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AIR COMPRESSOR
4 GALLON • OIL-FREE • 120 PSI
OWNER'S MANUAL
ITEM# 550
ITEM# 555
ENGLISH
ITEM# 550 & ITEM# 555
REV 08.11.2021

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Summary of Contents for Forney 550

  • Page 1 AIR COMPRESSOR 4 GALLON • OIL-FREE • 120 PSI OWNER’S MANUAL ITEM# 550 ITEM# 555 ENGLISH ITEM# 550 & ITEM# 555 REV 08.11.2021...
  • Page 2 Above all, our employees will provide the same respect and caring attitude within the organization as they are expected to share with every Forney customer. Our goal will be to exceed our customers’ expectations through empowered people, guided by shared values and commitments.
  • Page 3: Warranty

    In fact, the majority of issues can be fixed over the phone! Please be near your machine when you call, so the Forney technician can guide you.
  • Page 4: Table Of Contents

    Table of Contents WARRANTY ..................................3 TABLE OF CONTENTS ................................4 SYMBOLS LEGEND ................................5 SAFETY SUMMARY ................................5 CALIFORNIA PROPOSITION 65 WARNING ........................5 FIRE PREVENTION ................................5 ELECTRIC SHOCK ................................6 NOISE ...................................6 RESPIRATORY .................................6 PRESSURE VESSELS ................................6 FLYING PARTICLES ................................7 COMPRESSOR TEMPERATURE ............................7 ADDITIONAL SAFETY INFORMATION ..........................7 BEFORE YOU BEGIN ................................8 AIR COMPRESSOR SPECIFICATIONS ..........................8 AIR COMPRESSOR COMPONENTS ..........................10...
  • Page 5: Symbols Legend

    BEFORE INSTALLING, OPERATING OR CARRYING OUT MAINTENANCE ON THE MACHINE, READ THE CONTENTS OF THIS MANUAL CAREFULLY, PAYING PARTICULAR ATTENTION TO THE SAFETY RULES AND HAZARDS. If these instructions are not clear, please contact your Forney Authorized Dealer or Forney Customer Service 1-800-521-6038. Symbols Legend SYMBOL...
  • Page 6: Electric Shock

    NEVER attempt to repair any electronic device without the proper training or guidance from a licensed professional. Any repairs to your air compressor should be performed by a Forney Warranty Service Center. To find Warranty Service Centers in your area, please visit www.forneyind.com.
  • Page 7: Additional Safety Information

    Additional Safety Information LIFTING HEAVY OBJECTS CAN CAUSE SERIOUS INJURY! Improper heavy lifting techniques can lead to extreme long-term injury. Your air compressor (4.5CFM compressor only) is too heavy to be safely lifted by one person. ALWAYS get help when lifting your air compressor. ALWAYS observe proper heavy lifting techniques. MOVING PARTS CAN CAUSE SERIOUS INJURY! Moving or rotating parts (like the fans in your air compressor) can cause serious injury and soft tissue damage.
  • Page 8: Before You Begin

    ETL Certified Weight 48.5 lbs 70.5 lbs Length 25” 25” Width 15” 15” Height 15” 15” 2.5 CFM Air Compressor 4.5 CFM Air Compressor SC020-015 (Forney 555) SC012-015 (Forney 550) 120Vac, 60Hz, 7.1A, 4Gal 120Vac, 60Hz, 12.5A, 4Gal 90-120PSI 90-120PSI WWW.FORNEYIND.COM...
  • Page 9 4.5 CFM Model 2.5 CFM Model Air Compressor Components A) On/Off Switch K) 4 Gallon Air Tank B) Safety Valve L) Plasma Cutter Rack (4.5CFM) C) Check Valve M) Compressor Cart Interface Pegs D) Air Filter / Moisture Separator N) Power Cable Wrap E) Tank Pressure Gauge O) Rubber Feet F) Output Pressure Regulator...
  • Page 10: Air Compressor Components

    For normal use, the Rubber Feet should be installed. For use with the Forney Compressor Cart, remove the Rubber Feet and replace them with the Cart Interface Pegs (SEE IMAGES ON NEXT PAGE). For more information on the Forney Compressor Cart, please visit www.forneyind.com.
  • Page 11: Operation

    Air Compressor Components Details Continued This air compressor was specifically designed to be mounted on a cart for customer convenience. The Compressor Cart Interface Pegs (M) and the Rubber Feet (O) are interchangeable based on the configuration that matches your needs. For normal use, the Rubber Standing Feet should be installed. P) Air Tank Drain Valve –...
  • Page 12: Motor Overload Protection

    than 25 feet will cause a voltage drop at the compressor and will limit compressor performance. iii. The extension cord should be at least 12 gauge (AWG) or larger. Note, wire sizes increase as the gauge number decreases. DO NOT USE 14, 16, or 18 AWG EXTENSION CORDS. Use appropriate safety equipment.
  • Page 13: Maintenance & Servicing

    NOTICE! Any maintenance or service operations that are not included in the following table should be performed by a trained Forney Warranty Service Technician or authorized Forney Warranty Service Center. To find an authorized Forney Warranty Service Center in your area, please visit www.forneyind.com.
  • Page 14: Accessories

    The Forney Easy Weld 20 P Plasma Cutter is the perfect tool for the DIY enthusiast. Weighing in at just over 20 lbs., the Forney Easy Weld 20 P plugs right into a standard 120V wall outlet and slices through ¼” steel with ease. The 4.5 CFM air compressor was specifically designed to be an all-in-one plasma cutting station.
  • Page 15: Parts List & Exploded View

    Air Filter / Moisture Separator Capacitor Assembly Capacitor Assembly Rubber Feet / Cart Interface Pegs Rubber Feet / Cart Interface Pegs Wheel Kit Forney Customer Service: 1-800-521-6038 Telescoping Luggage Handle 4.5 CFM Air Compressor Wheel Kit Installation (4.5 CFM Model Only) WWW.FORNEYIND.COM...
  • Page 16 Wheel Kit Installation (4.5 CFM Model Only) Continued 2.5 CFM Air Compressor WWW.FORNEYIND.COM...
  • Page 17 User Notes _______________________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________...
  • Page 18 User Notes _______________________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________...
  • Page 19 User Notes _______________________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________...
  • Page 20 Forney Industries, Inc. 2057 Vermont Drive Fort Collins, CO 80525 +1-800-521-6038 www.forneyind.com...

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