Portable Stump Grinders

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ALPINE MACHINE
Phone : (360) 357-5116

V-belt Replacement
Follow these steps to replace the v-belt on the Alpine Magnum Stump Grinder.

  1. Remove the clutch cover that has the Alpine decal.
  2. Remove the guard with the yellow caution decal.
  3. Remove the side cover with the Magnum decal. 4 bolts hold it on the machine
  4. Remove the shank cover which is a thin piece of sheet metal with 8 small screws holding it in place. You Must apply heat to the small screws or they will not come out, they were assembled with loctite. A small propane torch will work for this procedure. If you strip the socket area so you can not turn the screw, you will have to use a hacksaw to saw a slot in the head of the screw then use a slotted screw driver to remove them. Be sure you do not saw any deeper than the depth of the hex hole or the head of the screw will break off.
  5. Remove the 3 inch diameter aluminum bearing cover that has 4 small screws in it using a 9/64 hex wrench, . You do not need heat for removing these screws or any other screws other than the 8 shank cover screws previously mentioned.
  6. Under the 3" aluminum cap is a bolt that needs to be removed using a 3/4" or 19mm wrench.
  7. Take out the 7 screws holding the right side bearing housing using a 3/16 hex wrench.
  8. Use 2 straight medium sized screw drivers to pry up the bearing housing off of a 1/4" dowel pin located at the 9:00 position.
  9. After lifting the bearing housing off, you will see how to remove the belt.
  10. When you go to assemble after replacing the belt make sure that you did not dent any of the parts where the mating surfaces go together, if they are dented just use a file to make the surface flat then reassemble in reverse order.