® 1250 2D/3D/3DV Wheel Balancers See ¨Balancing Your First Tire on page 1. Installation Operating Safety Maintenance Instructions Instructions Instructions 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. 1601 J. P. Hennessy Drive, LaVergne, TN USA 37086-3565 615/641-7533 800/688-6359 www.ammcoats.com HENNESSY INDUSTRIES INC.
IMPORTANT SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS 1. Eye and face protection recommendations: “ Protective eye and face equipment is required to be used where there is a reasonable probability of injury that can be prevented by the use of such equipment.” O.S.H.A. 1910.133(a) Protective goggles, safety glasses, or a face shield must be provided by the owner and worn by the operator of the equipment. Care should be taken to see that all eye and face safety precautions are followed by the operator.
Safety Owner’ s Responsibility To maintain machine and user safety, the responsibility of the owner is to read and follow these instructions: • Follow all installation instructions. • Make sure installation conforms to all applicable 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.
Safety Notices and Decals WARNING The motor unit of this machine contains a Class IIIa laser with a maximum output less than 5mW at a wave length of 630-680 nm. Avoid Exposure - Laser radiation is emitted from its aperture. Failure to follow danger, warning, and caution instructions may lead to serious personal 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.
Standard Safety Devices • STOP key for stopping the wheel under emergency conditions. • A hood guard of high impact plastic that is designed to prevent the counterweights from flying out in any direction except towards the floor. • A hood switch interlock system that prevents the machine from starting if the guard is not lowered and stops the wheel whenever the guard is raised. Important: Always read and follow the information box instructions.
Table of Contents Important Safety Instructions . . . . . . . . . . . . .ii Installation Instructions . . . . . . . . . . . . . . . . .20 ¨Balancing Your First Tire . . . . . . . . . . . . . . . .1 Principle Operating Parts . . . . . . . . . . . . . .3 - 6 Specifications . . . . . . . . . . . . . . . . . . . . . . . . .21 Owner’ s Responsibility . . . . . . . . . . . . . . . . . . . . .iii Operator Protective Equipment . . . . . . . . . . . . . . .iii Definitions of Hazard Levels . . . . . . . . . . . .
¨Balancing Your First Tire 1. Turn the machine OFF then ON (resets machine). 8. Inboard center bar blinks. 2. Mount a tire/wheel on the balancer that will use standard clip-on wheel weights. 9. Attach inboard corrective weight. Note: The machine wakes up using standard clipon wheel weight locations (Clip 1 & Clip 2) and wheel dimensions. Use the most appropriate mounting method. 3. Always remove any weights already attached to the wheel. 4. Enter A & D wheel dimensions using offset arm.
Principle Operating Parts A J D K C B H G E F 1250 Non-video Shown 3 2• Do It Now! Now is a good time to fill out the Owner’ s Registry Card. Important: Always read and follow the information box instructions.
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. Power Switch The ON/OFF decal (figure 4) indicates the ON/OFF switch location at the back of the balancer. Prevent accidents and injuries by ensuring the unit is properly installed, operated and maintained.
When prompted by balancer instructions, use the offset arm (figure 6A) to enter A & D measurements automatically. Pull the arm out and up against the wheel flange; hold it still at the clip-on weight location (figure 6B), against the wheel flange, and wait for the BEEP. Note: The T2 - Tape Direct Select™Weight position is the only mode that requires the A2 & D2 dimension measurements. Note: Use laser locators for correct positioning of the T2 - Tape Direct Select™Weight position, refer to pages 5 - 6.
Using The Line Laser If the T2 - Tape (hidden Tape-A-Weight®) location is selected, use the line laser to align the offset arm with the laser locator dot (figures 8 & 7B); entering A2 & D2 measurements automatically. Grasp arm at the line laser and pull out and up to the wheel flange (figure 6B). Hold arm still at the clip-on weight location and wait for BEEP. Then, before returning arm to home position, press button on line laser to activate the line laser beam.
Laser Guided Operation™System 9. Respin tire/wheel to check balance. The operator must select T2 - Tape Laser Locator to activate the Laser Guided Operation™feature, see page 8 for the button selection. This Direct Select™weight location is used when placing hidden adhesive weights at the inner area of the wheel and is the required weight location selection for the Behind Spoke mode.
Setting Wheel Dimensions (DIM) Basic Wheel Data Entry Before a wheel can be balanced, wheel dimensions must be entered into the computer. 1. Select the Clip 1 or T1 -Tape weight location and the T3 - Tape or Clip 2 weight location. Definition of Dimensions (DIM) 2. Position offset arm at clip weight location; wait for BEEP (A & D enters automatically). A = Offset W = Width The distance measured from the balancer (“ 0” on offset arm) to inner plane of the rim (inner weight location).
Control Panel Function and Review If you select/press … a Direct Select Weight key (Clip 1, T1-Tape, Patch Static, T2-Tape, T3Tape, or Clip 2) the T2-Tape key the Dynamic/Static key(s) the Behind Spoke key the Spoke 1/Spoke 2 key a Wheel Dimension key (A, D, or W) the Next key the Stop & Exit key hold Shift and press 1 hold Shift and press 3 hold Shift and press 4 hold Shift and press 5 hold Shift and press 6 hold Shift and press 7 hold Shift and press 8 hold Shift and press 9 Then … on the Wheel Cross-sec
6 1 2 2 3 7 4 9 8 5 Figure 14A - 1250 Video Control Panel Feature Reference 6 1 2 2 3 4 7 5 8 9 Figure 14B - 1250 Non-video Control Panel Feature Reference Important: Always read and follow the information box instructions.
Control Panel Quick Reference Screen Saver Mode (Video) By default, the 1250 video version wheel balancer is shipped with the screen saver mode set to dim the display back light after a period of inactivity (20 minutes). Press and hold the SHIFT key and press 0; then 18 to cycle through the screen saver modes. For each mode, the balancer will display a short demo of the active back light option.
Direct Select™ Weight Placement Location Before spinning the wheel, use direct select to indicate weight placement locations as follows: Note: When the machine is turned ON, the balancer defaults to a 2-plane dynamic mode using standard clip-on wheel weight locations (Clip 1 and Clip 2) and wheel dimensions. Clip 1 Top Center - select this location to place a standard clip weight on the inboard rim flange.
Balancing Using Direct Select™ Static Balancing A variety of wheel configurations can be balanced using this wheel balancer. Read through this section, it will help in determining which mode and options are best suited for certain wheel assemblies. Refer to pages 1 - 7 to balance the wheel, for measurement and weight placement techniques. Refer to pages 8 11 for Control Panel functions. Choose a static balance for wheel assemblies that are not possible to balance dynamically or for narrow wheels.
Begin by following the Laser Guided Operation™procedure, steps 1 through 4 on page 6. 1. When unbalance is displayed, rotate wheel until inboard center bar blinks. Attach inboard corrective weight at top-dead-center. 2. Next, rotate wheel until the outboard center bar blinks and the two bars on either side blink. Note: The laser locator dot will stop blinking. 3. Select the BEHIND SPOKE mode option.
Mounting Wheel on Spindle Shaft CAUTION Avoid back injury, seek assistance when lifting heavy tire/rim assemblies onto the balancer shaft. Select the most appropriate mounting method for the wheel you are balancing. Using the proper method ensures secure mounting and safe balancer operation, and prevents damage to the wheel. On most wheels, the inner side of the wheel hub usually has the most uniform surface for wheel balancing.
Standard Front Cone Mounting A wheel should be centered by the outer side of the hub only when the inner surface will not provide an accurate surface to center on. 1. Select the cone that best fits the center hole in the wheel. 2. Lift the wheel onto the shaft and slide it back against the shaft faceplate. 3. Slide the cone onto the shaft and into the center of the wheel. You will need to lift the tire to seat the cone in the center hole. 4. Install the hub nut (without pressure cup) onto the shaft.
Match Balance (Optimization) The Match Balance (Tire/Rim Weight Optimization) procedure is used to determine the best mating of tire and rim that will result in the least amount of total unbalance of the assembly. It requires two spins and two rotations of the tire on the rim. Match Balance may be needed when: • The customer complains of ride problems. • The balancer calls for Total Static weights in excess of 3 ounces (85 grams) on passenger car tires.
Calibration Machine Calibration Important: Be sure to use the correct calibration weight amount: a 4-ounce calibration weight in ounce mode or a 100-gram calibration weight in gram mode Important: Starting with software revision 2.0.1.9, the factory default is set for a 4-ounce calibration weight amount for both the ounce and the gram weight measurement modes. Therefore, for Machine Calibration, only the 4-ounce calibration weight is necessary regardless of the weight measurement mode setting.
3. Bring the tip edge of the arm precisely to the outer edge of the faceplate and hold it there while pressing the NEXT key. (If necessary to reach the faceplate accurately, loosen the calibration wheel temporarily.) 4. With the arm still at the edge of the faceplate, enter the A dimension shown on the arm rod. Press the NEXT key. buildup will cause inaccurate balancing and premature wear. Clean these items at least once a day with a vaporizing solvent. 3.
Diagnostic Procedures After Balance Vibration Problems If vibration is still present after balancing the wheels and driving the vehicle on smooth pavement, remove the wheels and recheck the balance. If a wheel is out of balance the cause maybe: • Wheel was not mounted/centered correctly on the balancer. • A weight has come off the wheel (possibly the wrong clip style). Remove the other weights from the wheel and rebalance. • Foreign material inside the tire.
Installation Instructions Setup Receiving The shipment should be thoroughly inspected as soon as it is received. The signed bill of lading is acknowledgement, for the carrier, of receipt in good condition of the shipment covered by our invoice. If any of the goods called for on this bill of lading are shorted or damaged, do not accept them until the carrier makes a notation of the shorted or damaged goods on the freight bill. Do this for your own protection.
Specifications Features Wheel Diameter Range 8 - 30 inches • Automatic Data Entry for Offset and Diameter Manual Entry Backup on all Parameters Wheel Width Range 2 - 20 inches • Static-on-Screen™ • Four Fixed Function Keys, Seven Program Keys for user Friendly Operation Maximum Outside Tire Diameter Up to 44 inches • Direct Select™Weight Placement Location Maximum Tire/Wheel Weight 160 pounds (68 Kg) Dynamic (Standard): Clip-on Weights Alloy: User Defined Static Patch (Tire Weight): Static Only • B
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