280C AIR COMPRESSOR KIT PART NO. 28021 IMPORTANT: It is essential that you and any other operator of this product read and understand the contents of this manual before installing and using this product.
80C Air Compressor Kit IMPORTANT SAFETY INSTRUCTIONS CAUTION - To reduce risk of electrical shock or electrocution: - Do not disassemble. Do not attempt repairs or modifications. Refer to qualified service agencies for all service and repairs. - Do not use this product in an area where it can fall or be pulled into water or other liquid. - Do not reach for this product if it has fallen into liquid. - Use this compressor with 12-volt DC systems only.
280C Air Compressor Kit MOUNTING AND WIRING 1. Disconnect ground cable from vehicle’s battery. 2. Temporarily position the air compressor in the location where it will be mounted. 3. Route ground wire to the negative post of the battery or to an appropriate grounding point and cut ground wire to length as needed. 4. Mount air compressor with the four sets of 13/64” (5 mm) bolts, nuts, washers, and locking washers provided. (See Fig. 2 for Mounting Instructions) Use of thread sealant is recommended. 5.
280C Air Compressor Kit (Fig. 2) Compressor B Mounting Hardware C (Fig. 3) Leader Hose Bracket B. Mounting Bolt C. Flat Washer D. Locking Washer E. Nut H. Vibration Isolator I. Hose Clamp J. Clamp Release Tab K. Self Anchoring Pin H C D E I J K OPERATING INSTRUCTIONS 1. IMPORTANT: Always operate the compressor at or below the MAXIMUM PRESSURE RATING of the compressor. Please refer to Application & Specifications Sections of this manual for details. 2.
280C Air Compressor Kit MAINTENANCE & REPAIRS 1. Periodically check all electrical and fitting connections. Clean and tighten as needed. 2. Periodically check all mounting screws. Tighten as needed. 3. Replace air filter element periodically. Replacement frequency depends on operating frequency and operating environment. For frequent use in dusty environments, we recommend that you replace air filter element at least once a month. 4.
280C Air Compressor Kit COMPRESSOR APPLICATION GUIDE To ensure that you get the highest level of satisfaction from your compressor performance, refer to information below: VIAIR COMPRESSOR REFERENCE CHART COMPRESSOR SERIES DUTY CYCLE (100 PSI @ 72°F) 090 SERIES 9% 092 SERIES 9% 095 SERIES 9% 097 SERIES 10% 098 SERIES 10% 100 SERIES 15% 250 IG SERIES 100% 275 SERIES 25% 280 SERIES 30% 325 SERIES 33% 330 IG SERIES 100% 350 SERIES 100% 380 SERIES 100% *55% 400 SERIES 33% 420 SERIES 33% 444 SERIES 100% *5
280C Air Compressor Kit TROUBLESHOOTING GUIDE: PROBLEM: POSSIBLE CAUSE(S) CORRECTIVE ACTION Tank pressure drops when 1. Loose drain cock compressor(s) shut off 2. Check valve leaking 3. Loose connections 1. Tighten drain cock 2. Replace check valve or compressor 3. Check all connections with soap and water solution and tighten Compressor runs continuously and air flow lower than normal 1. Excessive air usage 2. Loose connections 3. Worn piston ring or inlet valve. 4. Clogged air filter element 1.
280C Air Compressor Kit AMERICAN WIRE GAUGE GUIDE 12-VOLT: Amp Draw Length of wire from battery to compressor (in feet) 5 10 15 20 25 30 40 50 60 5 16 16 16 14 14 12 12 10 10 10 16 14 12 10 10 10 8 6 6 15 16 12 10 10 8 8 6 6 4 20 14 10 10 8 6 6 6 4 4 SINGLE “C” MODEL COMPRESSOR WIRING DIAGRAM Wiring Diagram: (Fuse Not Included) 12V 40A Relay 87 30 85 86 Fuse - + Battery To Keyed Power Source Pressure Switch LIMITED WARRANTY: 15 Edelman VIAIR Corporation warrants this product, when properly
