1M25653C.3Owner’s ManualElectric Portable Air Compressor(115V/15A or 230V/7.5A, Single Phase/20 gallon, 2 HP)(115V/15A or 230V/7.5A, Single Phase/11 gallon, 1 HP)Instructions for Installation/Set-up, Operation, Maintenance, & StorageNorthStar® Models 25653 and 25654 belt-driven compressors have a single stage 2-cylinder pump, made withheavy-duty cast iron cylinders for long life, and a compact design rated for 135 maximum PSI. NorthStar® Model48578 belt-driven compressor has a single stage 1-cylinder pump, made with heavy-duty cast iron for long life, and acompact design rated for 135 maximum PSI. Their continuous-duty rating ensures long-lasting performance, and itscast iron pump head ensures superior heat dissipation.Read and understand this Owner’s Manual completely before using. Keep this manual for future review. Failure toproperly set up, operate and maintain the compressor in accordance with this manual could result in serious injury ordeath to operator or bystanders.WARNING: SPECIAL HAZARDS Injection Injury: High-pressure air stream can pierce skin and underlying tissues, leading to serious injury and possibleamputation. Such an injection injury can result in blood poisoning and/or severe tissue damage. Flying Debris: High-pressure air stream can cause flying debris and possible surface damage. Not For Breathing Air: NorthStar compressors are NOT designed, intended, or approved for supplying breathing air. Nocompressed air should be used for breathing unless air is treated in accordance with applicable standards. Fire/Explosion: Sparks from air powered tool heads or attachments can ignite fuel or other flammable liquids or vapors inthe vicinity. Exceeding the maximum pressure for air tools or attachments could cause them to explode. Burns: Compressor pump, motor and discharge tubing are hot surfaces that can cause burn injuries. Electric Shock: Operating equipment in wet conditions or where not properly grounded can cause electric shock.Detailed safety information about these hazards appears throughout this manual.Equipment Protection Quick FactsInspect Upon Delivery: FIRST! Inspect for missing or damaged components. See “Initial Set-Up” section for whereto report missing or damaged parts.Add Pump Oil: Pump is NOT shipped with oil. Check the pump oil level before starting. See “Prepare for Operation”section of this Owner’s Manual for capacity and viscosity.Use Mechanical Lifting Equipment: Compressor may be too heavy to handle manually. Use proper liftingequipment for unloading and moving to installation site.Ensure Air Compressor is Electrically Connected Correctly: All wiring, grounding, and electrical connectionsmust be made by a competent electrician. Install according to local and national codes.Run Pump Unloaded for Break-in Period: Before initial use, open drain valve and run compressor for 30 minutesto break in pump parts.Follow Maintenance Schedule: Pump, air filter, and tank require periodic inspection and servicing to provideefficient function and long life. See “Maintenance & Repair” for frequency of servicing.ITEM NUMBER: 25653, 25654, 48578SERIAL NUMBER: _____________