TB-9-2510-251-13 HMMWV Operator and Field Maintenance, Installation & Parts Add-On-Armor Air Conditioning Download
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2-158 TB 9-2510-251-13 2-2.1 Installation of Air Conditioning Kit to M998 and M998A1; M1037; M1097 and M1097A1 Two-Door with O’Gara Hess Add-on-Armor (Cont’d). d. Install Refrigerant Hoses CAUTION • When installing hoses, be sure to secure away from hot or moving parts. Failure to comply may result in damage to equipment. • Avoid routing hoses in areas where chafing, punctures, or pinching may occur. Failure to comply may result in damage to equipment. • DO NOT remove caps from hoses until ready to charge air conditioning system. Failure to comply may cause contamination of system and damage to equipment. • Keep all fittings capped until just prior to connecting hoses. Failure to comply may result in damage to equipment. • Keep ends of hoses covered during routing to avoid contamination. Failure to comply may result in damage to equipment. • Before connecting fittings, check to see that O-rings are present and undamaged. Failure to comply may result in damage to equipment. • Lubricate O-rings with mineral oil just prior to connecting fittings to components or inserting fittings into hoses. Failure to comply may result in damage to equipment. NOTE • Route hoses according to the diagram shown. Follow existing routing and tie strap to secure. DO NOT connect any hoses at this time. • Use hydraulic caps or tape closed ends of hoses to prevent debris from entering system during routing procedure. 1 1 Figure 2-236. #8 Hose Figure 2-235. #12 Hose #8 HOSE #12 HOSE (1) Trim three grommets to achieve a snug fit around #12 hose. (2) Install two grommets (1) in holes drilled in evaporator mounting section (inside vehicle). (3) Install one grommet in forward hole drilled in condenser mounting section (outside vehicle). (4) Trim one grommet to achieve a snug fit around #8 hose. (5) Install grommet (2) in rear hole drilled in condenser mounting section (outside vehicle).