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390
Operator's Manual
Read these instructions carefully and make sure
you understand them before using the 390.

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Table of Contents
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Summary of Contents for Husqvarna 390

  • Page 1 Operator’s Manual Read these instructions carefully and make sure you understand them before using the 390.
  • Page 2: Table Of Contents

    Your 390 electric saw has been shipped from the factory thoroughly inspected. The durable travel case contains the 390 saw, a blade shaft wrench, an owner’s manual, a part list, Table of contents ………………………….. a warranty card, a pack of thumb nuts, and a joint protector Unpacking ..........
  • Page 3: I Ntroduction, Personal Safety

    The 390 electric saw is designed as a residential and light commercial Ultra Early Entry concrete saw and is one of the smallest and lightest saws in the Husqvarna Soff-Cut line. The patented Soff-Cut Ultra Early Entry dry cutting system controls random cracking of concrete through the early timing of the saw cutting usually within one to two hours after the finishing process is completed.
  • Page 4: Registration Of The Product

    SERIAL No: __________________ ENGINE MODEL: _____________ ENGINE TYPE: ______________ ENGINE CODE: ________________ The 390 serial number as well as the engine model number, engine type and code are critical in order to obtain the correct service parts. SAFETY DEFINITIONS In this manual a Safety Alert Symbol followed by the signal words WARNING and CAUTION are used to identify safety information about hazards which can result in death, serious injury and/or property damage.
  • Page 5: Safety Warnings

    • Wear boots with non-slip soles to provide proper footing. Steel-toed safety boots are recommended. • Husqvarna Excel Series diamond blades is designed to only cut green concrete. Cutting any other material may result in • Wear rubber work gloves to avoid contact with wet concrete blade failure or a dangerous condition.
  • Page 6: Excel Series Blades

    EXCEL SERIES BLADES The Excel Series of diamond blades have been designed specifically for the Soff-Cut Ultra Early Entry dry cutting system of green concrete. These specialty blades are designed to increase speed and life while cutting a wide range of aggregates. Choose the correct specification of diamond blade for your area as follows: Red Excel Series 3000 XL55-3000A...
  • Page 7: What Is What

    WHAT IS WHAT Model number and serial number What is what? Guide On-Off switch C. Blade guard D. Arbor lock lever Hooked guide latch Depth gauge G. Box release lever H. Aggregate adjuster Lifting handle Hour meter...
  • Page 8: Operating Instructions

    Under To begin sawing, line up the saw with the cut line using the no circumstance should the 390 or any of its attach- white wheel on the front guide (A) and the small notch on the ments be operated if you find damage or are suspi- back of the base plate.
  • Page 9: Grounding Instructions

    GROUNDING INSTRUCTIONS MAINTENANCE Grounding of the 390 electric saw is necessary while in use Guards to protect the operator from electric shock or electrocution. Check all guards for damage and proper function daily espe- The saw is equipped with an approved three-conductor cord cially the blade guard.
  • Page 10: Maximizing The Soff-Cut System

    While Soff-Cut is being specified more today than ever, sometimes the ultra early-entry spec is not always followed on the job site. In order for the Soff-Cut system and an experienced Husqvarna contractor to do a satisfactory job, four components must exist to meet the “specification”: 1.
  • Page 11: Sawing Contraction Joints

    Husqvarna sawed contraction joints should be a mini- mum of 1/8th the concrete depth and a minimum of 1” (25mm) deep. Contraction joints should be sawn as soon as the concrete will support the weight of the saw and the operator without marking or damaging the concrete.
  • Page 12: Troubleshooting

    MOTOR RUNS BUT BOGGS DOWN WHEN CUTTING - Use Husqvarna joint protectors at all cut intersections. - Check that the extension cord is the proper wire gauge size for the length of the used.
  • Page 13: Technical Specifications

    TECHNICAL SPECIFICATIONS Weight and Dimensions 390 Weight 27 lbs 12 kg Operating weight 30 lbs 14 kg Length (Handle not installed) 30 inch 762 mm Width 15 inch 381 mm Height 11 inch 279 mm Blade Material cut Green concrete only Blade type 5.5 inch (140 mm) dry cut diamond blade with tri-arbor...
  • Page 14: Warranty

    HUSQVARNA EQUIPMENT WARRANTY New 390 saw sold by Husqvarna Construction Products are warranted to be free from manufacturing defects in normal service for a period of six (6) months for labor and up to one (1) year on parts from date of purchase by the original consumer purchaser or date of introduction into rental company fleet.
  • Page 15 www.husqvarnacp.com 505 41 78-11 2014-09-24 Printed In U.S.A.

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