Oregon 890F4 FLUSH Operator's Manual
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Oregon 890F4 FLUSH Operator's Manual

Oregon 890F4 FLUSH Operator's Manual

Flush cut hydraulic saw
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890F4 FLUSH
Flush Cut Hydraulic Saw
OPERATOR'S MANUAL
© 2022 OREGON®, Oregon Tool Inc. Specifications are subject to change without notice. REV09062022 F/N 566594

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Summary of Contents for Oregon 890F4 FLUSH

  • Page 1 890F4 FLUSH Flush Cut Hydraulic Saw OPERATOR’S MANUAL © 2022 OREGON®, Oregon Tool Inc. Specifications are subject to change without notice. REV09062022 F/N 566594...

  • Page 3: Table Of Contents

    890F4 FLUSH OPERATOR’S MANUAL TABLE OF CONTENTS INTRODUCTION This manual outlines the maintenance and operation of OREGON manufactured products. ® This is a professional tool and is solely intended for use by trained and experienced operators. The 890 FLUSH chainshaw is designed to cut concrete, stone and masonry when used with the appropriate OREGON Diamond Chain.

  • Page 4: Symbols & Labels

    SYMBOLS & LABELS 890F4 FLUSH OPERATOR’S MANUAL THE FOLLOWING SYMBOLS AND DEFINITIONS ARE FOUND THROUGHOUT THIS MANUAL AND ARE DESIGNED TO MAKE YOU AWARE OF POTENTIAL HAZARDS OR UNSAFE PRACTICES. A potentially hazardous situation exists which, if not avoided, could result WARNING in death or serious injury.

  • Page 5: Safety

    890F4 FLUSH OPERATOR’S MANUAL SAFETY THE FOLLOWING SYMBOL APPLIES TO ALL THE ITEMS LISTED ON THIS PAGE A potentially hazardous situation exists which, if not avoided, could result in WARNING death or serious injury. Diamond chain breakage can result in high-speed ejection of parts, which can result in death or serious personal injury to operators or bystanders.
  • Page 6 SAFETY 890F4 FLUSH OPERATOR’S MANUAL THE FOLLOWING SYMBOL APPLIES TO ALL ITEMS LISTED ON THIS PAGE CAUTION A potentially hazardous situation exists which, if not avoided, may result in minor or moderate injury or property damage. • Always turn the saw OFF when performing maintenance on the saw, including chain tensioning.

  • Page 7: Technical Specifications

    TECHNICAL SPECIFICATIONS 890F4 FLUSH OPERATOR’S MANUAL 890 Series 8 gpm (30 lpm) 890 Series 12 gpm (45 lpm) Weight w/out bar and 23.5 lbs (10.6 kg) chain (1' hose whips) Length 23 inches (58.5 cm) Height 10.5 inches (26.5 cm) Width 9.5 inches (24 cm)

  • Page 8: Set-Up

    SET-UP 890F4 FLUSH OPERATOR’S MANUAL GUIDE BAR AND DIAMOND CHAIN INSTALLATION STEP 4 STEP 1 Mount the chain on the bar starting at the Loosen the three side cover bolts and drive sprocket & continue over the bar two bar retainer plate bolts using the 13 nose.
  • Page 9 SET-UP 890F4 FLUSH OPERATOR’S MANUAL GUIDE BAR AND DIAMOND CHAIN INSTALLATION STEP 7 Tension the chain. Do not over tension the diamond chain. Loss of power will result. CORRECT CHAIN TENSION All chains have a tendency to stretch CHAIN TOO TIGHT CHAIN TOO LOOSE when used.
  • Page 10 SET-UP 890F4 FLUSH OPERATOR’S MANUAL STEP 8 Lift up on the nose of the bar and firmly tighten the bar retainer bolts. To prevent chain tensioner breakage, be sure the side cover nuts are tightened to approximately 20 ft-lbs (27 Nm).

  • Page 11: Operation

    890F4 FLUSH OPERATOR’S MANUAL OPERATION PRE-CUT CHECKLIST • Ensure proper chain tension: The chain should be easily pulled around the guidebar by hand. • Ensure all safety devices are properly mounted and functional and that all controls are in proper working order.
  • Page 12 890F4 FLUSH OPERATOR’S MANUAL OPERATION CUTTING TIPS • To start a cut, hold trigger on full throttle and slowly plunge the nose of the guidebar straight into the wall. Use the fixed WallWalker as a pivot point and pull up on the rear handle to rotate the guidebar into the cut.
  • Page 13 890F4 FLUSH OPERATOR’S MANUAL OPERATION CUTTING DUCTILE IRON PIPE WITH POWERGRIT UTILITY SAW CHAIN ® NEVER cut ductile iron pipe with the saw unless using PowerGrit Utility Saw Chain. The following are safety precautions that should always be followed when using PowerGrit.

  • Page 14: Maintenance

    MAINTENANCE 890F4 FLUSH OPERATOR’S MANUAL SYSTEM CLEAN-UP • After cutting, run the saw for at least 15 seconds with the water on to flush slurry and debris from Diamond Chain, guidebar and drive sprocket. • Wash concrete slurry from saw assembly.

  • Page 15: Troubleshooting

    890F4 FLUSH OPERATOR’S MANUAL TROUBLESHOOTING PROBLEM Possible Cause Chain tension too tight. Diamond Chain should always be able to be pulled around the guidebar by hand. It is normal for the diamond chain links to hang below the guidebar. SLOW DIAMOND CHAIN SPEED Hydraulic flow rate and pressure not correct 8 gpm/20 lpm 12 gpm/45 lpm at 2500 psi/172.5 bar...

  • Page 16: Reference

    REFERENCE 890F4 FLUSH OPERATOR’S MANUAL APPROXIMATE CUTTING RATES Material Cutting Rate Concrete – 6 in (15 cm) 5 linear in/min (12 cm/min) Red Brick – 6 in (15 cm) 10 linear in/min (25 cm/min) *Rebar – #4 (12 mm) *10–20 seconds through each piece *Rebar must be encased in concrete, never cut bare rebar with OREGON Diamond Chain.
  • Page 17 890F4 FLUSH OPERATOR’S MANUAL REFERENCE PERFORMANCE LOSS VS. HYDRAULIC HOSE LENGTH ASSUMPTIONS: • 8 gpm (30 lpm) or 12 gpm (45 lpm) flow at 2,500 psi (172.5 bar) • Zero elevation change • Two pairs of flush-face fittings per hose •...

  • Page 18: Declaration Of Conformity

    890F4 FLUSH OPERATOR’S MANUAL EC ‐ DECLARATION OF CONFORMITY  OREGON TOOL INC., 4909 SE INTERNATIONAL WAY, PORTLAND, OR 97222 USA   DECLARES UNDER OUR SOLE RESPONSIBILITY THAT THE FOLLOWING PRODUCTS:  _____________________________________________________________________________________________________________________  Brand:  OREGON  Product Type:   Hydraulic Cut‐off machine equipped with diamond saw chain   Model:  890F4, 890F4‐FL, 890PG  _____________________________________________________________________________________________________________________  ARE COMPLIANT WITH THE FOLLOWING APPLICABLE EUROPEAN DIRECTIVES AND STANDARDS:  Machinery Directive (MD) 2006/42/EC  EN ISO 12100:2010  EN ISO 5349‐1:2001  EN ISO 5349‐2:2001  EN ISO 3744:2009  ISO 10726:1992  _____________________________________________________________________________________________________________________  TECHNICAL DOCUMENTATION FILE, LOCATION AND CONTACT:  Oregon Tool Inc.  4909 SE International Way  Portland, Oregon 97222, USA  For product compliance inquiries, send request to productcompliance@oregontool.com    Authorized Representative:  Christopher Seward PE  Authorized Signature:    Title:  Director: Product Safety & Compliance  Place Issued:   Portland, Oregon, USA  Date Originally Issued:  13 November, 2017  Date Revised: ...
  • Page 19 890F4 FLUSH OPERATOR’S MANUAL © 2022 OREGON®, Oregon Tool Inc. Specifications are subject to change without notice. REV09062022 F/N 566594...
  • Page 20 890F4 FLUSH OPERATOR'S MANUAL OREGON, Oregon Tool Inc. 4909 SE International Way Portland, OR 97222 Tel 800.321.1240 OREGONCONSTRUCTION.COM © 2022 OREGON®, Oregon Tool Inc. Specifications are subject to change without notice. REV09062022 F/N 566594...

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