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Lawn Mower Blades (Read 72 times)

rl153 Serious Thumper Offline S40 Just right! Posts: 900 Bloomfield,CT Gender:	Lawn Mower Blades 05/18/19 at 11:45:56 I have an old craftsman 22" self propelled lawnmower . It's set up to mulch, but I found a brand new high lift blade the right size. What will happen if I use the high lift blade when the mulch cover is still on. Will it be a problem? Thanks!
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Re: Lawn Mower Blades
Reply #1 - 05/18/19 at 14:16:45

A high lift blade is intended to move a lot of air to suck the grass totally vertical for nice clean cutting and to carry clippings up and over into a bag or a hopper.

By running the mulch cover and a high lift blade, you starve the total air flow and will not get the stuff elevated up into the bag. You also waste gasoline moving the high lift blade while not using the positive effects from it. The engine runs a little hotter because of the extra blade resistance trying to move air with nowhere to go.

But it isn't a major sin .....

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rl153 Serious Thumper Offline S40 Just right! Posts: 900 Bloomfield,CT Gender:	Re: Lawn Mower Blades Reply #2 - 05/18/19 at 14:59:52 I don't use a bag, it just goes back on the ground. Isn't that what mulching is? Thanks for letting me know it's not that terrible to do.
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thumperclone Serious Thumper Alliance Member Offline PGR rider riding with respect Posts: 5809 Grand Junction Colorado Gender:	Re: Lawn Mower Blades Reply #3 - 05/18/19 at 15:04:56 get a mulching blade
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rl153 Serious Thumper Offline S40 Just right! Posts: 900 Bloomfield,CT Gender:	Re: Lawn Mower Blades Reply #4 - 05/18/19 at 15:32:23 I would get a mulching blade, but I already have this new other blade. If it doesn't hurt to use it, I'd like to try it.
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engineer Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 872 Gender:	Re: Lawn Mower Blades Reply #5 - 05/18/19 at 18:31:01 I have used high lift blades in a mulching mower and the results may not have been optimal but there were no apparent ill effects.
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rl153 Serious Thumper Offline S40 Just right! Posts: 900 Bloomfield,CT Gender:	Re: Lawn Mower Blades Reply #6 - 05/19/19 at 04:34:38 Thanks!
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Ed L. Serious Thumper Alliance Member Offline "We All go a Little Crazy Sometimes" Norman Bates Posts: 2808 Sunny Florida Gender:	Re: Lawn Mower Blades Reply #7 - 05/21/19 at 06:55:25 Slow down a bit on your tractor speed and get more revolutions per foot, it will work just fine. With all the sand down here in Florida I wear out a set of blades in 3-4 months and had to reinforce the mower deck with 1/16 inch plate steel.
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rl153 Serious Thumper Offline S40 Just right! Posts: 900 Bloomfield,CT Gender:	Re: Lawn Mower Blades Reply #8 - 05/21/19 at 08:51:43 Thanks!
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