TM 10-3930-659-20 8-1. FRONT UNIVERSAL JOINTS AND SUPPORT BEARING MAINTENANCE (Con't). 3. Remove four bolts (25) and spider bearing assembly (26) from shaft (12). 4. Remove bolt (24), spacer (23), retaining ring (22), and yoke (21) from shaft (12).  Discard retaining ring. c. CLEANING AND INSPECTION WARNING Dry cleaning solvent, P-D-680, Is toxic and flammable.  Always wear protective goggles and gloves, and use only In a well-ventilated area.  Avoid contact with skin, eyes, and clothes, and DO NOT breathe vapors.  DO NOT use near open flame or excessive heat.  The solvent's flash point Is 100°F-138°F (38°C-590C). If  you  become  dizzy  while  using  cleaning  solvent,  Immediately  get  fresh  air and  medical  help.  If  solvent  contacts  eyes,  Immediately  wash  your  eyes  and get medical aid. 1. Clean parts with dry cleaning solvent and allow to dry. 2. Inspect spider bearing assemblies for broken or missing parts.  Replace if parts are broken or missing. 3. Inspect spider bearing assemblies for free movement.  Replace if either assembly does not move freely. 8-4