Question about Husqvarna 48" Tractor Mulching Kit (HU48) 531 30 9642

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I have two sets of blades with my husqvarna 48 in mower. Which blade is for mulching and which is for regular mowing. I can not figure out which one is which. One set has a very disinct raised uplift on it. Thanks

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The mulching blades usually have serated lifts or a second sharp edge closer to the center of blade and is usually humped hope this helps

Posted on Aug 08, 2010


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During mowing grass will gather underside of deck leaving 2 streaks on r and l if you turn deck off grass will fall out of deck before restarting u need tgo move or mower will stall from grass build up...

There are a couple of things going on here. First, the blades are likely worn out and need replaced. As they wear and loose some length they can leave a trail. Second, if you have regular blades on a deck configured (by having discharge plugged) for mulching and you are using regular blades, then you can have a problem with build up. Third, you can have clumping problems if the grass is not dry when you are mowing.

I hope this is helpful for you.

Aug 24, 2011 | Ariens 48" Riding Lawn Mower Blade ...

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I replaced the blades on my Husqvarna Lawn Tractor 48" Deck, 23 Hp, Model# Yth2348 by tipping it on it's side and now the mower looses power when going up the smallest incline? I bled the air out...

Not the float.
Where you mowing when you had the problem or were you just driving the mower? If you were mowing, then disengage blades and see if it returns to full driving power. If you were just driving, then with it sitting, engage the blades and see if problem recurs. The blades are the bigger load on the engine, your mower will drive around with a little 4HP engine, all the extra power is for the blades and if pulling anything.
Let me know what the test results were, so we can figure out if it is in the carburetor or not.

Aug 12, 2011 | Husqvarna Lawn Tractor 48" Deck, 23 Hp,...

2 Answers

To mulch my grass clippings, do I have to use the side discharge or can I simply remove the bag and insert the rear plug?

Insert the rear plug if mulching is desired. The key to mulching is to mow the lawn frequently.You want to keep the mower deck height high enough to cut the grass and allow the mulching blades to work, but just low enough to actually cut the grass in a smooth uniform height. To low of a cut setting will clog the mower and create a mess. 2 times a week is a good frequency to start with.

Jun 10, 2010 | Toro Lawnmower 20099 Mower Mowers Lawn

2 Answers

Mulching problems everytime I mow the yard looks bad. Have to go over and over to get it to cut up all clippings. Grass is dry and not that high. Have tryed it at different cutting levels but still dodes't...

I gave up on mulching blades years ago for this sort of problem, but I think they have improved them since then. And your problem sounds a bit extreme. Are you certain that the blade is not upside down? (They look pretty weird and their correct orientation is not obvious.)

Apr 23, 2010 | Husqvarna Lawn Tractor 48" Deck, 23 Hp,...

1 Answer

Mulching blade

The bump goes toward the deck. Have a nice day.

Jan 12, 2010 | Husqvarna Lawn Tractor 48" Deck, 23 Hp,...

1 Answer

Can a mulching blade work in a non-mulching mower?

True Mulching mowers have a specific deck design to them, but I would say yes to your question.It's been quite a few years, but I have done this little conversion myself - replace regular blade with a mulching blade. Just make sure the mulch blade does fit your mower. Also, use something substantial in terms of strength to close the discharge opening. There can be a good deal of force placed at the opening from flying debris. You'll also want to make the cover removable, so you can mow damp grass without the cover.

Jun 02, 2009 | Garden

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