Lift the engine cover and remove the spark plug wire.
Remove the belt once you have enough play between the pulleys. Place the new belt on and slide the belt tensioner backwards so that the new belt is completely taut.
Replace the spark plug wire and close the engine cover.
How do you change the drive belt on a John Deere 155?
Step 1: It Isn’t As Bad As It Looks.
Step 2: Remove the Tension Spring.
Step 3: Disconnect the Tie Rods and Remove the Belt From the Motor.
Step 4: Remove the Idler.
Step 5: Remove the Belt From the Tensioner Assembly.
Step 6: Put the New Belt on the Same Way the Old One Came Off.
How do you put a belt on a 54 John Deere deck?
How do you tighten a belt on a John Deere tractor? – Related Questions
To replace this belt, the deck should be off the lawn mower. You’ll crawl underneath and locate the idler pulley(s) and loosen the cap screw at the center of the pulley to allow a wiggling movement in the pulley.
How tight should a mower deck belt be?
Home and Garden Geek adds that you should be able to loop one or two fingers over the same belt when the tractor is off and the belt is “engaged” and pull it gently away from the pullies. This translates to one or two pounds of force. If you need more than two fingers, your deck belt may be too tight.
What happens if mower belt is too tight?
Having the correct belt tension is super important simply because if it’s too loose, it will damage the belt, and having it too tight will damage the pulleys and the belt. This is why it’s not a good idea to use any form of guesswork and why having a deflection gauge is the only accurate method.
How do I know if my mower belt is loose?
Excessive Deck Vibration
There’s no noise, no loss of blade speed and no vibration. But when the deck belt becomes loose, things start to become more irregular, and this can cause vibration in the deck. If you notice this, there’s a good chance that there’s not enough tension on the deck belt.
Why does my John Deere mower belt keep breaking?
If your lawn mower belt keeps breaking it could be due to a number of factors including the quality of the belt itself, damaged pulley bearings, rust or sharp edges on pulley grooves, debris building up inside pulley grooves or a weak tensioner spring.
A lifting belt’s tightness may vary slightly by exercise, however, in general, you should have about a finger width of room between the belt and your torso so it’s tight enough where you feel it around your waist, but are still able to breathe comfortably.
How tight should a V belt be?
Why does my mower deck belt keep coming off?
There are lots of potential reasons for a mower deck belt that keeps coming off. It might be that the belt is damaged or worn, the belt could have stretched, one or more belt keepers could be bent out of place or there could be a damaged pulley or pulley bracket.
How long should a mower deck belt last?
What’s the Expected Lifespan of a Mower Drive Belt? You should have no problem getting 3-4 years out of your lawn mower drive belt. However, you can extend the belt’s lifespan beyond this with the correct treatment and maintenance.
Why does the belt keep coming off?
Belt coming off: Pulley misalignment, belt misalignment on pulley, defective tensioner, or bearing wear in tensioner, idler or driven accessories.