Page 12 Operation Manual
1.3 MACHINE DIMENSIONS
1117
EEWH316A
Figure 1.3-1
1.4 STANDARDACCESSORIES
#EAA0247G11A - Bead Depressor Clamp (Fig. 1.4-1)
881
Figure 1.4-1
#EAA0247G02A- Mount /Demount Tool (Fig. 1.4-2)
294
Figure 1.4-2
Inflation Gauge is mounted into the storage cabinet.
(15, Fig. 1.2-1)
#EAA0304G79A-Air Filter/Lubricator
On Model EEWH316A
(Fig. 1.4-3)
908
Figure 1.4-3
#EAA0247G05A - Lubrication Bucket with
LubricationApplicator
(Fig. 1.4-4)
736a
Figure 1.4-4
Replacement Mount/Demount Head Inserts (4)
(Fig. Not shown)

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EEWH316A Tire Changer Operation Manual
Operation Manual Page 13
1.5 OPTIONALACCESSORIES
#EAA0247G07A- MotorcycleAdapter- 4 required
(Fig. 1.5-1)
353
Figure 1.5-1
#EAA0247G84A - 8" Wheel Adapter
(Fig. 1.5-2)
352
Figure 1.5-2
1.6 GENERAL CAUTIONS
A. DURING THE USEAND MAINTENANCE OF THE
MACHINE IT IS MANDATORY TO COMPLY WITH
ALL LAWS AND REGULATIONS FOR ACCIDENT
PREVENTION.
B. THE ELECTRICAL POWER SOURCE MUST
HAVE A GROUND CABLE AND THE GROUND
CABLE OF THE MACHINE MUST BE CONNECTED
TO THE GROUND CABLE OF THE POWER
SOURCE.
C.BEFOREANYMAINTENANCE ORREPAIRSARE
ACCOMPLISHED THE MACHINE MUST BE
DISCONNECTED FROM THE AIR AND
ELECTRICALSUPPLY.
D.NEVER WEARTIES, CHAINS OROTHER LOOSE
ARTICLES WHEN USING, MAINTAINING OR
REPAIRING THE MACHINE. LONG HAIR IS ALSO
DANGEROUS AND SHOULD BE KEPT UNDER A
HAT. THE USER MUST WEAR PROPER SAFETY
ATTIRE -GLOVES,SAFETYSHOESAND GLASSES.

®EEWH316A Tire Changer Operation Manual
Page 14 Operation Manual
2.0 INSTALLATION
Your new Snap-on EEWH316A 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 Changer where proper operation will be
unobstructed to all sides. Install the machine in a covered
and dry place.
Once placed in the desired location the tire changer must
be bolted to the floor using only the rear two mounting
holes. Mounting anchors are provided with machines.
Tire Changer must be anchored to concrete floor.
2.1 ELECTRICAL INSTALLATION
BUILDING ELECTRICAL INSTALLATION MUST BE
MADE BYALICENSED ELECTRICIAN.
Check that the electrical specifications of the power
source are the same as the machine. The machine uses
110v, 60 hz, grounded single phase 20 amp source.
Electric specifications are clearly marked on a label at
the rear of the machine.
FAILURE TO PROVIDE PROPER ELECTRICAL
SUPPLYANDGROUNDING WILLCREATEASHOCK
HAZARD TO THE OPERATOR.
540
2.2 BEAD BREAKER INSTALLATION
The side mounted Bead Breaker is shipped from the
factory dismounted for a more compact shipping
package.
A. Cut the plastic tie strap, which secures the Breaker
Arm to the cabinet pivot.
B. Remove the “C” clip from the top of the pivot pin,
slip the pin out of the hole.
C. Place the Breaker Arm into position and insert the
pivot pin through the top and bottom holes.
D. Replace the “C” clip retainer onto the pivot pin.
E. Locate the spring located at the rear of the pivot
mount. Place the free end of the spring onto the “ear”
located on the Breaker Arm just forward of the pivot.
HINT: You may tie a small rope or cord onto the free
end of the spring then run the cord through the hole.
Pull the spring end toward the ear and loop free end
over the ear tab.
2.3 AIR INSTALLATION
THEAIR 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 insufficient 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 modification for
maximum performance.

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EEWH316A Tire Changer Operation Manual
Operation Manual Page 15
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" (12.5mm).
WARNING! BEFORE CONNECTING THE
MACHINE TO THE AIR SUPPLY BE SUREALL
PERSONNELARE 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 filled with air
lubricant.
3.0 CONTROLS
889
Figure 3.0-1
Before operating the machine, take the time to
familiarize yourself with the operation and function of
all the controls.
APress down and release the first 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.
BOpen the bead breaker arm. Press down and
hold the middle pedal: 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 KEEPARMSAND LEGSAWAYFROMTHE
BEAD BREAKER STROKE!!
441 442

®EEWH316A Tire Changer Operation Manual
Page 16 Operation Manual
CPress down the right pedal: the turntable turns
clockwise. Placing your foot under the pedal and
lift, the turntable turns counterclockwise.
DLower the Lock Lever (3 ) to unlock the vertical
slide; lift the Lock Lever to lock.
ETurn Swing Arm Adjustment Knob (4) for
positioning mount/demount head slightly away
from rim diameter.
FLift upward on the restraint positioning knob (2)
to position over tire/wheel assembly for inflation,
at the same time push down on the Anti-rotation
Lock Arm to release lock. (1) You may now swing
the safety restraint arm (optional) to position on
the center of the wheel. Lower the restraint until
the rubber pad on the restraint disc is resting on
the rim center. The SRA is a gravity lock which
will automatically lock if any force other than the
restraint position knob is lifted. You are now ready
for the inflation process.
NOTE: the turntable inflation will not function
until the safety arm (if present) is centered over
the turntable.
GPress bead-seater pedal on left side of the
machine (5) halfway down: This will allow activate
the tire inflation line.
HPress bead-seater pedal (5) swiftly all the way
down to get air blast from the inflator jets in the
clamping jaws. Air simultaneously comes out of
inflator hose.
WARNING!!
WHEN OPERATING THE BEAD SEATER IT IS
MANDATORY TO WEAR SAFETY GLASSES TO
PROTECT EYES.
4.0MOUNTINGANDDEMOUNTING 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
REMOVING ALL WHEEL-WEIGHTS INCLUDING
‘TAPE WEIGHTS’INSIDE THE RIM.
B. THE TIRE MUST BE CLEANAND DRY, WITHOUT
ANY DAMAGE TO THE BEAD.
C. REPLACE THE RUBBER VALVE STEM WITH A
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 deflate 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 flat 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.

®
EEWH316A Tire Changer Operation Manual
Operation Manual Page 17
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 RUN FLAT TIRES WITH THE OPTIONAL LOW
PRESSURE SENSOR INSTALLED, BREAK THE
BEADAT 90 DEGREES OFFSET FROM THE VALVE
STEM.DAMAGE TO THE WHEELAND/ORSENSOR
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 and expand
clamps to clamp from the inside.
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 SHOULD
BE CLAMPED FROM THE OUTSIDE.
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.
331
Fig. 4.1-3 Fig. 4.1-3a
E. Gently position the mount/demount head in contact
with rim edge, now manually push the lock lever up
and lock it into place. The mount/demount head
automatically moves vertically up and away from the
rim edge. Turn the swing arm adjustment knob
clockwise until the mount/demount head moves
horizontally away from the rim flange by approximately
1/16" (2mm): this is necessary to avoid any rim contact
during the changing process. (Fig. 4.1-4).
332a
Fig. 4.1-4
NOTE:
YOUR MACHINE IS SHIPPED WITH SEVERAL
REPLACEMENT PLASTIC INSERTS (INSIDE
STANDARD 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.

®EEWH316A Tire Changer Operation Manual
Page 18 Operation Manual
MAINTENANCENOTE:
IF THE MOUNT/DEMOUNT HEAD NYLON INSERTS
ARE WEARING OUT PREMATURELY, THE CAUSE
IS THE OPERATOR’S FAILURE TO CORRECTLY
SET THE RIM DIAMETER ADJUSTMENT KNOB,
CAUSING THE INSERT TO INCORRECTLY
CONTACT THE RIM.
NOTE:
ONCE THE MOUNT/DEMOUNT HEAD IS
POSITIONED PROPERLY, IDENTICAL WHEELS
MAY BE CHANGED WITHOUT HAVING TO RESET
THE HEAD.
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. 4.1-5), however, you may remove the tool
after the bead has been removed.
333
Fig. 4.1-5
G. Rotate the turntable clockwise (pedal down) and, at
the same time, push down on the tire sidewall to move
the bead into the drop center of the rim (Fig. 4.1-6).
334
Fig. 4.1-6
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. 4.1-7).
Pivot the swing arm to the right and remove the tire.
335
Fig. 4.1-7
4.2 MOUNTING TUBELESS TIRES
A. Clean entire rim surface (Fig. 4.2-1).
336
Fig. 4.2-1

®
EEWH316A Tire Changer Operation Manual
Operation Manual Page 19
Liberally lubricate both beads of the tire with approved
tire lubricant (Fig. 4.2-2).
337
Fig. 4.2-2
NOTICE!
THESE LUBRICATION OPERATIONS ARE
NECESSARY TO MOUNT THE TIRE CORRECTLY
AND GET A PROPER CENTERING ON THE RIM.
BE SURE YOU ARE USING APPROVED
LUBRICANT ONLY.
441
DANGER!!
Keep hands and fingers clear of mount/demount
head during operation.
NOTICE!
SOME TIRES HAVEACOLOR 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.
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. Swing the mount/demount arm 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
finger 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.
338
Fig. 4.2-3
C. Mount the upper bead following the directions in
section B. With low profile tires the bead holding clamp
(option #EAA0247G11A Fig. 4.2-4) can help to prevent
the top bead from prematurely seating during the
mounting cycle.
NOTE: Bead Holding Clamp must be removed prior
to coming full circle and impacting the mount/demount
head.
896
Fig. 4.2-4

®EEWH316A Tire Changer Operation Manual
Page 20 Operation Manual
4.3 INFLATION OF TUBELESS TIRES.
Make sure that both beads are properly lubricated.
BEAD SEATING IS THE MOST DANGEROUS PART
OF MOUNTING A TIRE.
NEVERSTANDOVER TIRE WHENATTEMPTING TO
SEAT BEADS OR DURING INFLATION
IT IS POSSIBLE TO INCORRECTLY MOUNT TIRES
THATARE 1/2" SMALLER IN DIAMETER THAN THE
RIMTHAT THEYARE MOUNTEDON. WHILE THESE
BEADSWILLSEAL,ITISIMPOSSIBLETOGETTHEM
TO SEAT IN THEIR PROPER POSITION.
EXPLOSIONOFATIREMAYCAUSESEVEREINJURY
SAFETY RESTRAINTARM (IF PRESENT) MUST BE
IN PLACE PRIOR TOATTEMPTING BEAD SEATING
OR INFLATION.
NEVER EXCEED THE MAXIMUM PRESSURE
ALLOWED BY THE TIRE MANUFACTURER.
IF YOU CLAMPED THE RIM FROM THE OUTSIDE
IT MUST BE UNCLAMPED WHEN INFLATING BUT
ONLY AFTER THE SRA (OPTIONAL DEVICE) IS IN
PLACE.
THE OPERATOR MUST STAND CLEAR FROM THE
WHEEL WHEN INFLATING, AND PRESSURE MUST
BE MONITORED FREQUENTLY TO AVOID OVER
INFLATION.
BEFORE INFLATING A TIRE, CHECK THE
CONDITION OF THE TIRE AND THE RIM.
Inflate tire according to manufacturer’s
recommendations.
Due to unusual configurations or the stacking of tires
the inflation process may be difficult. To assist with
this problem the Snap-on EEWH316A Tire Changers
are equipped with bead seater jets integrated into the
table top.
To utilize the bead seater proceed as follows:
A. Position the safety restraint arm (optional) over
center of wheel assembly. The safety arm is lifted
upward by grasping the safety restraint position knob
and lifting upward while simultaneously depressing the
anti-rotation lock arm. Swing SRA arm assembly so
the rubber retainer is centered over the rim. Note that
air pressure to the inflation hose will not flow until the
arm (if present) is centered over the rim.
B. Connect the inflation hose to the valve stem.
C. Lift the tire with both hands so that the upper bead
is seated to the rim edge (Fig. 4.3-1).
NEVER STAND OVER TIRE WHEN ATTEMPTING
TO SEAT BEADS OR DURING INFLATION
340a
Fig. 4.3-1
D. Press the inflation pedal down swiftly to the end of
its travel to activate the bead seater jets. (Fig. 4.3-1
item 1).
The top bead is already sealed by the lifting motion.
Therefore, the air from the bead seater jets will enter
the tire impacting on the top sidewall and rebound
into the bottom sidewall driving it into place and seating
the bead, creating an air seal.
WHEN OPERATING THE BEAD SEATER, ALWAYS
WEAR SAFETY GLASSES TO AVOID INJURY TO
EYES.
E. Install valve core, if removed. Complete inflation to
manufacturer’s suggested pressure. Never exceed
pressure listed on tire sidewall.