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Summary of Contents for Snap-On EEWB304B
- Page 1 EEWB304B COMPUTER WHEEL BALANCER FOR: PASSENGER CAR & LIGHT TRUCK WHEELS OPERATION INSTRUCTIONS Form ZEEWB304B ® ® ® ® ®...
- Page 3 It is assumed that, prior to using the Model EEWB304B Wheel Balancer, the operator has a thorough understanding of the wheels and tires being serviced. In addition, it is...
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Page 4: General Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS When using this equipment, basic safety precautions should always be followed, including the following: Read all instructions. Do not operate equipment with a damaged power cord or if the equipment has been damaged - until it has been examined by a qualified authorized service technician. Always unplug equipment from electrical outlet when not in use. -
Page 5: Table Of Contents
Snap-on EEWB304B Operators Manual TABLE OF CONTENTS General Safety Instructions Page 2 Introduction Page 4 Safety Notice Page 4 Balancer Application Page 4 Specifications Page 5 Balancer Features Page 5 Standard Accessories Page 6 Optional Accessories Page 6 Dimensions Of The Machine... -
Page 6: Introduction
Read carefully all warnings and instructions of this manual since they provide important information concerning safety and maintenance. 1.2 BALANCER APPLICATION The Snap-on wheel balancer model EEWB304B is intended to be used as a device to balance car, and light truck wheels within the following range: Maximum wheel diameter : 44”... -
Page 7: Specifications
Snap-on EEWB304B Operators Manual 1.3 EEWB304B SPECIFICATIONS 1.4 FEATURES ACCURACY Computerized digital wheel balancer for car, light truck • Weight placement accuracy to as low as ± .7° wheels. • Weight imbalance accuracy to 2 grams. • Self test check with every power up cycle. -
Page 8: Standard Accessories
1.5 STANDARD ACCESSORIES Centering Cones and Accessories For centering of wheels with center holes EAM0003J08A Cone, 85-132 mm / 3.36”-5.2” EAM0003J07A Cone, 71-91 mm / 2.8”-3.6” EAM0003J06A Cone, 56-84 mm / 2.18”-3.3” EAM0003J05A Cone, 43-64 mm / 1.7” - 2.5” EAM0058D07A Cup - Pressure EAC0058D15A... -
Page 9: Dimensions Of The Machine
Snap-on EEWB304B Operators Manual 1.7 DIMENSIONS OF THE MACHINE Figure 5 - Recommended work area 1.9 INSTALLATION INSTRUCTIONS CAUTION! CAREFULLY REMOVE THE BALANCER FROM THE PALLET. Figure 4 - Footprint dimensions. THE UNIT IS HEAVY AND THE WEIGHT IS NOT EVENLY DISTRIBUTED. -
Page 10: Wheel Guard Installation
B. Remove the hardware that secures the machine to the pallet and slide the balancer onto the floor where it is to be installed. C. Install the accessory pins (Figure 7). Tighten firmly. Figure 8 2.3 ELECTRIC INSTALLATION ANY ELECTRICAL WIRING MUST BE PER- FORMED BY LICENSED PERSONNEL. -
Page 11: Terminology
Snap-on EEWB304B Operators Manual 3.0 TERMINOLOGY Figure 9 Before using the wheel balancer it is suggested that you become familiar with the terminology of the machine’s components. Refer to Figures 9 and 10. Display Features: 1. Inner Plane Imbalance Value Display 2. -
Page 12: Balancer Operation
1 and 2 of this manual. There are many types of wheels and Snap-on supplies adaptors of good quality and durability for the large majority. However if you meet special wheels which may... -
Page 13: Mounting Of Light Truck Wheels
Snap-on EEWB304B Operators Manual 4.3 MODE SELECTION The majority of balancing takes place in the default 2- plane dynamic mode which is displayed as "2 PL" (location 1, see figure 14). Hammer-on clip weights will be placed on both inside and outside of the rim edge. If... -
Page 14: Selecting Operator Preferences
C. ALUMINUM MODES. Balancing using a combina- 4.4 SELECTING OPERATOR PREFERENCES tion of hammer-on and adhesive weights as shown in Figures 17 thru 21. 4.4.1 FINE BALANCING MODE This balancer measures with the maximum precision available all the time, 1g / 0.05 oz, however values be- low 5g / 0.25 oz are shown as zero while in the normal operating mode. -
Page 15: Entering Rim Parameters
Snap-on EEWB304B Operators Manual 4.5 ENTER RIM PARAMETERS 4.5.1 Rim Distance (offset) and Diameter - Grasp the offset gage arm at the end of the shaft and move outward to the edge of the rim, touch the pointer to the rim edge as illustrated in Figure 22 and hold steady for about a second. -
Page 16: Correcting The Imbalance
NOTE: For precision balancing of performance wheel weight of an approximate value corresponding to the value shown on the right display, or replace the wheel wheels, an “ALU-S” Mode is available for precision weight with a lighter one. determination of wheel parameters. This feature If the wheel weight is in sector ‘U’... -
Page 17: Matching Program
The balancer calls for weights in excess of 2 oz. on either plane in the Dynamic mode. The EEWB304B computer wheel balancer features a matching program capable of two levels of resolution: Figure 26 - Step 1, valve top, press “P”... - Page 18 NOTE: The “P” button can be pressed as often as nec- essary, with every press the machine updates the memory of the valve position. 5. The machine displays "SPN 2 ". Lower the wheel guard to spin the wheel, when the shaft reaches the balancing speed, machine displays "ACH 2"...
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Page 19: Optimization Program
Snap-on EEWB304B Operators Manual 3. Display will read "ACH CHC" for one second. Balanc- 7. Lower the wheel guard to spin the shaft. Machine ing results are checked whether or not the matching displays "ACH 3 " while collecting data. Do not disturb balancing has been achieved. -
Page 20: Alu-S Program
7.0 ALU-S MODE This is a mode similar to ALU mode 2 and 3. The differ- ence is that wheel parameters are accurately defined for a more exacting weight placement, therefore improv- ing the likelihood of a single spin balance. Follow the procedures below: 1. -
Page 21: Spoke Mode
Snap-on EEWB304B Operators Manual 8.0 Spoke Balancing Mode A standard dynamic balance places weight at the exact spot of calculated imbalance. Sometimes this weight place- ment may be unsightly on a custom wheel. See Figure 33. The Spoke Mode is designed to “hide” outer plane correc- tive weight by placing the required weight behind selected spokes in order to retain the esthetic appeal of the wheel. -
Page 22: Split Weight Mode
9.0 Split Weights - P92 The “Split Weight” function is used to split one large weight to two smaller weights with 60% of original weight and 33.6° away each direction from the original posi- tion. For instance, if the original unbalance weight is 3 oz, the weight is split into two 1.75 oz weights and placed 56.4°... -
Page 23: User Calibration
Snap-on EEWB304B Operators Manual 10.0 CALIBRATIONVERIFICATION The Snap-on EEWB304B Balancer features a calibra- tion verification program which requires only a few min- utes to complete. Perform this procedure to verify cali- bration when the balancer has been moved, disturbed, or whenever accuracy is questioned. If the calibration process fails a service technian shouild be dispatched to perform a complete calibration. -
Page 24: Calibration Of The Sape
11.0 SAPE CALIBRATION - P80 To calibrate the Rim Offset/Diameter gauge. 1. Make sure the Rim Offset Gauge Arm is at home position and no wheel is mounted to the shaft as shown in Figure 41. 2. Activate the gauge calibration program. Pressing and hold the P key and turn right knob until 80 is displayed on right display window. -
Page 25: Explanation Of "P" Codes
Snap-on EEWB304B Operators Manual 12.0 EXPLANATION OF PROGRAM CODES 13.0 MAINTENANCE Various functions and features can be programmed to BEFORE ANY MAINTENANCE OR REPAIRS enhance operation. These programs are referred to as ARE ATTEMPTED THE MACHINE MUST BE “P Codes”. Activate the “P Code” programs by press- DISCON NECTED FROM THE ELECTRIC SUPPLY. - Page 26 NOTES:...
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- 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 consent of Equipment Services. is a registered trademark of Snap-on Inc. ZEEWB304B... 03/05/07...wdc © copyright Equipment Services 2007 All rights reserved...
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