42 in. Deck 19.5hp Lawn Tractor

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That sounds like the motor has thrown a rod and you will need a new motor. Belt breaking will not cause it to die or not start back.

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A common cause of belt breakage is excessive grass clippings on the deck. Grass clippings can work their way under pulleys and deck covers, causing series problems. Make sure to clean off your deck after every mower use and follow manufacturer recommendations.
1 Answer. Worth Family no it will not. It will not move but should still start. Check for spark and check for fuel.
The serpentine belt is a single, continuous belt that drives multiple devices in your engine, such as the alternator, power steering pump, water pump, and air conditioning compressor. If your serpentine belt breaks, all of these systems will shut down and your vehicle will overheat.
Bad Serpentine Belts Cause Vehicle Performance Issues

The vehicle may frequently overheat. Your air conditioning or power steering may fail to work or not work properly. You may notice your vehicle battery failing to recharge if the alternator is affected by a bad serpentine belt.

A: Your mower has two belts. Both play a role in making the blades turn. The “Deck Belt” goes around the pulleys right above the blades on the deck and then to a double pulley. The “Drive Belt” on your mower goes from the transmission, around an Idler pulley then over to the double pulley I mentioned before.
Misalignment is one of the main causes of timing belt drive failure. Excessive or uneven tooth wear, belt tracking and tensile failure can all be attributed to misalignment. By checking and aligning your shafts and timing pulleys you can increase the life of your timing belts and save yourself lots of downtime.
Under no circumstances can you drive a vehicle without a serpentine belt because the serpentine belt serves the important function of delivering antifreeze to important parts of the engine. The serpentine belt drives the water pump, and without it, there is insufficient coolant flow to maintain the engine temperature.
Squealing Noises

A belt that has excessive wear or damage to it may produce a squealing sound when the engine runs. The squealing sound is most likely due to the belt slipping or a misaligned pulley. The noise is an indication that the belt needs replacing as soon as possible.

Squealing Noises

A belt that has excessive wear or damage to it may produce a squealing sound when the engine runs. The squealing sound is most likely due to the belt slipping or a misaligned pulley. The noise is an indication that the belt needs replacing as soon as possible.

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If the motion drive belt is broke will the lawn tractor still start? or could the engine be blown? my tractor stopped runnig during cutting the lawn it had some clanking noise and then smoke what do you think? it does not start now at all. ty Kim
ANSWER : That sounds like the motor has thrown a rod and you will need a new motor. Belt breaking will not cause it to die or not start back.

Drive belt Have replace drive belt but mower still has no forward movement. Mower is only 2 years old but its already had to have another drive belt installed by the dealer last year. wanted to do it myself but when i install belt theres hardly any tension so mower doesnt move. Checked and rechecked the diagram and is installed correctly. Cant find a tensioner adjustment if it has one.
ANSWER : I don’t have an answer for you, but Do you have a diagram of the Drive Belt?

How do you change a lawnmower drive belt? – Toro LX468 lawn tractor
ANSWER :

Cranks up and runs fine ,then starts cutting out then runs fine and starts cutting out again
ANSWER : I am no pro but my suggestion to you is if you have changed your spark plug recently check the gap on it and make sure it is right and make sure is the right spark plug for it. Also check the oil if it is low the motor as it gets hot will start to sputter or if it has to much oil it will have an air lock and blow you Lhead gasket after a while. Another thing to check is the air filter to make sure it is clean and check the timing with this if you don’t trust your self ask an repair expert for your brand of mower.

LAWN MOWER WILL START , PTO WILL INGAGE, BUT WHEN PUT INTO GEAR MOWER WILL NOT MOVE FOWARD OR REVERSE WHEN LET OFF BREAK / CLUTCH ?
ANSWER : Check your drive belt

Drive belt pattern – Husqvarna Lawn Tractor – 54in. Deck, 26 HP, Model# LGT2654
ANSWER : Go on the web to www.milacalawn.com/partsasp they have the factory diagrams for any parts you may need for your Husqvarna tractor and a belt diagram for the deck… Hope this helps…. ;-D

Fitting new drive blet
ANSWER : Just loosen the adjuster and when it loose pull-out the loosen belt and replace with the new one and retight the adjuster at exact belt tension

Need to replace drive belt.Never replaced. 42′ Craftsman riding lawn mower. How difficult is this. How do you access rear drive pully
ANSWER : Take a look at how the belt is installed. Then you will have to remove the mower deck and belt from the pulley on the engine. There is probably something by the engine pulley that you will have to remove so the belt will come off. It might be a shoulder bold or a rod with a bolt holding it on. Same with the rear pulley. Then you just have to put the belt on one pulley and watch your fingers so you don’t pinch them and turn the other pulley and the belt should go on. reinstall any bolts you removed and install the deck.