Starter/Starter IMPORTANT: Do not clean armature with solvent. Solvent can damage insulation on windings. Use only mineral spirits and a brush. 9. Inspect commutator. Look for roughness, burned bars, or any material which might cause short circuits between bars. If necessary, clean and touch up with 400 grit sandpaper. NEVER use emery cloth. Clean all dust from armature when finished. M37112 -UN-25JAN90 10. Test for grounded windings using an ohmmeter or test light. Touch probes on commutator and armature core. Armature windings are connected in series, so only one commutator bar needs to be checked. If test shows continuity, a winding is grounded and the armature must be replaced.
M98,2060K,19 -19-05NOV85 11. Test for open circuited windings using an ohmmeter or test light. Touch probes on two different commutator bars. If test shows no continuity, there is an open circuit and the armature must be replaced. M37113 -UN-25JAN90 M98,2060K,20 -19-05NOV85 60 9 CTM2 (19APR90) 60-9 16, 18, 20 & 24HP Onan Engines AllTractorManuals.com 130495