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  • Blueing the blade?

    Can someone explain to me how to sharpen a blade correctly and not blue the blade? Can someone also explain what it is and how to avoid this. Thanks.

  • #2
    When a blade has a blue tinge, it's caused from the blade getting to hot when sharpened. Finer the grit of the grinding wheel, the easier it is to get too hot.

    Run the blade quicker back and forth on the grinding wheel with less pressure to reduce bluing. That still may not help much if you have a really fine grit grinding wheel.

    I use a commercial sharpener called the magna matic. It works great and doesn't blue the blade unless I try to rush it. This isn't practical for a home owner, they are expensive. It's also important to balance your blades. It saves the life of your bearings in the spindle and reduces vibrations when blades are properly balanced.

    *New blades are seldom balanced.
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    • #3
      thanks for the feedback. That's eye opening that new blades are seldom balanced. I looked up the magna matic and wow on the prices.

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      • #4
        thanks for the feedback. That's eye opening that new blades are seldom balanced. I looked up the magna matic and wow on the prices.
        on a side note the first mowing will make a blade unbalanced as well, but the better you start out with the better you end up.
        I am the owner of www.AllOutdoorParts.com an online mower parts distributor. I am also a Briggs Master Service Technician and Expert Certified Mechanic for Kohler. If my posts helps you please like my facebook page at www.facebook.com/alloutdoorparts

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        • #5
          What is the downside to blueing the blade? A lot of readers may not understand this.
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          • #6
            What is the downside to blueing the blade? A lot of readers may not understand this.
            It doesn't hold the cutting edge nearly as long.
            Don't Keep Replacing Lawn Sprinkler Heads
            Protect them with "Sprinkler Buddy"
            CLICK HERE > http://www.sprinklerbuddy.com

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            • #7
              What is the downside to blueing the blade? A lot of readers may not understand this.
              when you change the color of the blade to a blue color you have taken the tempering out of the steel causing the metal to soften allowing it to dull faster.
              I am the owner of www.AllOutdoorParts.com an online mower parts distributor. I am also a Briggs Master Service Technician and Expert Certified Mechanic for Kohler. If my posts helps you please like my facebook page at www.facebook.com/alloutdoorparts

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              • #8
                how exactly do you guys balance your blades? I never have because I couldn't figure it out...

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                • #9
                  After you sharpen the blade, use one of these

                  http://www.lawnboss.net/images/blade_balancer.jpg

                  or you can put a nail into a vice and make sure the blade is not weighted to one side.

                  Here's a video on how to sharpen blades

                  http://www.youtube.com/watch?v=nK2bo3esbAI

                  When you put a blade on the balancer, the side that is lower, needs to have a bit more ground off of it.
                  http://www.lunchesruslawncare.com

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                  • #10
                    I use a 4 1/2 angle grinder, clamp the blade on the work bench, then holding the grinder at about a 40 degree angle to the flat of the blade start grinding. DO NOT hold it in one place and DO NOT push hard. If you do you will the steel 'blue' that is over heat and lose tempering. Grind untill the cutting edge is straight and sharp. Make a pas then spray water on the blade, make another, repeat untill sharp.

                    If you do not feel comfortable doing this go to you local dealer they usually have a small charg-here its 5 buck to sharpen blades (two).

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                    • #11
                      After you sharpen the blade, use one of these

                      http://www.lawnboss.net/images/blade_balancer.jpg

                      or you can put a nail into a vice and make sure the blade is not weighted to one side.

                      Here's a video on how to sharpen blades

                      http://www.youtube.com/watch?v=nK2bo3esbAI

                      When you put a blade on the balancer, the side that is lower, needs to have a bit more ground off of it.
                      Please do not follow that guys video just sharpen the blade on one side at a 30 deg angle and use a blade balancer like the above post.
                      I am the owner of www.AllOutdoorParts.com an online mower parts distributor. I am also a Briggs Master Service Technician and Expert Certified Mechanic for Kohler. If my posts helps you please like my facebook page at www.facebook.com/alloutdoorparts

                      Comment

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