If your John Deere riding mower is not cutting the grass properly, has run out of speed or is acting strangely then the likely probability is that the mower deck belt has broken or become too stretched out. You will obviously consider whether to purchase a brand new mower for your garden or yard, or to replace the mower deck belt yourself. This will save you considerable money a mechanic would charge for the repair. Replacing the belt in this way by your own fair hands can easily be done in your own yard.
The first thing you need to do is shut off the power to the mower, then pull the deck height lever to the highest setting. Then, fit the appropriate sized wrench to the three pins that are screwed into the frame under the engine surface, next to the pulley on the engine crankshaft. These pins in essence prevent the belt from slipping from the pulley and falling underneath the engine. You need to remove the pins and slip the belt off the pulley accordingly, establishing the deck height lever to the lowest setting. The next step is to unscrew the four bolts that hold each deck pulley shroud on top of the mower deck; again the appropriate sized wrench will be needed. Finally you should be able to remove the old belt and simply replace it with the new one.
The first thing you need to do is shut off the power to the mower, then pull the deck height lever to the highest setting. Then, fit the appropriate sized wrench to the three pins that are screwed into the frame under the engine surface, next to the pulley on the engine crankshaft. These pins in essence prevent the belt from slipping from the pulley and falling underneath the engine. You need to remove the pins and slip the belt off the pulley accordingly, establishing the deck height lever to the lowest setting. The next step is to unscrew the four bolts that hold each deck pulley shroud on top of the mower deck; again the appropriate sized wrench will be needed. Finally you should be able to remove the old belt and simply replace it with the new one.
