... 24,DW-30,LUh3b,LU-DN,LUh-DH,2,3LUh-DS,LUT-DM,2,LUh-2,3,4,5,6,7,LUh-3B,LUh ... -DSMLU,2,NU-DH,2,3,NU-SH,2,3,NUh-SH,2 ... rings, commutator never appears scratch, rough, ablation and so on. (2) With a good flow properties and set to change commutation ... to the original manufacturer's specification. Any more than a 2 degree variation in the setting can cause arcing, bar ...