Table of Contents
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(115V/15A or 230V/7.5A, Single Phase/20 gallon, 2 HP)
Instructions for Installation/Set-up, Operation, Maintenance, & Storage
These NorthStar® belt-driven compressors have a single stage 2-cylinder pump, made with heavy-duty cast iron
cylinders for long life, and a compact design rated for 135 maximum PSI. Its continuous-duty rating ensures long-
lasting performance, and its cast iron pump head ensures superior heat dissipation.
Read and understand this Owner's Manual completely before using. Keep this manual for future review. Failure to
properly set up, operate and maintain the compressor in accordance with this manual could result in serious injury or
death to operator or bystanders.
WARNING: SPECIAL HAZARDS
Injection Injury: High-pressure air stream can pierce skin and underlying tissues, leading to serious injury and possible
amputation. 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. No
compressed 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 in
the 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.
Inspect Upon Delivery: FIRST! Inspect for missing or damaged components. See "Initial Set-Up" section for where
to 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 lifting
equipment for unloading and moving to installation site.
Ensure Air Compressor is Electrically Connected Correctly: All wiring, grounding, and electrical connections
must 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 minutes
to break in pump parts.
Follow Maintenance Schedule: Pump, air filter, and tank require periodic inspection and servicing to provide
efficient function and long life. See "Maintenance & Repair" for frequency of servicing.
Owner's Manual
Electric Portable Air Compressor
Equipment Protection Quick Facts
M25653A
ITEM NUMBER: 25653 & 25654
SERIAL NUMBER: _____________
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Table of Contents
Related Manuals for NorthStar 25654
Summary of Contents for NorthStar 25654
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Page 1: Equipment Protection Quick Facts
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. No compressed air should be used for breathing unless air is treated in accordance with applicable standards. -
Page 2: Table Of Contents
Parts Explosions – Model 25653 Rev A ........................16 Parts List – Model 25653 Rev A ..........................17 Parts Explosions – Model 25654 Rev A ........................18 Parts List – Model 25654 Rev A ..........................19 788876 Pump Explosion ............................20 788876 Pump Parts List ............................ - Page 3 Appendix A: Lubricants and Compatibility ......................22 Alternate Lubricants................................22 Limited Warranty ............................... 23...
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Page 4: About Your Air Compressor
About Your Air Compressor Thank you for purchasing a NorthStar air compressor! Adult Control Only. Only trained adults should set up It is designed for long life, dependability, and top and operate the air compressor. Do not let children performance. -
Page 5: Specifications
Specifications MODEL Model # 25653 25654 FLOW OUTPUT Max. Pressure Rating 135 PSI 135 PSI 5.4 CFM @100 PSI 5.4 CFM @100 PSI 5.5 CFM @ 90 PSI Volume Rating 5.5 CFM @ 90 PSI 7.1 CFM @ 40 PSI 7.1 CFM @ 40 PSI... -
Page 6: Safety Signal Words
Safety Signal Words Hazard Signal Word Definitions This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. DANGER (red) indicates a hazardous situation, which if DANGER not avoided, will result in death or serious injury. -
Page 7: Initial Set-Up
Model 25654 Only Tank Wheel Bolt Tank Wheel Qty 2 Qty 2 Model 25653 & 25654 Model 25653 & 25654 Figure 3 Rubber Pad Set (Includes) 1. Insert the handle from the grip set into the mounting Rubber Foot – Qty 2 structure. -
Page 8: Step 3. Select Suitable Location
Step 3. Select Suitable Location Electrical: MUST be connected to a 115V/230 Volt, single- WARNING: Lifting hazard phase outlet having operating capacity of 15 The compressor is heavy. Ensure that proper lifting amps on 115V or 7.5 amps on 230V. equipment is available to unload and move compressor Wiring: to installation site. -
Page 9: Operation
Operation Follow Operation Safety Rules WARNING: Entanglement hazard Before starting the compressor, review the safety rules Do NOT operate with protective covers or guards removed. Beneath these covers are high speed moving found below and throughout the manual. components, which can entangle the operator or WARNING bystanders. -
Page 10: Proper Air Hose And Tool Use
Start-Up Procedures WARNING: Overpressurization hazard NEVER over-pressurize the receiver tank or air tools CAUTION: Break-in period beyond nameplate capacity. Exceeding the pressure Before initial use, open the drain valve and run the rating could cause them to explode or fly apart. compressor without air tools attached and through open Compressor - Tool Requirements air line for 30 minutes to break-in pump parts. -
Page 11: Using Compressor For Spraying
Shutdown Coupler Tool Procedure When you are finished using the compressor: 1. Move the pressure switch to the OFF position. 2. Turn regulator counter clockwise to close. Collar Quick Disconnect 3. Unplug the power cord. Socket 4. Operate tools briefly to release live pressure Figure 6a 5. -
Page 12: Maintenance & Repair
Maintenance & Repair WARNING: Maintenance hazards ALWAYS disconnect, lock out and tag the main power supply and then release air pressure from the receiver tank before cleaning, adjusting, or servicing the compressor. Make sure all guards and shields are replaced before re-starting. Maintenance Schedule Summary Item Frequency... -
Page 13: Change Pump Oil
Change Pump Oil Belts will stretch from normal use. When properly adjusted, a 5 lb. force applied to the belt between the WARNING: Burn hazard motor pulley and the pump will deflect the belt about ½”. Never open oil fill port while compressor is running. Hot oil can spray over face and body. -
Page 14: Cylinder Head Bolt Torque Specification
Cylinder Head Bolt Torque Specification The recommended torque to tighten cylinder head bolts is 9~11 ft.-lbs. Bolts should be tightened according to the following sequence: 1-4-2-3-1. (Figure 10) Figure 10 Contact NorthStar Product Support at 1-800-270-0810 For any questions, problems, or parts orders. -
Page 15: Troubleshooting
Troubleshooting This section provides a list of the more frequently encountered compressor malfunctions, their causes and corrective actions. Some corrective actions can be performed by the operator or maintenance personnel, but others may require assistance of a qualified electrician or Service Center. PROBLEM POSSIBLE CAUSE Motor does not turn. -
Page 16: Parts Explosions - Model 25653 Rev A
Parts Explosions – Model 25653 Rev A Pump not shown on this parts explosion... -
Page 17: Parts List - Model 25653 Rev A
Parts List – Model 25653 Rev A Ref# Part# Description Ref# Part# Description Air Tank 788894 Motor 788886 Drain Valve 788895 Motor Feet Set Bolt Tank Wheel Bolt Motor Pulley Kit # 1 Kit # 6 Tank Wheel Bolt Kit # 2 Rubber Pad Set 788897 V-Belt... -
Page 18: Parts Explosions - Model 25654 Rev A
Parts Explosions – Model 25654 Rev A Pump not shown on this parts explosion... -
Page 19: Parts List - Model 25654 Rev A
Parts List – Model 25654 Rev A Ref# Part# Description Ref# Part# Description Air Tank 788894 Motor 788886 Drain Valve 788895 Motor Feet Set Bolt Tank Wheel Bolt Motor Pulley Kit # 1 Kit # 2 Tank Wheel Bolt Kit # 4... -
Page 20: 788876 Pump Explosion
788876 Pump Explosion Wing nut for # 28 not shown... -
Page 21: 788876 Pump Parts List
788876 Pump Parts List Ref# Part# Description Kit # 788877 Cylinder head Allen bolt set In.& Ex. valve assembly Double head screw set Cylinder Cylinder gasket Kit # 1 & Kit # 2 Piston ring set Kit # 1 Piston set Rod set Crankcase 788879... -
Page 22: Alternate Lubricants
Heavy-duty Viton®, Teflon®, Epoxy Neoprene, Natural operating conditions require heavier viscosities. (Glass Filled), Oil Rubber, SBR Rubber, Refer specific operating conditions to NorthStar Product Resistant Alkyd, Acrylic Paint, Lacquer, Support at 1-800-270-0810. Fluorosilicone, Varnish, Polystyrene,... -
Page 23: Limited Warranty
Transportation costs to and from service center is the responsibility of the customer. In addition to the normal warranty, NorthStar shall warrant any normal wear item from defects in material or workmanship for a period of 90 days from the date of purchase by user. Normal wear items include, but are not limited to, belts and filter elements. - Page 24 Assembled by Northern Tool & Equipment Company, Inc. Burnsville, MN 55306 NorthernTool.com...