TM  10-3930-638-24&P Section V. CHASSIS MAINTENANCE This section contains the information you’ll need to maintain the front and rear chassis pivot components. It gives you instructions on how to troubleshoot problems, and repair or replace the components that are within the scope of direct support maintenance. Para Troubleshooting Symptom Index . . . . . . . . . . . . 3-25 Chassis Troubleshooting . . . . . . . . . . . . . . . . . . 3-26 Separation of Front and Rear Chassis. . . . . . . . . . 3-27 3-25. TROUBLESHOOTING SYMPTOM INDEX Para/Malfunction  Page CHASSIS Excessive noise at chassis pivot point when turning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26/1 3-190 Excessive play at chassis pivot point when turning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26/2 3-190 3-26. CHASSIS TROUBLESHOOTING MALFUNCTION TEST  OR  INSPECTION CORRECTIVE  ACTION 1. EXCESSIVE NOISE AT CHASSIS PIVOT POINT WHEN TURNING Lubricate  two  grease  fittings  at  chassis  pivot  points  (refer  to  current  lubrication  order). If lubrication does not reduce noise at pivot points, remove and check grease fittings for damage (para 3-27). 2. EXCESSIVE PLAY AT CHASSIS PIVOT POINT WHEN TURNING Carefully observe chassis pivot points while an assistant slowly drives vehicle over rough terrain. If excessive play is observed at chassis pivot points, replace pivot bushing, bearing or pin (para 3-27). 3-190