Assessments - 1, GPA: 3
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For your own safety, do not remove the chain brake system. USA : ANSI Standard B175.1 - 2000 Safety Requirement for chain saws Canada : CSA Standard Z 62.1 CHAIN SAWS WARNING ANSI Standard B175.1 - 2000 stipulates that the brake shall stop the chain 0.12 seconds at an engine speed of 13500 r/min. It is the responsibility of the owner/operator to ensure that the brake is serviced, adjusted and tested strictly in accordance with the instructions as detailed herein in order to ensure that the brake performance is maintained in compliance with the Standard B175.1 - 2000. 9 CS-271T PREPARATION FOR USE WARNING Saw chain is sharp! Always wear gloves when handling assembly, otherwise serious personal injury may result. Bolt (A) Dimple (D) Recess (E) Front hole (C) Rearhole (B) Nut (F) Guide bar Kick Guard® KICK GUARD® TO BAR INSTRUCTIONS Tools Needed: Two 11 mm (7/16 in.) Wrenches. For saws with Kick Guard® P/N 2893201 and Symmetrical Low-Kick type (Double Guard) guide bars. 1. Install bolt (A) in rear hole (B) of Kick Guard® and through front hole (C) in guide bar. 2. IMPORTANT: Dimple (D) in Kick Guard® must engage recess (E) in guide bar. 3. Tighten nut (F) and bolt (A) using 11 mm (7/16 in.) wrenches until snug. Make certain Kick Guard® is flush against guide bar. 4. Tighten nut (F) 1/8 additional turn. 5. Check to make certain Kick Guard® is tight on guide bar. GUIDE BAR AND SAW CHAIN INSTALLATION/REMOVAL NOTICE • Move the chain brake lever (Front hand guard) fully rearward to remove or install the clutch cover to chain saw. 1. Remove spark plug lead. (See page 25) 2. Remove the clutch cover nut and remove clutch cover. 3. Remove bar and saw chain if necessary. See Clutch cover Brake lever (Front hand guard) A nut “Maintenance and Care” section for guide bar/ saw chain maintenance procedures. CS-271T 10 11 CS-271T 4. Mount guide bar on stud and slide toward clutch to make saw chain installation easier. Install chain with cutters on top of guide bar facing forward. 5. Unlock the chain brake, and install the clutch cover (and spiked bumper; option) over the guide bar stud. Ensure chain tension adjuster pin fits into the guide bar adjuster hole, brake band is positioned around clutch drum. Tighten clutch cover nut finger tight. 6. Turn saw over, and check brake band for correct position on clutch drum. If brake band is not in place around drum, remove cover, make sure brake is unlocked, and reinstall. Tighten clutch cover nut finger tight. WARNING Improper clutch cover assembly can result in serious injury, and will cause severe saw damage if unit is started. Never start or operate saw if brake band is not in place on clutch drum. Always check chain brake operation after replacing cover. Do not use saw if chain brake does not function properly. ADJUSTING CHAIN TENSION IMPORTANT Always loosen clutch cover nut before turning the chain tension adjuster, otherwise the clutch cover and tensioner will be damaged. 1. Remove spark plug lead. (See page 25) 2. Loosen a clutch cover nut, if necessary. 3. Hold the bar nose up, and turn the adjuster screw clockwise until chain fits snugly against underside of the bar. 4. Tighten a nut with the bar nose held up. 5. Pull the chain around the bar by hand. Loosen the adjustment if you feel tight spots. 6. When chain is properly tensioned, tighten clutch cover nut securely - 20 to 23 N·m (175 to 200 in. lb.). 7. Keep chain properly tensioned at all times. Adjusting screw Proper tension Improper tension Unlock chain brake Direction to tension the chain Guide bar adjuster hole Clutch cover Adjuster pin Nut Clutch Guide bar stud Spiked bumper; option FUEL AND LUBRICANT FUEL STATEMENT WARNING Alternative fuels, such as E-20 (20 % ethanol), E-85 (85 % ethanol) or any fuels not meeting above requirements are NOT approved for use in ECHO 2-stroke gasoline engines. Use of alternative fuels may cause performance problems, loss of power, overheating, fuel vapor lock, and unintended machine operation, including, but not limited to, improper clutch engagement. Alternative fuels may also cause premature deterioration of fuel lines, gaskets, carburetor and other engine components. Fuel Mix Chart 50 : 1 GASOLINE - Use 89 Octane [(R+M)/2] (mid grade or higher) gasoline or gasohol known to be good quality. Gasohol may contain up to 10 % Ethyl (grain) alcohol or 15 % MTBE (methyl teriary-butyl ether). Gasohol containing methyl (wood) alcohol is NOT approved. TWO-STROKE OIL - A two-stroke engine oil meeting ISO-L-EGD (ISO/CD 13738) and JASO M345-FC/FD Standards must be used. ECHO brand premium Power Blend X™ Universal 2Stroke Oil meets these standards. Engine problems due to inadequate lubrication caused by failure to use an ISO-L-EGD (ISO/CD 13738) and JASO M345-FC/FD certified oil, such as ECHO premium Power Blend X™, will void the two-stroke engine warranty. US. METRIC Gasoline Oil Gasoline Oil Gallons US. fl. oz. L mL 1 2 5 2.6 5.2 12.8 4 8 20 80 160 400 IMPORTANT • ECHO premium Power Blend X™ U...