Kia Sorento 2001 General Information Manual page 65

(2) Check continuity between commutator and shaft with ohmmeter. Replace armature if there is continuity.
(3) Place armature on V-blocks, and measure runout with a dial indicator.
if runout is not within specification, repair armature with a lathe or replace armature.
Runout : 0.002in (0.05mm)
Maximum : 0.016in (0.4mm)
(4) Replace armature if diameter or commutator mutator is at, or less than, grind limit.
(5) If commutator surface is dirty, wipe it with a cloth ; if it is rough, repair it with a lathe or fine sandpaper.
Grind limit : 1.22in (31mm)
(6) If depth of mold between segments is at, or less than minmum, replace armature.
Depth : 0.02~0.03in (0.5~0.8mm)
Minimum : 0.008in (0.2mm)