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DECK BELT BROKE CAN NOT FIND IT ANY PLACE the number i thought was the correct one is not at all please help grass looks like a jungle

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  • mammasangels Jun 16, 2009

    it is a 42 inch cut troy built model number N779 belt I need is 75404001
    thank you in advance

  • mammasangels Jun 17, 2009

    Thank you everyone with the fast responses so glad I found this site

  • panilling9
    panilling9 May 11, 2010

    need make and mod # of tractor off of a nameplate or sticker

    and what inch cut?

    KEN LaPOINT May 11, 2010

    Need to know the make and model number of your lawn tractor...that way we can narrow this down for you.



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click on troybilt
look to the left of page and enter the number you gave me
they have plenty of them

Posted on Jun 16, 2009

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You can get it thru farm and tractor supply's "order tree" site simply type in your part number and it shows up for 18.25 ... CLICK HERE

happy mowing!

Posted on Jun 16, 2009

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All you need is the tractor model number and the deck size. (36" or whatever). If you can't find the size written on it, measure the width. Depending on the maker there may be a tag right on the deck telling you the deck's model number. (Any tractor can have different size decks). Look up that tractors dealers in the yellow pages or Google them and go over there with that info. They'll sell you the right belt. If they are the ones who sold you the wrong belt in the first place they'll probably exchange it as long as you didn't ****** it up. Receipts help a lot.

Posted on Jun 15, 2009

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1 Answer

Craftsman LT2000 lawn tractor keeps throwing deck drive belt

Keep in mind that the mower deck gets to be raised and lowered into the desired mowing height, with no change to drive pulley (at motor) height. This requires a belt long enough to allow the furthest reach (usually with deck dropped to lowest setting) and a spring loaded tensioner pulley, to take up the slack (and keep the belt tight) as the deck is raised. There may also be a belt guide or two incorporated to help keep the belt from jumping ship in the process. Sometimes these are just a heavy gauge steel wire loop that attaches near the pulley to keep the belt from jumping if it gets slack. Possibly you didn't thread the belt through or under it properly, or have missed the tensioner pulley.

It could also be the tensioner spring is broke or has fallen off or become too weak. Have someone move the deck up and down (with motor off, and belt installed) while you watch to see there is any obstruction in path. Also look for the belt becoming loose at a certain point. Some tensioners have the spring built in to the pulley and you can't really see them. They have to be pre-loaded, by rocking the pulley spindle assembly against the spring force while you slip the belt over it. Sometimes the belt looks fine and not loose in static (not moving) condition, but when the blades are spinning fast and the throttle is closed with no load (no thick grass being cut) the blades momentum will cause a belt sag that is supposed to be taken care of by the tensioner. It can get pretty grimy down there, also very dry, dusty and caked with cement like old clippings. Check the manual and find out where your tensioner is, then check it to make sure that it can move freely and it isn't locked tight by debris or rust. Also good to check if there has been an update to your mower. Sometimes these problems cause a manufacter to offer a better spring, or change pulley sizes to correct a common problem.

Aug 11, 2014 | Garden

1 Answer


under the deck ether running backwards are forwards depending what drive your useing but all under deck you might have to dig thrugh the grass but its there unless it broke then look for the pully on the blade shaft

May 27, 2013 | Mtd Yard - Man 160cc, 21" Self - Propelled...

2 Answers

Craftman 42 inch riding mower deck shakes and make noise

sounds like he bent a blade that's when the belt went

Apr 10, 2012 | Garden

1 Answer

When i cut my grass it seems to leave 2 strips of grass behind, it seems to co-inside with where the blades spin close to each other. Now I have looked under the deck and tried to align the blade up ( iwas...

Your blades are worn and need replaced.

The momentary squeal is nothing to be concerned about. If it were prolonged then it would require disengaging the blades and investigating so as not to destroy the belt, but that is not the problem that you have (informational only).

You should not waste your time worrying about blades orientation. If you look at the deck the blades are not all in the same line. They are staggered to allow for correct cutting without blades hitting eachother. This is by design.

You should find that replacing the blades will eliminate the 2 stripes of grass you are leaving.

If you find this really helpful, please rate four thumbs up.

Jul 19, 2011 | Husqvarna YTH2454 54in 25 HP Lawn Tractor

1 Answer

Troybuilt riding mower won't pickup grass

can you tell me if unit has timmed blades and is the unit a rear catching unit ?

be sure engine speed is correct most applications this between 3400-3600 rpm
if unit has timmed blades - be sure that the blades are timmed correctly , and the correct blade is on correct side

if not timmed be sure blades are sharp and balanced , make sure the wing turn up is ok ( blade speed and turn up creates air velocity)

make mandrell vents are clear if unit has them , make deck belt is not slipping, and is not damaged
make sure deck belt tension is correct

make sure pulley splines are ok and are fixed tightly to spindle shafts and keys are in place

make sure the catcher vents or bag are clear and air can flow through,

lastly be sure that the deck is set level side to side and the deck has between 5 - 10 mm rake that is the height of front of the deck is 5- 10 mm lower than the rear of the deck
and the deck lifts up evenly

note let me know model and spec number of ride on mower
will try and help further if this info does not help

cheers paul46

Sep 13, 2010 | Troy Garden

3 Answers

Belt slipping when in heavy grass. Is there an adjustment for belt tension?

this belt streching thingy is a made up fairy tale,that dealers want you to youll buy more belts really strech..?
ya..a little..but id bet your real culprit is the pulley..there is a tention spring that usually gets knocked out of place..or there is a build up of grass hindering its progess....your there is no adjustment...
drop your deck to its lowest setting and play around with that pulley till you see it getting tighter...then engage your deck blades(with the mower turned off)and move the pulley to free it from its off track position..take out the grass thats collecting in there also(dont roll it up and smoke it)
and you should be fine...good luck...ive been there..actually last week i did the same thing...the first thing i thought was...My belt

Jul 15, 2009 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

1 Answer

Deck belt problem.

MTD belt MTD-954-0291A might work. They cost about $27. They are about 87 1/2 inches long. Just a thought, might fit. Good luck and hope I helped.

Jul 10, 2009 | Garden

1 Answer

Won't engage blades to cut lawn

Is the belt on the pulleys ? If so your cable is broke its what engages deck belt

May 09, 2009 | Craftsman 20 hp 42 in. Deck Lawn Tractor -...

2 Answers

Owners manual

Maintaining Riding Mowers Regular maintenance can reduce repairs. pagetools_04a.gif spacer.gif spacer.gif
Components of a typical riding lawn mower. (click to enlarge)
It's fun to ride around the yard on the mower, watching scrubby grass (and weeds) turn into trimmed lawn. However, when the grass looks as bad after you mow as it did before, or the mower doesn't want to start, riding mowers aren't as much fun. That's when it's time to put on your Fix-It Club hat and have some more fun.

A riding lawn mower is a gas-powered machine for cutting grass. The engine turns a rotating blade that cuts the top off the grass blades to a specified height. The operator sits atop the mower on a tractor-type seat with speed and height controls nearby. Riding mowers also can be used to pull small utility carts for other yard jobs.

To remove the mower deck:
  1. Make sure that the parking brake is locked.
  2. Place scrap lumber under the front and rear of the deck.
  3. Use the deck lever to lower the deck.
  4. Remove attachments from the deck.
  5. Remove the blade drive belt from the front pulley.
  6. Remove the front and rear deck fasteners, following instructions in your owner's manual.
  7. Use the deck lever to raise the deck.
  8. Remove the scrap lumber.
  9. Remove the deck from under the mower.
To adjust the drive belt:
  1. Remove the belt from the large idler pulley.
  2. Remove the belt from the adjustable idler pulley.
  3. Carefully remove the spring-loaded large idler pulley.
  4. Loosen the adjustable idler pulley and move it slightly toward the rear of the mower to tighten it[md]or move it toward the front to loosen it—and retighten the pulley.
  5. Replace the belt.
  6. Check belt tension and readjust as needed.

Apr 12, 2009 | Garden

2 Answers

Weedeater 12.5 hp 38

thats a ayp deck.
the 38 and the 42 take the same belt

Aug 29, 2008 | Garden

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