TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 2 Download
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TM 9-2320-387-24-2  33-9. FIBERGLASS REPAIR  a. General. The hood and engine access cover are made of fiberglass (sheet molding compound). Cracks,  splits, or holes may be repaired with a glass-reinforced plastic laminate repair kit, ML-R-19907C, NSN  2090-00-372-6064.  b. Inspection.  NOTE  Hood surface has a thin layer of gel coat that may appear cracked  in a spider-web-like pattern due to hood flexing. No repair is  required.  1. Examine cracks to determine if they are on the surface only, or are deep breaks into material  thickness.  2. If filler material chips off at bonding flanges, appearing as cracked but not broken through, area  need not be repaired.  3. If a total penetration crack greater than one inch exists in critical areas: such as hinges (31,  latches (21, or hood stop (1) areas, repair immediately.  4.  inches.  If total penetration cracks exist in non-critical areas, do not repair until size is greater than three  5. If severe breaks develop in one area, remove fragmented material and use repair procedure  for holes.  33-16