Loosen the center bolt on the transmission drive belt idler arm, but do not remove it. Holding the top of the center
bolt-head with the combination wrench
while loosening the retaining nut on the underside with a socket wrench is the next task. Push the idler arm forward to align the adjustment bolt holes.
How do you tighten a drive belt on a lawn tractor?
Push the belt keepers on the transaxle pulley down and slide the belt over the transaxle pulley
. Pull the slack from the back of the tractor (transaxle pulley) and slide the belt on to the stationary and clutch idlers. This will increase the tension in the belt and hold it in place.
Why does my drive belt keep coming off my riding mower?
The drive belt may come off a riding mower
because it is damaged or loose
. … If broken or worn, the belt can break while the engine runs, and it can fly off at a great velocity, which is highly dangerous. Check the belt for looseness, cracks, fraying or separation from the rest of the assembly, and replace if necessary.
How do you adjust a belt drive?
While rotating the pedals, loosen the
LEFT adjustment nut in
1/8 counter-clockwise increments until the belt moves towards the center and no longer rubs against the pulley inner rim. If the belt moves past the pulley center, slightly tighten (turn clockwise) the LEFT adjustment nut to recenter the belt.
How do I stop my lawn mower belt from slipping?
Other Damaged Parts
Several other mower parts may cause the drive belt to come off repeatedly. … A properly adjusted mower deck slants slightly forward, making it about 1/8 to 1/4 inch lower in front than in back.
If the angle is too sharp
, then the belt may come off.
How do you adjust a tensioner pulley?
Turn the adjustment bolt on the side, top or bottom of the pulley counterclockwise with the ratchet and socket until the accessory belt
How do you put a belt back on a riding lawn mower?
The drive belt may come off a riding mower
because it is damaged or loose
. … If broken or worn, the belt can break while the engine runs, and it can fly off at a great velocity, which is highly dangerous. Check the belt for looseness, cracks, fraying or separation from the rest of the assembly, and replace if necessary.
How do you adjust a fan belt tension?
The required measure of tension in the serpentine belt is that it
should not deflect more than 1⁄2 inch when twisted either way from the middle
. If twisted more, the belt is loose, and if twisted less, the belt is too tight.
How do you tighten a belt tension?
- Open the hood and locate the adjustment screw that controls tension on the serpentine belt. …
- Place the socket end of the socket wrench over the wing-nut and turn clockwise to apply tension. …
- Check the tension of the belt periodically. …
- Do a secondary check of the belt tension.
How do you tension a chain and belt?
To adjust chain tension,
loosen the bolts
that fasten the motor base to mounting angles on both sides. Tighten take-up bolts until desired chain tension is reached. Do not over-tighten. A good rule of thumb is 1/4′′ deflection in the chain between the sprockets.
How do you know if your lawn mower belt is bad?
- The belt has side wall damage. Mower belt edges should be smooth and even throughout the entire length of the belt. …
- The belt has a glazed or burned sidewall. …
- The belt is cracked.
Why does my belt keep slipping off?
Slipping can be the result of
a loss of belt tension
(or a weak automatic tensioner) or pulley misalignment. When the belt slips off the track, the friction between the belt and accessory drive pulleys causes the belt to overheat. If you hear a high pitched squealing noise, it's probably time for a switch.
Why is my lawn mower belt smoking?
Once a belt has smoked it is on borrowed time. It is
smoking because it is running against something that does not revolve with the belt
. Usual problem is running the belt on the outside of a belt keeper. Some of them are very hard to see like the one at the back of the tranny.
How do you adjust the tensioner?
Turn the adjustment bolt on the side, top or bottom of the pulley counterclockwise with the ratchet and socket until the accessory belt is loose enough to remove. Tighten the tensioner pulley by
turning the adjustment bolt clockwise
with the ratchet and socket until the belt is tight.
How tight should a belt tensioner be?
The required measure of tension in the serpentine belt is that it should
not deflect more than 1⁄2 inch when twisted either way from the middle
. If twisted more, the belt is loose, and if twisted less, the belt is too tight. Either of the positions does not work for the vehicle.
How do you test a belt tensioner?
- Listen for squealing noises within the engine when it is running. …
- Watch the belt and belt tensioner while the engine is running. …
- Turn off the engine. …
- Push down on the middle of the belt while the engine is off and the components are cool enough to touch.
