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How do I replace belt on pulley (where it drives blades)

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  • 338 Answers

Lyn, the attached photo shows a common deck design. I recommend removing the pins that hold the deck to the carrier frame. This will make it easier to check the parts for wear or miss alignment. sometimes there are covers over the pulleys that can be removed with a few screws. Once the old belt is removed the new one can be put in. How do I replace belt on pulley (where it drives b - 1_31_2014_3_27_15_pm.gif

Posted on Jan 31, 2014

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6ya6ya
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Posted on Jan 02, 2017

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RonInFla
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SOURCE: HOW DO I REPLACE A BLADE DRIVE BELT

its' in the owners manual

Posted on Apr 18, 2010

Biggdex35
  • 333 Answers

SOURCE: I have a Murray Ultra lawn tractor model #4681X6B

Try taking the belt off of another pulley, put it on the other ones and the tensioner pulley, then start it on the last one and pull the tensioner and get the slack in the belt and roll the pulleys and it will feed the belt on that pulley.

Posted on May 11, 2010

  • 3911 Answers

SOURCE: one blade cuts and one doesn't. Is this a pulley

Set the thing up on some blocks and try to remove the blade which does not turn. Since your belt is working, the pulley must be spinning or there would briefly be an awful racket. If the pulley is spinning but the blade is not then there is something wrong with the mandrel/spindle, or the blade has come loose and has somehow not cut off anyone's foot. Sometimes the pulley and top of the mandrel become rounded out but again there would be some metal on metal noise. Often there is a star shaped protrusion on the bottom of the mandrel which locks into the blade and by virtue of hitting some immovable object, that unstoppable keeper has been destroyed.

Posted on Jun 28, 2010

  • 1 Answer

SOURCE: Drive (motion) belt has come off the rear pulley twice in a month

husqvarna yth20k46
drive belt came off
fix
transmission boltes were not installed
replaced fix problem

Posted on Oct 28, 2010

  • 6 Answers

SOURCE: drive belt is too loose, already replaced belt and

I had the same problem with my Craftsman Lawn Tractor. The Drive Belt (which is not adjustable) is only engaged when the Brake Pedal is released (the Brake Pedal is located on the left side of the tractor, near the foot rest on my Tractor).

The Symptoms: My Tractor lacked driving power, and would not go up an incline, but the mower deck was powerful and working fine, even though the Tractor seemed to lack power and moved slower than usual, and would not travel up an incline.

I too, changed the Drive Belt, which initially seemed to help somewhat for a very short period of time, and then the same, lack of power problem, re-appeared again. The belt was not the problem, but only seemed to work somewhat due to the rougher texture of the belt's surface against the pulleys.

I also changed the Plastic Clutch Pulleys that engage the Drive Belt, thinking that they may have been worn down to a point that the Drive Belt could not fully engage with these Pulleys. No Luck.

NO ONE, NOT EVEN SEARS ON-LINE REPAIR ADVICE CENTER HAD A SOLUTION. THIS WAS VERY FRUSTRATING INDEED.

There had to be a solution: After much investigation, I eventually discovered the problem, which actually was easy to solve, and I would like to share this simple solution with others facing this same Frustrating Problem.

The Brake Pedal, when released, causes the Drive Belt Clutch Pulleys to move, and thus Tighten the Drive Belt. When you look under the Tractor, there is a Protective Metal Plate mounted to the Bottom of the Main Tractor Frame which covers the Brake Pedal Shaft and attached Mechanisms. Over time, Grass Builds up in between the Protective Metal Plate and the Tractor's Main Frame Deck, creating a very narrow space between these two pieces of metal.

This area is very difficult to get at, and almost impossible to clean out. Over time, Grass Clippings accumulate in this hidden area, and harden to an almost rock hard clump.

These Hardened Clippings accumulated between the Brake Pedal Mechanism and its fully released metal stop position. Thus, preventing the Brake Pedal Mechanism from moving to its fully engaged position.

I used a long screw driver to break up the compacted grass clippings, and an Air Compressor Blow Gun to break up the packed grass and blow the area clear. It takes awhile to do this cleanup, and is a bit messy, so do it outside, but be patient, and be sure to clean out all the grass that is lodged in this hidden area.

What was happening was that the Packed Grass was so dense that the Brake Pedal could not Fully Release, thus only Partially Engaging the Clutch Pulleys and the Drive Belt, hence the appearance of a loose Drive Belt even when the Brake Pedal was released.

Once the Packed Grass Debris was cleaned out, you will immediately notice the Drive Belt being tighter than it was previously when the Brake Pedal is released, and when you test drive the Tractor you'll find that everything works perfectly, like it was brand new.

Good Luck...
Rayko

Posted on Nov 15, 2010

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My PB19542LT cranks and idles fine. But when you engage the blade it will not rev.


BlAde belt torque IS TOO HIGH It's reducing the engines running speed TO IDLE ALMOST check the blade brakes are releasing fully and the blade bearing are not tight or seem to move stiffly if the blade moved by hand ige ENIGINE OFF SPK LEAD TAKEN OFF PLUGS FOR SAFTEY AND IGNITION OFF TO AVOID ACCIDENTAL HAND CRANK ROUND START HALFWAY ENGAGE THE BLADE SYSTEM SO THE BRAKE SHOES RELEASE FROM THE PULLEYS AND THE DRIVE BELT IS LOSE NOT ENGADEGED FULY TURN THE BLADE AROUND BY HAND IF THECBLADEXOR PULLEY IS HARD TO TURN UNLESS ITS CLOGGEDUP BY GRASS DEPOSITS BUILT UP IN THE DECK OR BEARING HOUSINGS TO FIX IT WILL NEED DISASSEMBLING AND CLEANING OUT OF DEBRIS THEN PUTING BACK TOGETHER IF THE PULLEYS ECT ARE NOT CLOGGED UP THEN THE BEARINGS may need either lubricating with a race bearing grease compound or or if the blade is almost impossible to turn then the blade BEARINGS are worn out And WILL need REPLACING by mechanic the deck ajustment may also be to much and its over TIGHENING The drive BELTS slowing down the engine HOPE THIS HELP WITH THE DIAGNOSIS OF FAULT CHECK THE DRIVE SYSTEM FOR THE BLADES FULY
INCLUDINGVANYVTENTIONING PULLEYS ETC UNDER THE MAIN BODY OF THE MOWER INVOLDED WITH THE BLADE SYSTEM IF ANY PULLEY ENGAEGERSXSEEM TO BE STIFF OR SEEMS TIGHT WHEN THE BELT IS LOSSEND THE PULLY BEARINGS NEED CHECKING OR LUBRICATING ETC THE BELT COULD ALSO HAVE SHRUNK TOO SMALL IF THE MOWERS BEEN STANING STILL A LONG TIME IF THE BELTS HAS DEGRADED AND SHRUNK IT WILL NEED TO BE REPLACED

Jun 01, 2016 | Garden

1 Answer

I have a 52" Husqvarna LGT 2654 riding lawn mower and when I engage the blades, the belt does not turn the pulley system. What could be causing this, the pulley idlers, or the belt?


depending on the age of the machine, there could be several possibilities
1-- belts are not tight enough--- belt tension system is not correct, wrong length belts
2--bearings for the shafts for the blades are rusted up and seized - preventing the blades from moving--- switch the machine off , disengage the belt drive and see if you can turn the blades by hand
3--- if you have an electric pto system to drive the belts to the blades then that system is not getting full power to engage the PTO or the clutch is not working--worn facings
take it to a service dealer and have a proper diagnosis done

May 09, 2016 | Husqvarna Garden

1 Answer

How do I replace the drive belt?


Depending on which model you have, you will have to loosen the belt adjustment by the gear drive mechanism, then slip the belt over the drive pulley. This should allow enough room to get the belt over the blade and off. It might be easier to remove the blade too.
Then install the new belt over blade first then over drive gear box pulley, then tighten adjustment for the belt at the gearbox.

Jun 23, 2015 | Garden

2 Answers

While mowing the drive belt tightner spring broke. I bought a replacement but the blades will not engage. The drive belt has been routed properly. it seems as though the blade's drive shaft will not spin.


Check and see if the shear pin has broken. If the pulleys spin but not the blades then the shear pin in the pulley or shaft has broken.

Mar 30, 2015 | Garden

2 Answers

How to replace mower belt for ZTR cub cadet mower


Changing the Blade Drive Belts:
a.Set the parking brake. Remove ignition key and both spark plug caps.
b.Unscrew the wing nuts from the deck covers and remove both covers.
c.Using a 3/8" socket breaker bar or socket ratchet insert the drive end into the 3/8" square opening in the lower idler arm assembly and push the idler arm counterclockwise. While holding the idler arm back, loosen the blade drive belt from the pulley and slide the belt away from the pulley.
d.Remove tension of the PTO belt by moving the belt tensioning rod. Loosen the belt retaining bolt.
e.Pull the tensioner pulley away from the belt and remove the PTO belt then remove the blade drive belt.
f.Reverse the process to install the belt.
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Jan 08, 2015 | Cub Cadet z-force 60

1 Answer

Poulan 271491


Trina:

Your belt may be the wrong size (diameter too small)... turn the tractor off, and release the cutting lever (as if you wanted to make the blades stop). pull in the belt to see if there is any slack in the belt. If there is no slack, your belt is too small and you will need to buy a larger one. Another thing to check...one of the pulleys may need attention. check to see if the pulleys are clean (no rust or dirt where the belt contacts the pulley). turn the tractor off and see if any of the pulleys wobble when you try to wiggle them with your hand. If one of the spindle pulleys wobbles, (The spindle pulleys are the ones directly above the center of the blades), you will need to replace the wobbly spindle(s). The drive pulley is on the motor driveshaft. check to see that it is clean where the belt contacts it, and the pulley is not warped or damaged. The other pulley is an idler pulley. check to see if it is damaged, warped or dirty.

Aug 31, 2013 | Garden

2 Answers

I need a manual or step by step instructions to change the belt on my Toro Personal Pace mower


The mower should be drained of gas and drain the motor oil before starting procedure.
Disconnect spark plug wire from spark plug.
.
Motor side of the belt:
.
Remove two bolts under the lawn mower body which holds the top cover over the drive belt.
Remove the belt guard that is around the pulley on the crank shaft.
Then work the belt around the blade and off the the drive pulley.
.
While blade is removed, sharpen or replace as necessary.
.
Transmission side of the belt:

.
Remove the "S" clip on handle for speed / traction cable
Remove the plastic "Rear Baffle" two screws on each side on frame in front of rear wheels one screw in the rear

.
With the baffle removed, rotate the drive shaft and transmission to gain access
to the pulley drive belt guard, it is held in place with three screws.
.
Once belt guard is removed, you can easily remove the drive belt

.
Reverse procedure to replace the belt.
.
Lubricate drive Axel bearings, wheel bearings, control cables, as necessary.
Replace all fluids as necessary.
Read more: http://wiki.answers.com/Q/How_do_you_change_drive_belt_on_toro_lawn_mower#ixzz1MMJlZFMZ

May 14, 2011 | Toro Personal Pace CARB Walk Power Mower

1 Answer

The belt that drives the blades for cutting has broken and I need to replace it. I have a Craftsman LTX1000 lawn tractor and I've misplaced the manual. The belt is 96" long. Not sure where to...


With the mower off.
Look on top of the deck.Find the pulleys for the blades then find the engine pulley.There should be one more pulley that is the tension pulley.Watch that pulley as you pull the engage blade lever,while still turned off.The belt will go on the blade pulleys,and the engine pulley,it needs the tension pulley to push it tight.So you need to make sure it goes on the inside of the tension pulley.If you get the belt on and it does not engage,just remove it and replace it on the opposite side of the tension pulley.

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1 Answer

Blades became disengaged -- won't engage


Sometimes the belt can jump off one pulley and cause the problem,follow the belt around all the pulleys and see if it came off one.there may be a belt loosening lever on the lh side of the mower deck, if so unlock it and reroute the belt around the pulley. If you need to replace the belt the manual has a good description on how to do it and should take 30 min with only a couple of tools.

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1 Answer

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First you have to remove the top cover over the belt. If it's still on, work it off the pully. Then you have to remove the blade, blade adapter and cover underneath. Put the new belt on the pulley underneath and push it out the slot to the pulley on top and put everthing back together. Hope that helps.

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