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Deck drive belt comes off when disengaging mower and during normal mowing. i have replaced the belt and it still is coming off. the mower is 2006 model yard machines 46'' cut w/ 3 blades

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  • marklamb1 May 19, 2009

    I'm having the same problem. Could too much tension cause this?

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  • 4 Answers

Need to adjust the tension on the belt.

Posted on May 18, 2009

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Posted on Jan 02, 2017

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I need help putting rear end back together on a 10 hp30 Murray riding lawnmower


Safety and Preparation Serious injury can occur if the engine or mower blades accidentally start while you are working with lawn tractors. To prevent this, drive the Murray lawn tractor onto a flat work surface and disengage the mowing deck cutting blades. Engage the parking brake to keep the mower from moving; chock the wheels with a wooden block or brick. Adjust the mowing deck to the lowest position. Turn off the engine and remove the key from the ignition. While not necessary, you may even wish to disconnect the spark plug wire from the spark plug. Mowing Deck Removal You must remove the mowing deck on a Murray lawn tractor to gain access to the belts. Remove the adjustment rod hairpins, followed by the adjustment rod pins from the front left and right sides of the mowing deck. At the rear on the left and right sides, pull out the retaining hairpins and slide the mowing deck suspension links from the adjuster plates to separate the rear mowing deck from the frame. Remove the blade control rod stud, including the hairpin and washer, from the top of the blade control lever shift linkage at the left rear of the deck. Remove the front hanger rod, including the hairpin and flat washer that hold the rod in place. Loosen the belt guide retaining bolts with a socket wrench and remove the engine stack pulley belt so you can slide the mower deck out from under the tractor Transmission Drive Belt Installation Slide the new transmission drive belt between the engine stack pulley belt guides, over the belt guide plate and under the engine stack pulley. Fit the transmission drive belt around the top engine stack pulley. Push the free end of the transmission drive belt up through the transmission shifter hole in the lawn tractor floorboard. Slip the transmission drive belt loop over the transmission shifter. Pull the transmission drive belt down through the transmission shifter hole. Fit the transmission drive belt around the transmission drive pulley and tighten the transmission drive pulley belt guide retaining bolts to hold it in place. Fit the transmission drive belt flat side around the idler pulley. Slide the idler pulley onto the idler pulley stud while holding the belt in place. Tighten the transmission idler pulley retaining nut with a socket wrench to secure the idler pulley to the idler pulley stud. Mowing Deck Drive Belt Installation Pull back on the right side mowing deck mandrel pulley spring-tensioned belt retainer. Guide the new mowing deck drive belt around the right side mandrel pulley and release the belt retainer. Pull the drive belt spring-tensioned retainer away from the mowing deck idler pulley, guiding the deck drive belt around the idler pulley. Fit the mowing deck drive belt around the left side mandrel pulley and under the rear mowing deck cross link rod between the right and left side mandrel pulley. Slide the mowing deck under the right side lawn tractor frame, reconnecting the deck to the frame in reverse order of removal. Engage and disengage the mower deck while driving the mower to test the belt for proper operation.

Sep 28, 2016 | Murray Garden

1 Answer

Where is the lawn mower belt adjustment? Need to tighten belt.


There are no belt adjusters on most mowers, they gave spring loaded constant adjusters..if the belt is coming off it because the belt is worn..your mower should have one or two adjustable belt protectors around the the motor and deck pulleys they keep the belt from coming off during on and off operations the design is to be set close enough to the pulleys that will not allow the thickness of the belt to pass through...so if the belt is Worn too much or the proctectors are out of adjustment the belt will come off..usually during non mowing or just when engaging the deck or drive..kind of tricky to get at..but can be done yourself...do check them out if they are more then about 1/4-3/8 inch they are out if adjustment..if not the belt is worn out...good luck..

Jun 03, 2015 | Garden

1 Answer

Mower blades won't engage


Did the smoking stop when you disengaged the blades? If so it is most likely your belt that is smoking. Make sure all the blades turn freely by hand to ensure you have not hit anything that may have bent a shaft on one of the blades. If one of the shafts is bent and wont turn FREELY, the belt driving the blades would slip and start smoking as it tried to turn them.

Apr 19, 2015 | Garden

1 Answer

Motion belt was recently replaced and the mower seemed to be operating as intended; mowed the lawn with no problem. The next time I tried to use it I discovered that, as soon as the mower deck is engaged,...


This could well be a miro switch issue, start with the seat switch make sure the connector is fully pushed onto the micro switch, if no better make sure you are fully sat in the seat to activate the switch, if still no better replace the switch.

Jul 31, 2013 | Garden

1 Answer

My mower will die everytime i engage the blades to mow


Check to see if one of your deck spindles isn't seized. Disengage the blades and turn each blade to see if its free. Sounds like either a spindle is seized or your electric clutch on the motor has a problem.

Jul 20, 2013 | Yard Man Yardman Riding Lawn Mower 38in...

1 Answer

My husband was injured and cannot replace the main drive belt for our riding lawnmower. Is there a place to get the schematics of how to put it on? If I have a picture I can do it. Model 917271041,...


Normally the belt diagrams are in the owners manual. Seeing this is a 12 year old machine the diagram stickers are possibly gone, but the drive belt diagram is normally on the bottom side of the foot rest, and the mower belt is on the top of the mow deck. Both are typically on the left side of the tractor as you sit on it. Please vote 4 thumbs up. Thank you.

Here is the link to a typical 42" Craftsman mow deck belt:
http://www.askmehelpdesk.com/attachments/tools-power-equipment/21777d1247094945-craftsman-lawnmower-belt-diagram-aypwobrk.gif

Oct 16, 2010 | Craftsman 42 in. Deck 19.5hp Lawn Tractor

2 Answers

The belt dry rotted and flew off without me being able to remove it myself, now I need to know how to install the new drive belt.


To install the drive belt you will have to remove the drive belt first.
Follow the procedure: ---
Park the tractor on a level surface. Set the parking brake and remove the key from the ignition. Study the belt replacement guide decal located underneath the left foot board for proper belt routing instructions.
Remove the mowing deck by first moving the attachment clutch lever to the disengaged position (toward you). Move the attachment lift lever all the way forward to lower the mower housing to its down position.
Crawl beneath the tractor and roll the drive belt off engine pulley (it hangs directly beneath the engine). Remove small retainer clip that holds the clutch spring to the pulley bolt located at the center of the mowing deck. Remove the large retainer springs (two of them), then slide the belt collar away from the mower housing and off the housing bracket.
Disconnect the anti-sway bar rods from the chassis brackets by removing the retaining cotter pins. Disconnect front links from the mower deck by removing retaining cotter pins. Disconnect the suspension arms from the rear mower deck brackets by removing the two cotter pins.
Move the attachment lift lever all the way to the forward position to raise the mower suspension arms to the full up position. Slide the mower deck out from beneath the tractor.
Crawl beneath the tractor and roll the drive belt off of the stationary idler pulley and the clutching idler pulley. They are both located immediately adjacent to the engine pulley. Be sure the belt is already away from the engine pulley, as well.
Push the drive belt slack toward the rear of tractor. Remove the drive belt from the Trans axle pulley by taking it over the trans axle pulley while compressing the movable belt keepers surrounding it. Remove the old belt from the tractor by pushing it clear of the center span keeper (located beneath the Trans axle pulley).
Install a new drive belt by following the reverse of the instructions for removal. Test the tractor and mower for normal operation.
 Thanks. Keep updated for any more query. You can rate this solution and show your appreciation.
 
 
 

Jul 19, 2010 | Garden

1 Answer

Scotts mower kohler command 25 motor bogs when mowing


Hi..my name is Keith..and it sounds like you have a binding somewhere on your mowing deck..i would check all the spindles .. pulleys and blades..and check the deck belt..it could have jumped a belt guard and it running on the outside of it..but just remember it has pulley brakes to slow the pulleys down when you shut it off..so..engage the deck without the engine running and check for the binding..i hope this has helped..if not..please write me back

Jul 14, 2009 | Garden

4 Answers

Cub cadet model LT1045 belt coming off the pulley for cutting deck?


FINAL SOLUTION TO FIX THE BELT FROM COMING OFF LT1045 WHILE MOWING!


I also had this issue with my LT1045 belt. However, I just figured out how to finally fix / re-engineer my LT1045 Cub Cadet from having issues with the belt coming off of the deck while mowing.

Taking it back into a shop for repairs will not work, the belt will just come off again the first time you mow. I am making a YouTube Video to help others like me with this mower issue and will post a link here soon showing how to fix this design flaw.

It took me about an hour to fix but I've got it working now with no problems, minimum vibrations and belt is running cool now! I've gone for 2 months with no problems now. Check back soon for the link!! I expect I will have the video tutorial finished within a week!!


- Mike


If you for some reason you cant

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