North Star 47501 - User Manual

1
M47500A
Owner’s Manual
Electric Stationary Air Compressor
(230V, single phase/60 gallon, 3 HP and 5 HP)
Instructions for Installation/Set-up, Operation, Maintenance, & Storage
This NorthStar® belt-driven compressor has a single-stage 2-cylinder pump (Model 47500) or single-stage 3-cylinder
pump (Model 47501), made with heavy-duty cast iron cylinders for long life, and a compact design rated for 150
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.
Equipment Protection Quick Facts
Inspect Upon Delivery: FIRST! Inspect for missing or damaged components. See “Initial Set-Up” section for where
to report missing or damaged parts.
Check Pump Oil: Pump is shipped with oil. Check the pump oil level before starting. See “Preparing for Operation”
section of this Owner’s Manual for capacity and viscosity.
Use Mechanical Lifting Equipment: Compressor is shipped on a pallet and is too heavy to handle manually. Use
proper lifting equipment for unloading and moving to installation site.
Install Using a Qualified Electrician: All wiring, grounding, and electrical connections must be made by a qualified
electrician. Install according to local and national codes.
Install a Regulator: We recommend installing a regulator on the compressor at each distribution point to maintain
constant pressure in the outlet hose line and provide reduced pressure appropriate for air tool being used.
Run Pump Unloaded for Break-in Period: Before initial use, open ball 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 Schedule” for frequency of servicing.
ITEM NUMBER: 47500 & 47501
SERIAL NUMBER: _____________

Summary

About Your Air Compressor

Intended Use and Safety

Details applications, personal protection, adult supervision, and avoiding operation under influence.

Supplies and Site Requirements

Lists required supplies and criteria for selecting a suitable installation location.

Specifications

Technical Specifications

Outlines flow output, power requirements, dimensions, and oil capacity for both models.

Component Identification

Compressor Parts Overview

Identifies key components of the air compressor with numbered labels and descriptions.

Safety Information

Hazard Signal Words and Decals

Explains hazard signal word meanings and shows locations of safety decals on the unit.

Specific Hazard Warnings

Details critical safety warnings including breathing air, electrical shock, burns, and corrosion hazards.

Initial Set-Up

Inspection, Assembly, and Location

Covers unpacking, attaching filter/regulator, and selecting a suitable site.

Mounting and Installation

Guides for permanent mounting, distribution piping, and electrical wiring installation.

Operation

Operation Safety and Preparation

Outlines safety rules, pre-operation checks, and preparation steps for safe use.

Start-Up and Usage Procedures

Covers start-up, break-in period, air hose/tool use, and shutdown procedures.

Maintenance & Repair

Maintenance Schedule and Tasks

Provides a summary schedule and detailed instructions for inspections, oil changes, and belt adjustments.

Troubleshooting Common Issues

Lists frequent malfunctions, their causes, and recommended solutions for the compressor.

Parts Lists

Model 47500 Parts and Views

Includes parts lists, exploded views, and kit breakdowns for Model 47500.

Model 47501 Parts and Views

Includes parts lists, exploded views, and kit breakdowns for Model 47501.

Appendix A: Lubricants and Compatibility

Lubricant Selection Guide

Details compatible materials for synthetic oil and recommendations for alternate lubricants.

Limited Warranty

Warranty Coverage and Claims

Explains warranty terms, coverage periods, exclusions, and how to file a claim.

North Star 47501 Specifications

General

Brand	North Star
Model	47501
Category	Air Compressor
Language	English