Snap-On EEWH312A Operation Instructions Manual
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Snap-On EEWH312A Operation Instructions Manual

Snap-On EEWH312A Operation Instructions Manual

Air/electric tire changer
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EEWH312A
Air/Electric Tire Changer
Operation Instructions
FORM ZEEWH312A Rev B

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Summary of Contents for Snap-On EEWH312A

  • Page 1 EEWH312A Air/Electric Tire Changer Operation Instructions  FORM ZEEWH312A Rev B...
  • Page 2 (BLANK PAGE)
  • Page 3 First Edition Form ZEEWH312A COPYRIGHT NOTICE The information contained in this document is property of Snap-on Incorpo- rated. It or any of the information contained within shall not be used, copied, or reproduced without express written consent of Snap-on Incorporated.
  • Page 4 (BLANK PAGE)

  • Page 5: Safety Statements

    It is assumed that, prior to using the EEWH312A Series 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 fl...
  • Page 6 EEWH326A Tire Changer Operation Manual SAFETY INSTRUCTIONS IMPORTANT!! SAVE THESE INSTRUCTIONS Overinfl ated tires or tires mounted on the wrong sized rims can explode produc- ing hazardous fl ying debris.  Read Operator’s Manual before using this Tire Changer.  Never mount tire on rim with different sized diameter. ...
  • Page 7 EEWH312A Tire Changer Operation Manual Risk of crushing. Stand clear of bead breaker arm during operation. Warning !  Read and understand the operation instructions before using this tire changer.  Become familiar with all controls before proceeding with operation.
  • Page 8 EEWH326A Tire Changer Operation Manual Tires and Rims that are not the same diameter are mismatched.  NEVER attempt to mount or infl 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 fl...

  • Page 9: Table Of Contents

    EEWH312A Tire Changer Operation Manual TABLE OF CONTENTS SAFETY STATEMENTS Page 5-8 TABLE OF CONTENTS Page 1.0 INTRODUCTION Page 10 1.1 SPECIFICATIONS and FEATURES Page 10 1.2 NOMENCLATURE Page 10 1.3 DIMENSIONS OF THE MACHINE Page 12 1.4 STANDARD ACCESSORIES Page 12 1.5 OPTIONAL ACCESSORIES...

  • Page 10: Introduction

    With a minimum of maintenance and care your Snap-on EEWH312A Series Tire Changer will provide many years of trouble-free operation. Please read this manual thoroughly before operating the unit.
  • Page 11 EEWH312A Tire Changer Operation Manual TURNTABLE & CABINET FEATURES SAFETY RESTRAINT ARM (Standard Mod- EEWH312A & els IN, INA only) SQUARE TURNTABLE PLATFORM - Provides easy access to TIRE/RIM ASSEMBLY RESTRAINT - Safety Restraint Arm tires lower bead during the tire changing process.

  • Page 12: Dimensions Of The Machine

    EEWH326A Tire Changer Operation Manual MACHINE DIMENSIONS - EEWH312A STANDARD ACCESSORIES 87111 - Mount /Demount Tool (Fig.3) Figure 3 Infl ation Gauge is mounted on the Infl ation Tank Column. (Not shown) Air Filter and Air Lubricator, (Fig.4) Figure 2...

  • Page 13: Optional Accessories

    EEWH312A Tire Changer Operation Manual OPTIONAL ACCESSORIES 87436 - 8” Wheel Adapter- 4 required (Fig.5) 87435 - Motorcycle Adapter- 4 required (Fig.5) Figure 6 66735 - Bead Holding Clamp (Fig.7) Figure 5 Figure 7 - Page 13 -...

  • Page 14: General Precautions

    HAZARD TO THE OPERATOR. WEAR PROPER SAFETY ATTIRE - GLOVES, SAFETY SHOES AND GLASSES. INSTALLATION Your new Snap-on EEWH312A Series Tire Changer requires a simple installation procedure requiring only a few moments. Follow these instructions carefully to insure proper and safe operation.

  • Page 15: Bead Breaker Installation

    EEWH312A Tire Changer Operation Manual 2.2 BEAD BREAKER INSTALLATION WARNING! BEFORE CONNECTING THE The side mounted Bead Breaker is shipped from the factory MACHINE TO THE AIR SUP- dismounted for a more compact shipping package. PLY BE SURE ALL PERSON-...

  • Page 16: Controls

    EEWH326A Tire Changer Operation Manual CONTROLS WARNING! WATCH YOUR FINGERS AND LEGS! 541a 542a Press down the fi rst pedal (3) from the right: the turntable turns clockwise. Placing your foot under the pedal and lift, the turntable turns counterclockwise. Lower the Lock Lever (4 ) to unlock the vertical slide, lift the Lock Lever to lock.

  • Page 17: Mounting And Demounting-Precautions

    EEWH312A Tire Changer Operation Manual 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 CONDI- TION: IF NECESSARY CLEAN IT AFTER REMOVING ALL WHEEL-WEIGHTS INCLUDING ‘TAPE WEIGHTS’...
  • Page 18 EEWH326A Tire Changer Operation Manual D. Liberally lubricate both beads. Place the wheel WITH DROP CENTER UP (Fig.13a) on the turntable, and clamp in position. Hold the tire and wheel down while clamping. 1/16” Fig.14 NOTE: EVERY MACHINE IS EQUIPPED WITH SEVERAL RE- Fig.13 Fig.
  • Page 19 EEWH312A Tire Changer Operation Manual Fig.15 G. Rotate the turntable clockwise (pedal down) and, at the Fig.17 same time, push down on the tire sidewall to move the bead into the drop center of the rim (Fig.16). Fig.16 H. Repeat the process for removing the lower bead.

  • Page 20: Mounting Tubeless Tires

    EEWH326A Tire Changer Operation Manual 4.2 MOUNTING TUBELESS TIRES NOTICE! THESE LUBRICATION OPERATIONS ARE NECESSARY A. Clean entire rim surface (Fig.18). TO MOUNT THE TIRE CORRECTLY AND GET A PROPER CENTERING ON THE RIM. BE SURE YOU ARE USING APPROVED LUBRICANT ONLY. Fig.18 DANGER!! Keep hands Liberally lubricate both beads of the tire with approved tire...

  • Page 21: Inflating Tubeless Tires

    EEWH312A Tire Changer Operation Manual NOTICE! 4.3 INFLATION OF TUBELESS TIRES. SOME TIRES HAVE A COLOR DOT THAT IS TO BE KEPT ON THE OUTSIDE OF THE WHEEL AND IS TO BE Make sure that both beads are properly lubricated.
  • Page 22 EEWH326A Tire Changer Operation Manual C. Connect the infl ation hose to the valve stem. D. Lift the tire with both hands so that the upper bead is sealed to the rim edge (Fig.21). NEVER STAND OVER TIRE WHEN ATTEMPTING TO SEAT BEADS OR DURING INFLATION Fig.22 E.

  • Page 23: Demounting Tube Type Tires

    EEWH312A Tire Changer Operation Manual C. Infl ate the tube slightly: if held with the index fi nger it A. For breaking the bead operate as described for the tube- should bend a little (Fig.24). less tires in section 4.1.A to 4.1.F.

  • Page 24: Inflating Tube Type Tires

    EEWH326A Tire Changer Operation Manual 5.2 INFLATING TUBE-TYPE TIRES. Make sure that both beads are properly lubricated. BEAD SEATING IS THE MOST DANGEROUS PART OF MOUNTING A TIRE. NEVER STAND OVER TIRE WHEN ATTEMPTING TO SEAT BEADS OR DURING INFLATION IT IS POSSIBLE TO MOUNT TIRES THAT ARE 1/2”...

  • Page 25: Maintenance

    EEWH312A Tire Changer Operation Manual 7.0 MAINTENANCE D. Inspect and replace as necessary the plastic mount/ demount head insert. The insert is held in place by a small roll pin. Drive the pin out with a punch, replace after new insert is installed.
  • Page 26 (BLANK PAGE)
  • Page 27 (BLANK PAGE)
  • Page 28 This document contains proprietary information which is protected by copyright and patents. All rights are reserved. No part of this document may be photocopied, reproduced, or translated without prior written Snap-on consent of is a registered trademark of Snap-on Incorporated ZEEWH312A Rev B...05/22/13...copyright 2013 Snap-on Equipment all rights reserved...

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