Bilt that runs off of main drive pulley keep, to deck comes off
This bilt runs off of the main drive pulley it ingages the deck when the control arm is moved forward. the bilt frays and come off often is the pulley ajustment off or what please help these bilt are not cheap, thank you. it's a troy-bilt Horse V-twin 21hp 46 inch cut.
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Re: bilt that runs off of main drive pulley keep, to deck...
If you have an owners manual, verify correct routing of the belt. If this is correct, check all the pulleys with the belt off to ensure they turn freely. Recommend not mowing with the deck in a very low position also. This creates an awkward alingment. Let me know.
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? 3:44 www.youtube.com/watch?v=io2aCjM0o8Y
Sep 30, 2011 - Uploaded by askanthonynow
After new bearings were placed into an idler pulley, it is being installed on the deck of the mower. This is the .
How to Replace the Deck Idler Pulley on a Troy-Bilt Pony ...? 8:04www.youtube.com/watch?v=HY9AuNe5DWAAug 13, 2013 - Uploaded by eReplacementParts.comThis tutorial will show you how to remove and install the idler(4.25") pulley on a Troy-Bilt Pony lawn tractor/riding mower. Helpful items include ...How to Fix the Idler Spring on a Zero-Turn Mower ' Home ...
IF YOUR MOWER COMES EITHER TRANSMISION AMD DRIVE BELT OR ONE EXTENDED BELT, YOU HAVE TO LOSE THE CUTTING DECK AND DISMOUNT THE OLD BELT, TO REPLACE THE NEW ONE FOLLOW THE DRAWING NORMALLY PRINTED ONYSTHE DECK ADJUST TENSION WHEN YOU MOUNT BACK THE CUTTING DECKALOWING THE BELT TO BE LOOSE A LITTLE, BY PUSHING THE ONE PART OF THE BELT IN BETWEEN PULLEYS FOR A ONE INCH OF PLAY AND YOU ARE SET.
Instructions1 Place the riding mower on a level surface and set the emergency brake. Open the engine or tilt the seat back to gain access to the battery. Disconnect the negative battery cable with a socket. Turn off the main fuel petcock valve from the tank to the carburetor. Set the attachment clutch in the "Disengage" position. Set the motion control lever to neutral. Place the mower deck lift lever in its lowest position to drop the deck. 2 Pull the belt against the engine drive pulley, then pull upward on it and slip it off the pulley. Unclasp the small clutch retainer spring from the pulley bolt. Detach the big retaining spring and then slide the collar sleeve off. Shove the housing guide out from the br 3 Pull the retainer springs off that hold the rear suspension arms to the rear mower deck bracket. Disconnect the front link arms that hold the front of the mower deck to the chassis. Pull the lift lever to put the suspension arms at full height. 4 Slide the mower deck out from the bottom of the tractor. Tilt the mower deck and prop it up with wood blocks. Use a stiff cleaning brush to remove all mud, twigs and grass clumps. Wipe the top of the deck and undercarriage with a rag. 5 Un-thread the belt from around the idler and mandrel pulley. Place the new belt around the mandrel pulley and idler pulley first, then stretch it up to the drive pulley and loop it into the pulley grooves. Make sure the V part of the belt rests inside the pulley. 6 Use the lever to raise the suspension arms on the deck. Push the deck back under the tractor. Lower the suspension arms and replace all the retaining springs in reverse or the order in which you removed them. Slide the sleeve back into position and secure it with the spring. Reattach the spring to the anti-sway bar. Shove the housing guide back into its bracket. 7 Raise the mower deck with the lever. Reconnect the negative battery cable with a socket. Turn on the fuel petcock valve. Start the engine and engage the main drive lever. Test-drive.
on some cubs there are two holes for the spring loaded pulley adjustment arm. take the deck back off and look at the spring loaded pulley arm mechanism, if theres two holes , take the bolt out that holds the adjustment arm down and move it to the other hole. theres two holes for the spring too, try the other hole, make sure your spring isnt upside down. putting the spring back on is difficult. connect it to the front first then come around the back with a spare piece of rope, put it on the spring and pull on the rope to get the spring back on the mower deck. use eye protection and be careful.
well i would take a long look at the spring which holds the tension pulley in place. if it is weak, or not connected correctly, there will be inadequate tension and the belt can come off. I would also take a look at whatever fasteners keep the deck in place as if it is not kept to the rear, there again will be too much play in the deck belt.
Yes, there is an idler arm with a pulley that presses either inward or outward against the belt to tension it. In some JD mowers, the arm is tensioned by pulling on a long metal rod that latches near the edge of the mower deck, but without the model number I can't be more precise about that. Just look for that extra pulley and arm it's mounted on -- you'll see a tension spring, and you should also see a way to pull the arm away from the spring to place it under tension. Good luck!