TB-9-2510-251-13 HMMWV Operator and Field Maintenance, Installation & Parts Add-On-Armor Air Conditioning Download
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2-199 TB 9-2510-251-13 14 12 16 13 15 10 8 11 9 1 2-2.2 Installation of Air Conditioning Kit to M998 and M998A1 Four-Door with O'Gara Hess Add-on-Armor (Cont’d). g. Air Distribution Ducting (Cont’d) Figure 2-287. Flex Hose Figure 2-288. B-Pillar Clamps (2) Cut enough flex hose (9) to connect elbow (1) and elbow (8). (3) Pre-bend band clamp and flex hose into 2.5 inch square. (4) Attach flex hose (9) to elbow (1) and elbow (8) with band clamp (10) and band clamp (11). (5) When air delivery is acceptable, apply a generous quantity of PVC cement (item 3, Appendix D) to the mating surfaces and secure with screws. (6) Four-door vehicles with ring turret only: a. Pre-bend band clamps and flex hose into 2.5 inch square. b. Attach flex hose (12) to plenum (13) with band clamps (14). Do not overtighten. c. Cut two eight inch sections of square ducting. d. Attach 90° elbows (15) with louvers to one end of each eight inch section. e. Apply a generous quantity of PVC cement (item 3, Appendix D) to the mating surfaces and secure with screws. f. Attach three inch flex hose (12) to end of duct. g. Secure duct to clamps with screws. h. Attach ducts with louvers in desired locations with b-pillar clamps (16) and screws.