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How to Replace the Fan Belt for My Deere 6310

The John Deere 6310 is a large tractor produced from 1999 until 2002 and built at the John Deere plant in Mannheim, Baden-Wurttemberg, Germany. The 6310 was equipped with a 99-horsepower John Deere four-cylinder diesel engine. The PTO on the 6310 rated at 80 horsepower. The fan belt on the 6310 is commonly referred to as the drive belt. The drive belt is responsible for turning major engine components like the crankshaft, and the water pump. This is not a task for a novice, as it requires someone with prior mechanical experience to replace the drive or fan belt on the 6310.

Things You'll Need

  • Paper
  • Pencil or pen
  • 1/2-inch drive ratchet and socket set
  • Pry bar
  • New drive belt
  • 1/2-inch drive torque wrench
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Instructions

    • 1

      Open the hood of the 6310 and set the bail downward to hold the hood up. Draw a box on a piece of paper representing the front face of the engine. Draw circles on the paper in to represent each of the pulleys on the engine, in their respective positions. Draw a thick line between the pulleys to show the routing of the belt around each pulley.

    • 2

      Loosen the top right (facing the engine) pivot bolt with a 1/2-inch drive ratchet and socket. Remove the top left lock bolt from the tensioner assembly completely. Pivot the tensioner clockwise to remove the tension on the belt, using a pry bar if needed.

    • 3

      Pull the belt off the tensioner pulley, then guide the belt off all of the extraneous pulleys other than the fan belt pulley. Pull the belt upward and over the fan belt pulley and fan assembly. Remove the belt from the engine completely.

    • 4

      Install the new belt over the fan assembly and fan belt pulley first. Route the belt clockwise around all of the pulleys, based on your drawn belt routing diagram. You should end up looping the belt around the upper left of the engine last.

    • 5

      Pry the tensioner into place to align the lock boltholes on the engine and tensioner assembly. Insert the lock bolt in place. Tighten the lock bolt and the pivot bolt to 60 foot-pounds of torque, with a 1/2-inch drive torque wrench and socket.

    • 6

      Visually check the alignment of the belt on all of the pulleys. If the belt is not centered on every pulley, loosen the tensioner assembly and realign the belt. Torque the belt every time you have to loosen the tensioner bolts.

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