TM 10-5411-231-13&P CARGO BED COVER (CBC) HMMWV, TYPE I 0021 00 CBC SHELL ASSEMBLY   THIS WORK PACKAGE COVERS: Minor Repair, Major Damage Repair, Lifting Ring Repair INITIAL SETUP: Maintenance Level Materials/Parts Direct Support Repair Kit P/N 104276-1 Tools and Special Tools Repair Kit P/N 104276-2 None GENERAL This procedure contains information and instructions to keep CBC shell and door fiberglass components in good working order by repairing damaged fiberglass areas. MINOR REPAIR For cracks of any size or holes that are less than 6 inches in length, width or diameter on any fiberglass part of the CBC, repair by using Repair Kits P/N 104276-1 and 104276-2.  See Tables 0021 00-1 and 0021 00-2 for kit components.  For holes larger than 6 inches in length, width or diameter, see Major Damage Repair. Cracks and Holes.  To repair cracks and holes proceed as follows:          WARNING All chemical materials used in this process are flammable and toxic.  Use only in well ventilated areas.  Avoid prolonged or repeated breathing of the vapors or contact with the skin.  Make repairs to fiberglass parts in a well-ventilated area.  Always wear breathing mask, gloves and eye protection.       NOTE All repairs should be performed on the interior surfaces. a.    Using 36-grit sandpaper, hand-sand an area approximately 3 inches larger in all directions from the damaged area.  This might necessitate removing adjacent components temporarily.          NOTE An active charcoal filter face mask should be worn when sanding the CARC paint on the interior or exterior of CBC.  CARC paint dust is a carcinogenic agent. 0021 00-1