User manual MAGNA-MATIC MAG-1000

[. . . ] C - Balancer mounting location should not be subjected to air ow (fans, wind, etc. ). D - Use (2) bolts 5/16 inch to mount the balancer in its (2) mounting holes. E - See MAG-10200 or MAG-103 Instructions for stand mounting instructions. MAG-10200 Service Center Stand Mounting MAG-103 Test Stand/ Mounting Bracket shown mounted on a work bench Wall Mounting 3 3 Inspecting the Balancer Inspect the balancer for proper function. With use, the sliding force will decrease - warmer room temperatures will also make the slide move more easily. [. . . ] The result should be that the blade is now securely located on the cone, and held there by the magnet. SEE BELOW the overhead view of the balancer and blade 3 - Slowly remove your hands and check that the blade is held rmly before completely removing your hands. 1 3 NOTE: Always wear protective gloves when handling lawn mower blades - gloves were not worn in photos to show maximum detail of hand positions. 2 4 5 6 6 Check Blade Straightness This will guide you through the process to see if a blade has become bent from use damage. 1 - While the blade is mounted on the balancer. Turn the blade on the balancer so that it is vertical on the balancer (have one cutting edge pointing to the sky, and one to the ground. 2 - Now position the gauge rod to almost touch the backside of the blade SEE IMAGES TO THE RIGHT 3 - Rotate the blade to compare the distances of one end of the blade to the other. If they are the same - the blade is "at" or "straight. " 4 - See your blade manufactures tolerance requirements to determine if the blade should be discarded. NOTE about BLADE STRAIGHTNESS The longer the blade, the greater the deviation that can be allowed between the two blade ends. Conversely, the shorter the blade, the lesser the deviation that can be allowed between the two blade ends. WARNING Do Not attempt to straighten a hardened blade. REPLACE ALL BENT BLADES 7 6 Check Blade Straightness General Guide: 18" - 24" long blades can allow up to 3/8" deviation 24" - 28" long blades can allow up to 1/2" deviation 28" - and larger blade can allow up to 5/8" deviation WARNING Do Not attempt to straighten a hardened blade. REPLACE ALL BENT BLADES 8 7 Check Blade Balance This will guide you through the process to gauge a blade's out-of-balance condition. 1 - Have the blade mounted on the balancer. 3 - If the blade remains HORIZONTAL the blade is "HORIZONTALLY IN-BALANCE. " 4 - If one end of the blade rotates to the 6 o'clock position of the clock face - THIS IS THE HEAVY END. Material will need to be removed from this end to bring the blade "IN-BALANCE. " Remove material from the cutting edge during sharpening - USE a MAGNA-MATIC [MAG-8000 or MAG-9000] to properly sharpen a lawn mower blade. NOTE: The blade will still be "IN-BALANCE-TOLARANCE" if it moves slightly from the horizontal position. ALL MAGNAMATIC Balancers are delicate instruments that are to be operated with manual force only. Do not misuse the balancer. 1 3 2 NOTE: Always wear protective gloves when handling lawn mower blades gloves were not worn in photos to show maximum detail of hand positions. 9 7 Check Blade Balance (cont) This will guide you through the process to gauge a blade's out-of-balance condition. RE-EXPLAINED - (clock face example) Think of a "scale, " "balance, " or "see-saw. " As with any of these, when there is an IMBALANCE of weight on one end it will rotate toward the ground, because of gravity. After you have the blade mounted on the balancer, look at the blade on the balancer and think of a CLOCK FACE. With your hand rotate the blade so that it is horizontal, with one end pointing at 3 o'clock and the other end pointing at 9 o'clock. Now let go of the blade, so that it will freely rotate or remain stationary. When a blade is "out-of-balance" the "heavy end" will rotate to 6 o'clock. Take note of which end of the blade falls to 6 o'clock AND how fast it falls. These two factors will indicate which end of the blade is the "heavy end, " and how "out-of-balance" the blade is. [. . . ] 2 - Make a mark on the face or magnet ring of the balancer (use a felt marker). 3 - Rotate the mark to every position of the clock face (1 o'clock - 2 o'clock - etc. ) then let go of the balancer at every position very carefully - to see if it will rotate on its own. Your mark should not move at any position, this shows that the balancer itself is in balance. 4 - Be sure your hand or the mounted surface is not moving, the balancer will pick up the slightest vibration or motion. [. . . ]