Oregon Chain Saw Maintenance And Safety Manual
  1. Manuals
  2. Brands
  3. Oregon Manuals
  4. Chainsaw
  5. CHAINSAW
  6. Maintenance and safety manual

Oregon Chain Saw Maintenance And Safety Manual

Saw chain, guide bars, and drive sprockets
Hide thumbs Also See for Chain Saw:
Table of Contents

Advertisement

Quick Links

Maintenance & Safety Manual for
Saw Chain, Guide Bars, and Drive Sprockets
★
★
★ ★
Blount, Inc.
Oregon Cutting Systems Group
4909 S.E. International Way (97222-4607)
P.O. Box 22127 • Portland, Oregon • 97269-2127
(503) 653-4706
www.oregonchain.com
Oregon Distribution Ltd.
Guelph, Ontario, Canada N1H 6L4
(519) 822-6870
www.oregonchain.ca
Printed in USA
F/N A106971 AG 0904
★ ★
Saw Chain, Guide Bar and Drive Sprocket
Maintenance and

Safety Manual

This Maintenance & Safety Manual supercedes and replaces
all previous Oregon
®
Maintenance & Safety Manuals
Read and follow all Chainsaw
Safety Warnings and
Important Safety Information.

Advertisement

Table of Contents
loading

Related Manuals for Oregon Chain Saw

Summary of Contents for Oregon Chain Saw

  • Page 1: Safety Manual

    Maintenance & Safety Manual for Saw Chain, Guide Bar and Drive Sprocket Saw Chain, Guide Bars, and Drive Sprockets Maintenance and Safety Manual ★ ★ ★ ★ ★ ★ Blount, Inc. Oregon Cutting Systems Group 4909 S.E. International Way (97222-4607) P.O.
  • Page 2 Chainsaw Safety ANSI Chain Chart IMPORTANT SAFETY INFORMATION IMPORTANT SAFETY MESSAGE OREGON ® SAW CHAIN CLASSIFICATION CHART AFETY SYMBOL This safety symbol is used to highlight safety messages. When ANSI-STANDARD LOW-KICKBACK SAW CHAIN you see this symbol, read and follow the safety message to avoid severe personal injury.

  • Page 3: What Is Kickback

    Chainsaw Safety WHAT IS KICKBACK? Kickback is the violent backward and/or upward motion of the chainsaw guide bar occurring when the chain near the nose or tip of the guide bar contacts any object, such as another log or branch, or when the wood closes in and pinches the saw chain in the cut.
  • Page 4 Chainsaw Safety, (Continued) AKE PROPER WORK PRACTICES A HABIT Use only a right- Hold saw firmly Run engine at handed grip to with both hands. full throttle. hold your saw Keep thumb firmly Use low-kickback (right hand on locked under front saw chain and a the trigger, left handle.

  • Page 5: Table Of Contents

    Introduction/Contents Your chainsaw is only as good as your chain, guide bar, and sprocket. They function as a team while cutting wood and must be maintained as a team. A properly maintained chain, bar, and sprocket will provide excellent cutting performance. An improperly maintained chain will cause damage to the bar and sprocket, will cut poorly, and will create potential safety hazards.

  • Page 6: End Use Symbols

    ® Saw Chain End-Use Symbols Each of these four symbols represents a generalized category of chain saw use. Oregon chains are listed ® in this manual under one or more of these symbols, generally indicating the type of use for which the product is intended.

  • Page 7: For Periodic Maintenance

    The Five Oregon Symbols ® Saw Chain for Periodic Maintenance To keep your cutting system of chain, bar, and sprocket working at peak efficiency - and to minimize wear - there are a number of things every user should do periodically. There are specific maintenance tasks that should be performed and there are more general “common-sense”...

  • Page 8: Chain Terms

    Saw Chain OREGON CHAIN TERMS ® CHAIN PITCH Chain pitch is the distance between any three consecutive rivets, divided by two. Oregon ® chain pitches are: 1/4," .325" , 3/8," .404," 3/4." ÷ 2 CHAIN GAUGE Chain gauge is the drive link’s thickness where it fits into the guide-bar groove.

  • Page 9: Parts Of A Saw Chain

    Saw Chain OREGON CHAIN TERMS ® (CONTINUED) THE PARTS OF A SAW CHAIN Parts below named in Bold Face indicate kick- NOTE back-reducing links and features: bumper tie straps, bumper drive links, and ramped depth gauges. Preset tie strap Bumper tie strap Bumper tie strap Left-hand cutter w/ ramped depth...

  • Page 10: Chain Maintenance Tools

    Saw Chain OREGON CHAIN-MAINTENANCE TOOLS ® FILING TOOLS ASSEMBLED FILE GUIDE SHARPENING KITS *Asst’d. P/N’s *Asst’d. P/N’s ROUND FILE FLAT FILE DEPTH-GAUGE *Asst’d. P/N’s P/N 12211 TOOLS *Asst’d. P/N’s BAR-MOUNT FILING GUIDE FILE HANDLE P/N 23736A P/N 30870B (100 CT.) *See pages 35-63 for part numbers, file sizes, and other help selecting the right tools for your Oregon chain.

  • Page 11: Grinding Wheels

    Saw Chain OREGON CHAIN-MAINTENANCE TOOLS ® GRINDERS SURE SHARP BENCH-MODEL GRINDING WHEELS ® 12-VOLT CHAIN GRINDER FOR 511A GRINDER GRINDER P/N 511A *Asst’d. P/N’s P/N 28588 See page 8 MINI GRINDER BAR-MOUNTED GRINDING WHEELS P/N 108181 CHAIN GRINDER FOR MINI GRINDER P/N 109178 (12 V) &...
  • Page 12 Saw Chain 511-A GRINDER WHEELS GRINDING WHEEL GRINDING WHEEL CORRESPONDS PART NUMBER WIDTH TO FILE SIZE DIAMETER(S) OR534-18 1/8" 5/32" or 4.5mm OR534-316 3/16" 3/16" or 7/32" OR534-516 5/16" 5/16" MINI GRINDER AND BAR-MOUNTED CHAIN GRINDER WHEELS GRINDING WHEEL GRINDING WHEEL CORRESPONDS PART NUMBER WIDTH...

  • Page 13: Chain Identification (Id)

    Saw Chain CHAIN IDENTIFICATION OREGON ® FILING OREGON ® CHAIN CUTTER TYPE CUTTER KICKBACK- CHAIN SPEC’S CHAIN GAUGE SEQUENCE REDUCING PART TYPE SIDE FEATURES NUMBER VIEW VIEW (IF ANY) 1/4" – PITCH CHAIN 25AP PAGE MICRO .050" MICRO CHISEL ® STANDARD CHISEL ®...
  • Page 14 Saw Chain CHAIN IDENTIFICATION (CONTINUED) OREGON ® FILING OREGON ® CHAIN CUTTER TYPE CUTTER KICKBACK- CHAIN SPEC’S CHAIN GAUGE SEQUENCE REDUCING SIDE PART TYPE FEATURES VIEW VIEW NUMBER (IF ANY) 3/8" – PITCH CHAIN (CONTINUED) 72DG,DJ PAGE SPEED .050" SEMI-CHISEL (DG) ST’D.
  • Page 15 Saw Chain CHAIN IDENTIFICATION (CONTINUED) OREGON ® FILING OREGON ® CHAIN CUTTER TYPE CUTTER KICKBACK- CHAIN SPEC’S CHAIN GAUGE SEQUENCE REDUCING SIDE PART TYPE FEATURES VIEW VIEW NUMBER (IF ANY) .404" – PITCH CHAIN PAGE HAR- .063" MICRO CHISEL ® STANDARD VESTER .080"...

  • Page 16: Drive-Link Number Id

    Saw Chain CHAIN DRIVE-LINK NUMBER IDENTIFICATION Nearly all Oregon chains are named by a part ® number made up of a number (see below), and letters (see pages 13-14). Oregon Part-number Examples: 27A, 72LP, 91VG, ® M72LP First, note the numbers: 27 A, 72 LP, 91 VG, M 72 LP These numbers are stamped on the chain’s drive links and indicate the physical size of the chain (pitch and gauge).

  • Page 17: Chain Letter Id

    Saw Chain CHAIN LETTER IDENTIFICATION The Letters: 27 A , 72 LP , 91 VG , M 72 LP The letters represent cutter type and sequence, kick- back-reducing features, or other physical traits of the chain. Micro Chisel ® cutters CK Square-ground chisel with skip sequence cutters with ramped...

  • Page 18: Chain Letter Id

    Saw Chain CHAIN LETTER IDENTIFICATION (CONTINUED) JG Round-ground chisel RA Ripping chain with cutters with ramped Micro Chisel ® cutters depth gauges, and skip sequence bumper tie straps (27RA only) and skip sequence RD Ripping chain with JP Round-ground chisel semi-chisel cutters and cutters with bumper standard sequence...

  • Page 19: Four Basic Rules

    Saw Chain THE FOUR BASIC SAW-CHAIN RULES ATTENTION CHAINSAW USERS: Oregon urges you to become familiar with the four ® basic saw-chain rules. Users who know and follow these rules can count on superior performance from their chain, bar, and sprocket – and – reduce safety hazards at the same time.
  • Page 20 Saw Chain RULE NUMBER 3 OUR CHAIN MUST BE SHARP When your chain is sharp, it does the work. When it’s not, you do the work – and your cutting attachments will wear more rapidly. See pages 22-26 for instructions on how to sharpen your chain.

  • Page 21: Chain Maintenance

    Saw Chain HOW TO MAINTAIN CHAIN ATTENTION: Oregon urges dealers, chainsaw users, ® and anyone who services saw chain to become familiar with proper chain-maintenance techniques and the pos- sible dangers which can result if chain is not properly maintained. WARNING Failure to follow the instructions below can result in severe injury to the saw operator, bystanders, or the...
  • Page 22 Saw Chain HOW TO TENSION YOUR CHAIN Basic Chain-Tensioning Tasks ▲ Before use ■ Often ● Daily ◆ Weekly Never ▲ Tension chain before each use ■ Tension chain often, or at each refueling Never tension your chain right after cutting. Chain tensioned while hot can cool and shrink, causing tension to be too tight.
  • Page 23 Saw Chain HOW TO TENSION YOUR CHAIN (3a CONTINUED) Turn your saw’s tension-adjustment screw until the bottoms of the lowest tie straps and cutters come up and just touch the bottom of the bar rail. While still holding the nose up, tighten your saw’s rear bar- mounting nut first, then tighten the front mounting nut.
  • Page 24 Saw Chain HOW TO TENSION YOUR CHAIN (CONTINUED) 3c. I ® F YOU HAVE AN INTENZ SPROCKET NOSE BAR Turn the tension-adjust slot until the bottoms of the lowest cutters and tie straps come up and solidly contact the bottom of the bar rail. Tighten your saw’s rear bar-mounting nut first, then tighten the front...

  • Page 25: Chain Lubrication

    Saw Chain 5. Check tension often during operation, especially during the first half-hour. If chain loosens: stop, let chain cool, and readjust tension. HOW TO LUBRICATE YOUR CHAIN Basic Lubrication Tasks ▲ Before use ■ Often ● Daily ◆ Weekly Never ▲...
  • Page 26 Saw Chain HOW TO SHARPEN CHAIN Basic Sharpening Tasks ▲ Before use ■ Often ● Daily ◆ Weekly Never ▲ Sharpen chain before each use. ■ Sharpen chain often, or as needed. EAD THE WARNING ON NOTES Sharpening your chain while it is on the saw requires proper chain tension, as shown on pages 18-21 prior to filing.

  • Page 27: Sharpening Chain

    Saw Chain • Abnormal chain wear. • Wear patterns on the chain that may indicate a worn bar or sprocket. • Loose rivets (if you can rotate the rivets with your fingers, they’re too loose). 4. Use the correct sharpening specifications for your Oregon ®...
  • Page 28 Saw Chain 2. To set the proper grinder head angle, use the recommended t t o o p p - - p p l l a a t t e e c c u u t t t t i i n n g g a a n n g g l l e e ( See pages 35-63 for correct angles for each Oregon...
  • Page 29 Saw Chain SHARPENING WITH A ROUND FILE 1. Be sure 1/5th, or 20%, of the file’s diameter is always held above the cutter’s top plate. The best way to do this is with an Oregon File Guide. The file guide ®...
  • Page 30 Saw Chain 5. Keep all cutter lengths equal. HOW TO SET DEPTH GAUGES Basic Depth-Gauge Tasks ▲ Before use ■ Often ● Daily ◆ Weekly Never ■ Set depth gauges often, every 3 or 4 sharpenings, or more often if needed. EAD THE WARNING ON NOTES Setting your depth gauges while the chain is on...
  • Page 31 Saw Chain HOW TO SET DEPTH GAUGES (CONTINUED) Most Oregon chains have a number stamped on ® each depth gauge indicating the correct depth-gauge setting. XAMPLE .025" .025" DEPTH- GAUGE SETTING ■1. Use a depth-gauge tool with the correct built-in setting for your chain and check your depth gauges every 3 or 4 sharpenings or more often if needed.
  • Page 32 Saw Chain HOW TO SET DEPTH GAUGES (CONTINUED) 4. If the depth gauge extends above the slot, file the depth gauge down level with the top of the tool using a flat file. Never file the depth gauge down so far that you exceed the depth-gauge setting specified in this manual for your Oregon chain.
  • Page 33 Saw Chain **Do not round off the depth gauges on Vanguard chain after filing them down. On many chains, it may be helpful to tip the NOTE depth-gauge tool on end and place it in front of the cutting corner in order to protect the cut- ting surfaces when rounding off depth gauges.
  • Page 34 Saw Chain 3. The area where depth-gauge filing occurs on Vanguard chain is identified by a witness mark. Do not file outside the witness mark and do not round off Vanguard depth gauges after lowering them. 3. Always file Vanguard depth gauges from the n n s s i i d d e e o o u u t t .
  • Page 35 Saw Chain 3. Place the preset tie strap on a flat outer surface of a chain-breaker anvil. Be sure the rivets are pointing up. 4. Assemble chain to the preset tie strap. 5. Assemble tie strap with dot, or Lubrilink contour face up, and the notch toward the drive-link tangs.

  • Page 36: Breaking Out Rivets

    Saw Chain HOW TO BREAK OUT RIVETS AUTION Always wear approved safety accessories for hands and face when breaking out rivets. 1. Place the chain segment you wish to break in the correct slot of the anvil, according to pitch. For Vanguard NOTE chain cutters with...
  • Page 37 Saw Chain HOW TO BREAK OUT RIVETS (CONTINUED) REMOVING RIVETS FROM BROKEN DRIVE LINKS 1. When removing rivets from broken drive links, hold the two broken segments together in their original (unbroken) positions as you place the chain link in the anvil.

  • Page 38: Breaking In A Chain

    Saw Chain HOW TO BREAK IN A NEW CHAIN Basic Break-In Tasks ▲ Before use ■ Often ● Daily ◆ Weekly Never The life of your new chain can be extended by taking these few simple steps before using it. ▲...

  • Page 39: Filing Specifications

    Micro Chisel 1/4" ® MICRO CHISEL ® Kickback Reducing View Features Not a Low- Chain Type Gauge kickback Chain 25AP .050" FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 60° .025" SIDE-PLATE TOP-PLATE FILE-GUIDE ANGLE FILING ANGLE ANGLE 85° 30° 10° TOOLS FOR FILING Part No.
  • Page 40 Micro Chisel .325" ® MICRO CHISEL ® Kickback Reducing View Features Not a Low- Chain Type Gauge kickback Chain 20BP .050" Low-vibration 21BP .058" Chain 22BP .063" FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 60° .025" SIDE-PLATE TOP-PLATE FILE-GUIDE ANGLE FILING ANGLE ANGLE 85°...
  • Page 41 Super 20 .325" CHISEL ® Kickback Reducing View Features Not a Low- Chain Type Gauge kickback Chain 20LP, M20LP .050" Low-vibration 21LP, M21LP .058" Chain 22LP, M22LP .063" FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 60° .025" SIDE-PLATE TOP-PLATE FILE-GUIDE ANGLE FILING ANGLE ANGLE 60°...
  • Page 42 Super Guard .325" ® CHISEL ® Kickback Reducing View Features Not a Low- Chain Type Gauge kickback Chain 33LG .050" No Bumper 34LG .058" Tie Straps 35LG .063" Low-vibration Chain FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 60° .025" HEEL DOWN SIDE-PLATE TOP-PLATE FILE-GUIDE...
  • Page 43 Pro Guard .325" ™ CHISEL ® Kickback Reducing View Features A Low- Chain Type Gauge kickback Chain 33SL .050" With Bumper 34SL .058" Tie Straps 35SL .063" Low-vibration Chain FILING DEPTH-GAUGE/BUMPER TOP-PLATE TIE STRAP SETTING CUTTING ANGLE Depth gauge setting 60°...
  • Page 44 Micro-Lite .325" ™ MICRO CHISEL ® Kickback Reducing View Features A Low-kickback Chain Type Gauge Chain 95VP .050" Low-vibration Chain Narrow-kerf Chain FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 60° .025" HEEL DOWN SIDE-PLATE TOP-PLATE FILE-GUIDE ANGLE FILING ANGLE ANGLE 80° 30°...
  • Page 45 Ripping Chain .325" MICRO CHISEL ® View Not a Low- Chain Type Gauge kickback Chain 95R (Micro-Lite .050" Narrow-kerf Chain Low-vibration Chain FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 50° .030" HEEL DOWN SIDE-PLATE TOP-PLATE FILE-GUIDE ANGLE FILING ANGLE ANGLE 75° 90°...
  • Page 46 Oregon Vanguard 3/8" ® OREGON VANGUARD ® Kickback Reducing View Features Chain Type Gauge .050" .058" .063" Low-kickback Performance Low-vibration Chain FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 60° .025" HEEL DOWN SIDE-PLATE TOP-PLATE FILE-GUIDE ANGLE FILING ANGLE ANGLE 60° 10° 25°...
  • Page 47 S-70 3/8" SEMI CHISEL Kickback Reducing View Features Not a Low- Chain Type Gauge kickback Chain 72AP, 72DP .050" 73DP .058" 75DP .063" FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 60° .025" SIDE-PLATE TOP-PLATE FILE-GUIDE ANGLE FILING ANGLE ANGLE 85° 90° 35°...
  • Page 48 Speed Guard 3/8" ™ SEMI CHISEL Kickback Reducing View Features Not a Low- Chain Type Gauge kickback Chain 72DG*, 72DJ* .050" 73DG* .058" 75DG* .063" *Recently obsoleted Oregon chain part numbers ® FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 60° .030" SIDE-PLATE TOP-PLATE FILE-GUIDE...
  • Page 49 Super Guard 3/8" ® CHISEL Kickback Reducing View Features Not a Low- Chain Type Gauge kickback Chain 72JG, 72LG .050" 73JG, 73LG .058" 75JG, 75LG .063" FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 60° .025" SIDE-PLATE TOP-PLATE FILE-GUIDE ANGLE FILING ANGLE ANGLE 60°...
  • Page 50 Super 70 3/8" CHISEL Kickback Reducing View Features Not a Low- Chain Type Gauge kickback Chain 72JP, 72LP, M72LP .050" Low-vibration 73JP, 73LP, M73LP .058" Chain 75LP, M75LP .063" FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 60° .025" SIDE-PLATE TOP-PLATE FILE-GUIDE ANGLE FILING ANGLE ANGLE...
  • Page 51 XtraGUARD 3/8" ® SEMI CHISEL Kickback Reducing View Features A Low- Chain Type Gauge kickback Chain 72SG* .050" With Bumper 73SG* .058" Tie Straps 75SG* .063" *Recently obsoleted Oregon ® chain part numbers FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 60° .030"...
  • Page 52 " Square-Ground Chain 3/8 CHISEL Kickback Reducing View Features Not a Low- Chain Type Gauge kickback Chain 72CJ, 72CJX, 72CK, .050" 72CKX, 72CL, 72CLX 75CJ, 75CJX, 75CK, .063" 75CKX, 75CL, 75CLX FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 40°-50° .025" SIDE-PLATE TOP-PLATE GULLET FILING ANGLE...
  • Page 53 Ripping Chain 3/8" SEMI CHISEL Kickback Reducing View Features Not a Low- Chain Type Gauge kickback Chain 72RD .050" 73RD .058" 75RD .063" FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 50° .025" SIDE-PLATE TOP-PLATE FILE-GUIDE ANGLE FILING ANGLE ANGLE 75° 10°-15° 10°...
  • Page 54 Micro-lite 3/8" CHAMFER CHISEL Kickback Reducing View Features A Low-kickback Chain Type Gauge Chain 90SG .043" With Bumper Tie Straps Low-vibration Chain Narrow-kerf Chain FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE .025" 50° HEEL DOWN SIDE-PLATE TOP-PLATE FILE-GUIDE ANGLE FILING ANGLE ANGLE 75°...
  • Page 55 XtraGUARD 3/8" ® CHAMFER CHISEL Kickback Reducing View Features A Low- Chain Type Gauge kickback Chain .050" With Bumper Drive Links FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 60° .025" SIDE-PLATE TOP-PLATE FILE-GUIDE ANGLE FILING ANGLE ANGLE 80° 90° 30° TOOLS FOR FILING Part No.
  • Page 56 Low Profile 3/8" CHAMFER CHISEL Kickback Reducing View Features Not a Low- Chain Type Gauge kickback Chain 91VS, M91VS .050" No Bumper Tie Straps Low-vibration Chain FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 60° .025" SIDE-PLATE TOP-PLATE FILE-GUIDE ANGLE FILING ANGLE ANGLE 80°...
  • Page 57 XtraGUARD 3/8" ® CHAMFER CHISEL Kickback Reducing View Features A Low- Chain Type Gauge kickback Chain 91VG .050" With Bumper Tie Straps Low-vibration Chain FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 60° .025" SIDE-PLATE TOP-PLATE FILE-GUIDE ANGLE FILING ANGLE ANGLE 80° 90°...
  • Page 58 Micro Chisel .404" ® MICRO CHISEL Kickback Reducing View Features 26P, 27P 26, 27, 27A Not a Low- Chain Type Gauge kickback Chain 26, 26P .058" 27, 27A, 27P .063" FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 60° .030" SIDE-PLATE TOP-PLATE FILE-GUIDE ANGLE FILING ANGLE...
  • Page 59 Ripping Chain .404" MICRO CHISEL View Not a Low- Chain Type Gauge kickback Chain .063" 27RA (skip) .063" FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 50° .030" SIDE-PLATE TOP-PLATE FILE-GUIDE ANGLE FILING ANGLE ANGLE 75° 10°-15° 10° TOOLS FOR FILING Part No. Description 70502 7/32"...
  • Page 60 Super Chisel .404" ™ CHISEL Kickback Reducing View Features Not a Low- Chain Type Gauge kickback Chain 50L* .050" 51L* .058" 52L* .063" *Recently obsoleted Oregon ® chain part numbers FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 60° .025" SIDE-PLATE TOP-PLATE FILE-GUIDE ANGLE FILING ANGLE...
  • Page 61 Micro-Bit .404" ® CHIPPER Kickback Reducing View Features Not a Low- Chain Type Gauge kickback Chain 58CP* .058" 59CP* .063" *Recently obsoleted Oregon ® chain part numbers FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 60° .030" SIDE-PLATE TOP-PLATE FILE-GUIDE ANGLE FILING ANGLE ANGLE 90°...
  • Page 62 Super Guard .404" ® CHISEL Kickback Reducing View Features Not a Low- Chain Type Gauge kickback Chain 58J, 58L, 58LG* .058" 59J, 59L, 59JG*, 59LG* .063" *Recently obsoleted Oregon chain part numbers ® FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 60° .025"...
  • Page 63 Square-Ground Chain .404" CHISEL Kickback Reducing View Features Not a Low- Chain Type Gauge kickback Chain 50AJ*, 50AL* .050" 58CJ, 58CL, 51AJ*, 51AL* .058" 59CJ, 59CK, 59CL, .063" 52AJ*, 52AK*, 52AL* *Recently obsoleted Oregon chain part numbers ® FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE...
  • Page 64 Harvester Chain .404" CHIPPER Kickback Reducing View Features Chain Type Gauge 59AA .063" Harvester, no hand-held applications FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 60° .030" SIDE-PLATE TOP-PLATE FILE-GUIDE ANGLE FILING ANGLE ANGLE 90° 10° 35° TOOLS FOR FILING Part No. Description 70502 7/32"...
  • Page 65 Harvester Chain .404" MICRO CHISEL ® Kickback Reducing View Features Chain Type Gauge .063" .080" Harvester, no hand-held applications FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 60° .050" SIDE-PLATE TOP-PLATE FILE-GUIDE ANGLE FILING ANGLE ANGLE 80° 10° 35° TOOLS FOR FILING Part No.
  • Page 66 Harvester Chain 3/4" CHIPPER Kickback Reducing View Features Chain Type Gauge 11BC .122" Harvester, no hand-held applications FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 60° .060" SIDE-PLATE TOP-PLATE FILE-GUIDE ANGLE FILING ANGLE ANGLE 85° 35° 90° TOOLS FOR FILING Part No. Description 90410 5/16"...
  • Page 67 Harvester Chain 3/4" SEMI CHISEL Kickback Reducing View Features Chain Type Gauge .122" Harvester, no hand-held applications FILING DEPTH-GAUGE TOP-PLATE SETTING CUTTING ANGLE 50° .070" SIDE-PLATE TOP-PLATE FILE-GUIDE ANGLE FILING ANGLE ANGLE 80° 30° 90° TOOLS FOR FILING Part No. Description 90410 5/16"...
  • Page 68 Square-Ground Filing WHO SHOULD PERFORM SQUARE GROUND FILING? Most chainsaw users will probably never need to use square ground chain, nor learn to perform square- ground filing. But in areas where the timber is larger and the guide bars used are longer, the performance advantages of square-ground chain can outweigh the fact that square-ground filing is more difficult and much less forgiving of filing errors.

  • Page 69: Square Ground Filing

    Square-Ground Filing FILE DIRECTION Oregon recommends that ® square-ground chain be filed from the outside in (in a down- ward direction). This leaves a better edge on the chromed cutting surfaces and makes it easier to keep the file’s posi- DOWNWARD FILING DIRECTION tion, and the resulting cutting...
  • Page 70 Square-Ground Filing GULLET FILING Approximately every 5th sharpening, clean out gullets by filing them back with a 7/32" round file. File gullets from the inside out (the side opposite from sharpening). Always leave a 1/8" shelf behind the gullet. BEFORE AFTER If not cleaned out regularly, the outer edge of your gul- lets will eventually prevent the working corners of your...

  • Page 71: Chain Troubleshooting

    Saw Chain SAW CHAIN TROUBLESHOOTING Most chain problems are caused by three things: incorrect chain tension, incorrect filing, and lack of lubrication. Look closely at your chain’s cutters, and compare them to the following illustrations. See the following pages for “Remedies” to these problems. PROBLEM edge Chain cuts slow, cuts rough, or won’t hold an...
  • Page 72 Saw Chain SAW-CHAIN TROUBLESHOOTING (CONTINUED) Low depth gauges. High depth gauges. Square or blunt Remedy: See E. Remedy: See F. depth gauges. Remedy: See G. REMEDIES A. File cutters back until all damage is removed. This remedy applies to pictures B.
  • Page 73 Saw Chain SAW-CHAIN TROUBLESHOOTING (CONTINUED) PROBLEM Cutters and/or tie straps wear heavily or break Excessive heel wear on Cracks under rear rivet Tie straps broken cutters and opposite holes on cutters and in the center. tie straps. opposite tie straps. Remedy: See I.
  • Page 74 Saw Chain SAW-CHAIN TROUBLESHOOTING (CONTINUED) REMEDIES (CONTINUED) J. Dress the tops of the guide bar’s rails square. If wear is minor, file the bottoms of tie straps and cutters square. This remedy If wear is extensive, replace the chain. applies to picture PROBLEM Drive links wear heavily or break Straight bottoms.
  • Page 75 Saw Chain SAW-CHAIN TROUBLESHOOTING (CONTINUED) REMEDIES: (K-P) K. Check your guide bar (grooves in bar’s body or nose have worn too shallow), and check your rim or spur drive sprocket (excessive wear is allowing drive links to bottom out). Replace bar, sprocket, or both. Sharpen drive-link tangs, as shown in the illustration on page 72, if possible.
  • Page 76 Saw Chain SAW-CHAIN TROUBLESHOOTING (CONTINUED) SHARPENING DRIVE-LINK TANGS Pointed drive-link tangs help remove chips and debris from your bar groove. Sharpen damaged tangs back to original shape with a round file. PROBLEM Chain has tight joints Tight joints are caused by either: loose tension, or an overworn drive sprocket.

  • Page 77: Chain Troubleshooting

    Saw Chain SAW-CHAIN TROUBLESHOOTING (CONTINUED) REMEDIES: (Q-R) Q. Chain with tight joints cannot be repaired. Replace the chain and maintain proper tension. Replace rim sprocket if worn. This remedy applies to pictures 25 . R. Replace the spur drive sprocket. Replace the chain. Always maintain proper tension and do not run chain on a worn drive sprocket.

  • Page 78: How Bar P/N's Work

    Guide Bars HERE’S HOW THE OREGON SAW BAR ® * 20 Length in Inches Gauge Oregon Bar Type ® 12" 0=.050" ® OWER ATCH YMMETRICAL PROCKET 14" RN= Symmetrical replaceable sprocket-nose 8=.058" 18" GN=Symmetrical replaceable 20" sprocket-nose with Guard Mate holes ®...
  • Page 79 Guide Bars PART-NUMBERING SYSTEM WORKS D009 Nose Size Mount Sprocket-nose Bars A218 A318 Nose Nose-sprocket A041 Pitch Tooth Count A061 A = 1/4" A064 B = .325" 10, 11, or 12 A074 D = 3/8" 9, 10, or 11 A095 E = 3/8"...

  • Page 80: Guide Bars

    Guide Bars OREGON GUIDE-BAR TERMS ® CHAIN LEAD-INS GROOVE RAILS NOSE-ATTACHMENT RIVET HOLES NOSE SPROCKET GREASE HOLE BAR-CHAIN MOUNT OIL HOLE NOSE SPROCKET NOSE RIVETS TAIL REPLACEABLE BAR BODY SPROCKET NOSE SOLID NOSE ARMOR TIP INTENZ BUILT-IN ® TENSIONING SYSTEM OREGON ®...

  • Page 81: Intenz ® Bars

    Guide Bars IMPORTANT INFORMATION ON OREGON INTENZ GUIDE BARS ® ® Intenz bars are those which have our patented Intenz ® ® chain-tensioning mechanism built right into the bar itself. Read and follow the information about Intenz bars on ® this page, and provided inside the packaging sleeves of Intenz ®...

  • Page 82: Bar Maintenance

    Guide Bars OREGON GUIDE-BAR MAINTENANCE ® ATTENTION: Oregon urges dealers, chainsaw users, ® and anyone who services guide bars to become familiar with proper bar-maintenance techniques and the possi- ble dangers which can result if bars are not properly maintained. WARNING Always turn off your saw’s engine before handling the chain, guide bar or...
  • Page 83 Guide Bars BASIC GUIDE-BAR MAINTENANCE (CONTINUED) ■ Turn nose sprocket while pumping grease until whole sprocket has new grease. Do not push dirt into the hole. ● ● ◆ ◆ ◆ With chain on the bar, hold a straightedge against the bar body and against a cutter side plate.
  • Page 84 Guide Bars HOW TO REPLACE OREGON POWER MATCH BAR NOSES ® NOTE Select a new Power Match ® nose with the correct pitch for your bar and chain. Reduced-kickback Double Guard replace- ® ment noses can be installed on any Power Match bar and can be used with the same ®...

  • Page 85: Power Match ® Noses

    Guide Bars POWER MATCH BAR NOSES ® (CONTINUED) 4. With the bar body, nose, and rivet solidly supported on a strong flat metal surface, peen the Power Match ® rivet’s head down with the flat end of a hammer. Do not hit the bar body, hit only the rivet head.
  • Page 86 Guide Bars HOW TO REPLACE NOSE SPROCKETS ON PRO-LITE , AND MICRO-LITE™ PRO BARS ® Select a new nose sprocket with the correct NOTE pitch for your bar and chain. 1. Drill or punch out heads from each of the nose-sprocket rivets. Punch out the remainder of the rivets.
  • Page 87 Guide Bars PRO-LITE /MICRO-LITE ® ™ NOSE SPROCKETS (CONTINUED) 4. Once fully inside the nose, hold the sprocket in place, then remove the tissue. 5. Align the sprocket’s inner- race holes with the holes in the bar nose. Insert rivets into each hole through the bar.

  • Page 88: Bar Troubleshooting

    Guide Bars GUIDE-BAR TROUBLESHOOTING Most guide bar problems occur in the bar rails, and are caused by four things: incorrect chain tension, lack of lubrication, and accidents or irregular operating techniques which pinch the rails or push the drive links sideways against the bar rails.
  • Page 89 Guide Bars GUIDE-BAR TROUBLESHOOTING (CONTINUED) Rails around the tip of solid-nose Rails along the bar body or bars are split at the bottom of the around the tip of sprocket-nose bar groove. Remedy: See V. bars show blue discoloration. Remedy: See W PROBLEM Bar sprocket-nose failure Chipped rails or excessive rail wear just behind the hard stellite alloy on...
  • Page 90 Guide Bars GUIDE-BAR TROUBLESHOOTING (CONTINUED) REMEDIES: (T-Y) T. Shallow grooves and wire edges are the result of inadequate lubrication, improper tension or normal wear over time. Use a flat file to square up the bar’s rails and remove wire edges promptly. Left alone, wire edges can break off, chipping away good rail material.
  • Page 91 Guide Bars GUIDE-BAR TROUBLESHOOTING (CONTINUED) REMEDIES: (T-Y) (CONTINUED) X. Such wear or chipping near the nose often accompanies heavy limbing, but can also be caused by loose chain tension. Invert the bar on the saw periodically to reduce such wear. On replaceable-nose bars with minor wear, install a new nose and file down the nose’s rails as shown on page 81, instruction number 5, for smooth chain...

  • Page 92: Terms And Tools

    Drive Sprockets OREGON SPROCKET TERMS ® RIM SPROCKET SPUR SPROCKET Clutch Drum Dust Cover Clutch Skirt Bore Spur Teeth OREGON SPROCKET-MAINTENANCE TOOLS ® GREASE GUN : 40469-A UMBER EACH : 31187-A PACK...

  • Page 93: Drive Sprockets

    Drive Sprockets OREGON RIM SPROCKETS WITH ® WEAR-DEPTH INDICATORS The free-floating rim is the component of a sprocket system which is replaceable. • Popular Oregon rims have wear-depth indicators. ® When sprocket wear reaches the depth of the indi- cator, it’s easy to see that it’s time to replace the rim.

  • Page 94: Sprocket Maintenance

    Drive Sprockets OREGON SPROCKET MAINTENANCE ® ATTENTION: Oregon ® urges dealers, chainsaw users, and anyone who services sprockets to become familiar with proper sprocket-maintenance techniques and the possible dangers which can result if sprockets are not properly maintained. WARNING Always turn off your saw’s engine before handling the chain, guide bar or sprocket.
  • Page 95 Drive Sprockets BASIC SPROCKET-MAINTENANCE TASKS (CONTINUED) ▲ ■ ▲ ■ Chain tension is especially important when the saw is tipped on its side during felling cuts. Loose chain (and rim-type sprocket, if used), will slide down and out of alignment with the bar. Loose chain tension is the leading cause of sprocket problems.

  • Page 96: Sprocket Troubleshooting

    Drive Sprockets SPROCKET TROUBLESHOOTING Most sprocket problems are caused by loose chain tension and failure to replace the sprocket or clutch drum when necessary. Sprockets are inexpensive. One worn inexpensive sprocket can rapidly damage an expensive chain and bar. Do not try to save money by running new chains on old sprockets.
  • Page 97 Drive Sprockets SPROCKET TROUBLESHOOTING (CONTINUED) Cracks or breakage on the clutch Obvious wear or discoloration drum. Remedy: See BB. around the outer circumference of the drum skirt. Remedy: See CC. Excessive wear on the inside surface of the drum skirt. Remedy: See DD. REMEDIES: (Z-DD) Z.

  • Page 98: How A Cutter Works

    Saw Chain HOW A CUTTER WORKS Understanding how cutters work can help you see why proper chain maintenance is so important. 1. The depth gauge rides on the wood and controls the depth at which the cutting corner bites in. 2.

  • Page 99: How To Order Replacement Chain

    Saw Chain HOW TO ORDER REPLACEMENT CHAIN For the best possible service, have the following four items of information ready for your Oregon dealer. ® 1. Your saw’s make and model. SAW MAN 1100-A 2. Your guide bar’s cutting length. Cutting length (called length) Overall length Your bar’s cutting length (or “called length”)

  • Page 100: Cutting In Cold Weather

    Saw Chain EAD THE WARNING ON PAGE Cutting frozen wood will cause rapid wear and possible breakage around the rear rivet hole of cutters. Follow the steps below to keep cold-weather wear to a minimum. OIL – use a lighter weight of bar-chain oil, or dilute bar- chain oil 25 percent with clean kerosene or diesel oil.

  • Page 101: Warranty

    THE OREGON ® CUSTOMER-SATISFACTION POLICY LIMITED WARRANTY Oregon (Oregon Cutting Systems Division, Blount, Inc.) ® warrants its products to be free from defects in materials and workmanship for as long as they are owned by the original retail purchaser. If you like our products, please tell your friends. If you are not satisfied with our products, for any reason, please tell us.
  • Page 102 Notes _____________________________ _____________________________ _____________________________ _____________________________ _____________________________ _____________________________ _____________________________ _____________________________ _____________________________ _____________________________ _____________________________ _____________________________ _____________________________ _____________________________ _____________________________ _____________________________ _____________________________ _____________________________ _____________________________ _____________________________ _____________________________ _____________________________...

This manual is also suitable for:

Qualcast pc40

Table of Contents