You can get your FMC/John Bean 2500/4100 or 5800 repaired @ ADER inc.
The sensor on the FMC 4100 wheel balancer is typically located at the base of the machine, near the wheel assembly. It is designed to detect the imbalance in the wheel by measuring vibrations as the wheel rotates. This information is then used to determine the necessary weight placements for proper balancing. For specific details, refer to the user manual or manufacturer's documentation.
Directly, it means one of the force sensors is reading low. I think the left one. But, on my 4100 balancer, i had an issue with the angular position sensor (the encoder wheel) which for some reason gave me the same error.
http://www.snaponequipment.com/common/op-manuals/jb/past-products/4100_om.pdf
Operators Manual: http://www.snaponequipment.com/common/op-manuals/jb/past-products/4100_om.pdf
8% of 4100 = 8% * 4100 = 0.08 * 4100 = 328
4100.00 minus 40 percent = 246040% off of 4100= 4100 - (40% * 4100 )= 4100 - (0.40 * 4100 )= 4100 - 1640= 2460
4100
4100
4100 lbs dry weight. I own it.
75% of 4100 = 3075
4100
125 of 4100 is 512500.