This warranty is extended only to MAGNA-MATIC's commercial customers. To protect the quality of this tool, every step in its manufacture has been carefully controlled. It is constructed of only the finest materials by skilled craftsmen who take pride in their work. MAGNA-MATIC CORP warrants the tools manufactured and/or repaired to be free of defects in material and workmanship for a period of 365 days after purchase. Any tool or part proved to MAGNA-MATIC's satisfaction to be defective during that period will be repaired or replaced at MAGNA-MATIC's option if returned prepaid. MAGNA-MATIC's sole obligation and your exclusive remedy under this warranty shall be limited to such repair or replacement. In no event shall MAGNA-MATIC be liable for any consequential or incidental damages. This warranty does not apply to parts (motor & grinding wheel) not manufactured by MAGNA-MATIC or failing due to ordinary wear, subjected to abuse, accidental damage, improper operations, maintenance or repair, or to other damage by circumstances beyond MAGNA-MATIC's control. THIS WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER EXPRESSED OR IMPLIED WARRANTIES INCLUDING WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. WARRANTY MAG-7000 Arbor Balancer SERIES (Series includes MAG-7000, MAG-7001, MAG-7002, etc.) OPERATING INSTRUCTIONS Patent Applied For MAG-7000 MAGNA-MATIC CORP. can repair all of their products. If you have a product of ours, it can be repaired, reconditioned, or replaced. Just give us a call for a quote and send the equipment to us at the address on the cover of this booklet. MAGNA-MATIC CORP. has been serving you since 1958 producing service tools to increase your profit. You are the owner of the most productive balancers available. Covered by patents 2,987,924-2,992,4885,398,550-5,503,015 MAG-7002 USA & Canada Toll Free 1-800-328-1110 © Copyright MAGNA-MATIC CORP. 1998 MAG-7000 & MAG-7002 (with clutches mounted) Primary and Secondary Variable Clutch Balancers MAG-3000 Chipper Blade Vice Now for the first time sharpen chipper blades of various sizes as fast as a lawnmower blade MAG-9000 Blade Sharpener The FASTEST and most PRODUCTIVE lawnmower blade sharpener MAG-JOB-SHOP FABRICATION MAG-11000 Shop Exhauster Emmisions regulations ARE HERE BE PREPARED with the first system designed for the outdoor power industry MAG-1000 Blade Balancer The ORGINAL (in production for over 40 years) is still the lawncare professional's FIRST choice MAG-10000 Service Center Stand An egronomic "must have" for any lawncare professional Phone: 920-564-2366 Fax: 920-564-2368 GENERAL USE OF THE ARBOR BALANCER As soon as one side is greater or less, the force of gravity will bring the heavier side to the 6:00 o'clock position Let the hub product rotate freely until the heavy end comes to a rest at the 6 o'clock position. Mark the 6 o'clock location on the ouside of the sheave. This is the heavy side. Rotate that mark to 3 o'clock and remove your hands. Gravity has its greatest effect on the heavy side at the 3 o'clock position. The out of balance condition is (Lx)(Wx) = moment (Moment = length of arm times weight is expressed as inchoz or cmg). To determine the actual moment, measure the length then place a known weight on the opposite side, great enough to balance both sides. In the event that the arbor does not rotate freely, return the instrument to us for evaluation. Under no circumstance should force greater than manual hand push be applied! MAGNA-MATIC Arbor Balancers are precision measuring instruments to measure the balance condition of the Hub Product. KNOWLEDGE AND PROCEDURE FOR MAXIMUM BALANCE ACCURACY MEASURMENT The acceleration of rotation of the heavy end from the 3 o'clock position is a indication of how much the product is out-of-balance. DO NOT DROP OR MISUSE! USE INSTRUCTIONS Instructions given with this symbol are for personal safety. Be sure you and your workers follow them. Before using any equipment read and understand the instructions. A careful operator is the best insurance against accidents. PRODUCT CORRECTION Remove a small amount of non-critical material at the 6 o'clock position. Re-check the mark at 3 o'clock until the product remains stationary -- NO MOTION A balanced product must be checked to be in balance at least at 12, 3, 6, and 9 o'clock. A balanced hub product must remain stationary at any position. There exist two types of dry (Coulomb) friction A - Static Friction no motion B - Kinetic Friction motion F MOUNTING THE BALANCER Mount on a vertical upright stand, with two (2) bolts (5/16" recommended) Assure that ample hub product rotational clearance exists. The hub product to be measured must be free to rotate. Static It takes more force to get impending motion than to keep moving. Kinetic Don't be injured by a falling Hub Product. MAGNA-MATIC Arbor Balancers hold the hub product by sliding the hub over the arbor or by pushing (snugging) the hub onto the taper. For maximum accuracy check the hub product in various positions. Place a mark at 3 o'clock use your hand to lightly tap the table where the balancers' vertical upright stand rests. This procedure is not to be performed on taper arbor balances Vibration can break the taper and let the product fall. A slight vibration into the bearings will overcome the greater static force to help impending motion, if there's an out of balance condition. The accuracy of this balancer is limited to the A - Concentricity of the arbor B - The frictional force of the bearing. Both are in the super precision range and for this application achives greater accuracy than may be necessary. HUB PRODUCT MOUNTING INSTRUCTIONS With both hands slide the straight hub product hole over the arbor. With equal force push snug, the taper hub product into the taper arbor. Remove your hands slowly making sure that the straight or tapered arbor holds the hub product firmly. The hub product is held by the arbor balancer to rotate freely. Hub Product Removal Instructions For Straight Arbors: Use both hands and, with a firm grip, slide the hub product off the arbor. Use one hand to hold the product and, with another, use a plastic hammer and tap the outside of the sheave; thereby braking the taper lock BALANCE MEASURMENT 12 o'clock W2 For Taper Arbors: MAINTENANCE Regularly keep the arbor clean. For repair return the balancer to MAGNA-MATIC CORP. The balancer is mounted on precision bearings. It will free spin when applying an external force. Don't free spin the balancer by hand or compressed air. It may injure you with flying disintegrated debris. L1 3 o'clock 9 o'clock L2 CHECK THE BALANCER'S ACCURACY Select an out-of-balance hub product and mark the heavy end. Place a mark (felt-tip pen) on the outside of the arbor balancer. Position the mark on the arbor at 12:00 o'clock and mount the selected product with the heavy end at 3:00 o'clock. Let it free swing out and record the location of the heavy end. Repeat the procedure positioning the mark at 3:00, 6:00, and 9:00 o'clock with the heavy end always starting at 3:00 o'clock and record each. W1 NO MOTION 6 o'clock L1 x W1 = L2 x W2 Conclusion: NO ROTATION 1. 2. The balancer is most accurate when the differential of the recordings are least. When the differential exceeds 4 hours or 120º the balancer may need service. It's a free call 1-800-328-1110 to order or just to ask questions about your MAG-Series Precision Balancer ...