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TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download

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TM 9-2320-280-34 22-9. FIBERGLASS REPAR a. General The M998 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, MIL-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 “spiderweb”-like pattern due to hood flexing. No repair is required. 1. Examine cracks to determine if they are surface only, or are deep brakes 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: hinges (3), latches (2), or hood stop (1) areas, repair immediately. 4. If total penetration cracks exist in non-critical areas, do not repair until size is greater than three inches. 5. If severe breaks develop in one area, remove fragmented material and use repair procedure for holes. 22-16