Troubleshooting the FBP UNS
E. Troubleshooting:
Problem: The rotor or stator break when removing it from the outer mold.
Cause: 1) Too little cement with the sand
2) Sand may have been dirty
3) Part was removed from the mold too early.
Solution: 1) Break concrete apart with hammer, clean metal parts with wire brush and reuse.
Problem: When turning the handle while trying to shell nuts, the handle and the locking nut turn together,
while the rotor does not.
Cause: The locking nut is not tightened enough.
Solution: Tighten the locking nut securely, hitting with a small block of wood or a rock if necessary.
Problem: When removing the outer stator mold, the bolts on the narrow end of the mold do not pass easily
through the mold.
Cause: The "S" shape of the long stator rods went in backwards. Rather than the bolts sticking out
perpendicular to the top of the mold, they stuck out at an angle that does not allow the mold to be
easily removed.
Solution: Do the best you can to remove the mold. This may end up making the holes in the stator mold
bigger as the bolts are forced through the fiberglass, but it should still give you years of good
service.
Problem: The nuts you are shelling are either very large or very small, and the rotor cannot be adjusted
enough down or up to shell the nuts correctly.
Cause: Rotor needs to be raised or lowered more that the existing thread count on the top of the rotor rod
will allow.
Solution: Additional adjustments of the rotor height can be made by
1) adding or subtracting the big washers below the handle.
2) Loosening the "U" bolt nuts that secure the top pipe to the top bracket, move top pipe
up or down as needed. Retighten "U" bolt bolts.
