TB-9-2510-251-13 HMMWV Operator and Field Maintenance, Installation & Parts Add-On-Armor Air Conditioning Download
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2-171 TB 9-2510-251-13 2-2.2 Installation of Air Conditioning Kit to M998 and M998A1 Four-Door with O'Gara Hess Add-on-Armor (Cont’d). a. Install Compressor (Cont’d) (3) V-belts: Disconnect fan clutch hose to remove belts. a. If the vehicle will be upgraded to use a 200 amp alternator and three forward belts are to be used to drive the alternator, one new longer belt will be used for the power steering pump and the air conditioning compressor. Remove the existing power steering belt(s) and replace with new longer belt. b. If only the two forward belts will be used for the alternator, the power steering pump will be driven by one new longer belt. Remove only one power steering belt and install the longer belt on rear most pulley groove. c. Reconnect fan clutch hose. AIR INTAKE DUCT 3 4 1 2 Figure 2-250. Air Intake Duct Removal Figure 2-251. Fuel Lines and Wiring Harness Clamps Removal (2) Compressor Mounting. a. Mark air intake duct at the air filter housing. Remove air intake duct. b. Loosen alternator and power steering pump belts. c. Slip belts off alternator and power steering pump pulleys. (4) Remove clamps (1). Attach fuel line (2), fuel return line (3), and wire harness (4) to engine. Set hardware aside for future use.