Starter/Starter 13. To replace negative brush, cut off worn brush and install new one using a soldering gun and 60-40 rosin core solder. Newly installed wire should be approximately same length as the original. M37140 -UN-29AUG88 M98,2060K,43 -19-05NOV85 14. Remove field coil. IMPORTANT: Do not clean starter parts with solvent. Solvent can damage insulation on windings. Use only mineral spirits and a brush or wipe clean with a cloth. M37126 -UN-25JAN90 Clean and inspect field coil. Check for bare wires or broken insulation that may cause grounding. M98,2060K,44 -19-05NOV85 15. Test for grounded field winding using an ohmmeter or test light.
Touch one probe of tester to field coil brush and other probe to field frame. Be sure the brush lead is not touching the frame. If there is continuity, the coil is grounded and the field frame assembly must be replaced. M36757 -UN-29AUG88 M98,2060K,45 -19-05NOV85 CTM2 (19APR90) 60-18 16, 18, 20 & 24HP Onan Engines AllTractorManuals.com 130495 16. Test for open field coil by touching a probe to each field coil brush. If there is no continuity, the field coil is open and the field frame assembly must be replaced. -UN-29AUG88 M36758 M98,2060K,46 -19-05NOV85 60 18