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120 PSI 12V Air Horn Compressor Tank Pump Train Auto Car Truck Boat This 120PSI 12V air compressor and air pump is designed for any high-pressure air horns that require on-board air system. Equipped with built-in temperature switch with great performance. Will automatically shut off when air compressor goes over 80 °C and restart when it gets back down to 70 °C. Operates on a 12V DC power source and pumps about 1 cfm 40 psi. Specifications Pressure Switch Settings: 90 PSI on, 120 PSI off Max Pressure: 120 PSI Power input: DC 12V Max Amp: 18A Air Hose: 5m (16.4') Tank Capacity: 3 Liters Gross Weight: 11.6 lb (5.3 kg) Package Dimensions (L x W x H): 19.3" x 11" x 9.4" (49 x 28 x 24 cm) Package Content 1 X Air Compressor 1 X Fuse Box 4 X Cushions 1 X Sealing Tape 1 X Air Hose 1 X Manual Screws and Gaskets TIPS FOR USING Remove compressor, receiver drier or accumulator, orifice tube or expansion valve. Flush the condenser and evaporator using NON-OIL BASED A/C flush. On expansion valve systems . Drain all the oil from the new compressor and dispose of according to local, state and federal laws. Install half oil charge into the compressor and the remainder throughout the system. Turn compressor shaft 8-10 full revolutions to insure front seal and other internal parts are lubricated. Install new receiver drier or accumulator and new orifice tube or expansion valve. Evacuate the A/C system for a minimum of one hour. After evacuation install half the refrigerant charge and let the system set for 1 minute.. Start engine whit A/C controls on MAX AIR with door and windows open. Add the remaining charge of refrigerant as called for by the manufacturer.