Assessments - 2, GPA: 4.5
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(SA1) ¦ FELLING A TREE (SA2) WARNING SA2 When you fell a tree, be sure to warn your neighboring workers of the danger. 1. Decide the felling direction considering the wind, Iean of the tree, location of heavy branches, ease of job after felling, and other factors . 2. While clearing the area around the tree, arrange a good foothold and retreat path. 3. Make a notch cut one-third of the way into the tree on the felling side. 4. Make a felling cut from the opposite side of the notch and at a level slightly higher than the bottom of the notch. ¦ LOGGING AND LIMBING WARNING 1. Always ensure your foothold as well as stability of the tree. 2. Be alert to the rolling over of a cut log. 3. Read the instructions in “For safe operation” to avoid kickback of the saw. Before starting work, check the direction of bending force inside the log to be cut. Always finish cutting from the opposite side .15. 8.Sawing SA3 SA4 SA5 of bending direction to prevent the guide bar from being caught in the cutaway. l Cutting an unpillowed log Saw down halfway, then roll the log over and cut from the opposite side. (SA3) l Cutting a pillowed log In the area A in the picture right above, saw up from the bottom one-third and finish by sawing down from the top. In the area B, saw down from the top one-third and finish by sawing up from the bottom. (SA4) l Limbing a felled tree WARNING Be alert to the spring back of a cut limb. First check which way the limb is bent. Then make a shallow cut into the compressed side to prevent the limb from being torn. Cut through from the tensed side. (SA5) l Pruning SA6 WARNING 1. Do not use an unstable foothold or a stepladder. 2. Do not overreach. 3. Do not cut above shoulder height. 4. Always use both hands to grip the saw. Cut up from the bottom, finish down from the top. (SA6) .16. 9.Maintenance WARNING MA1 MA4 MA3 MA2 Make sure to stop the engine before inspecting and/or servicing the unit. n DAILY MAINTENANCE SAW CHAIN It is one of the essential factors for smooth and safe operation to keep the cutters always in good condition. It’s time to reform the cutters when; 1. Sawdust has become powder-like. 2. You need extra force to saw in. 3. The cutaway tends to curve by itself. 4. The unit vibrates abnormally when sawing. 5. Fuel consumption has increased. REFORMING CUTTER 1. Wear work gloves. 2. Use 5/32 inch (3.9mm) round file. 3. Hold the guide bar and the saw chain firmly. 4. Place the file on the cutter and push straight forward while keeping the file angles and the height as shown in the picture. 5. Make sure that every cutter has the same length and the edge angles as shown in the picture. 6. After every cutter has been set, check the depth gauge and file it to the proper level as necessary. Do not file off beyond the specified level, or the cutting edge can be damaged very quickly. .17. 9.Maintenance MA5 GUIDE BAR 1. Remove sawdust in the bar groove and the oiling port. (MA5) 2. Grease the nose sprocket from the feeding port on the tip of the guide bar. (MA6) 3. Periodically turn over the guide bar when mounting it to the unit, in order to prevent partial wear. MA6 MA7 MA8 WARNING This saw is equipped with one of the following low kickback bar/chain combinations: RedMax Part Number Bar Size Guide Bar Saw Chain 14 (inch) G0011 91SG52X (35cm) For replacement, use only above bar and chain, or the following; OREGON BAR 14 inch S/N DOUBLE GUARD BAR, Mount code #A041. OREGON CHAIN 91SG AIR FILTER A clogged air filter can reduce the engine performance. Daily check the filter elements and tap off attached saw dust. When cleaning, use warm, soapy water and dry completely before installing. When the element is broken or shrunk, replace with a new one. (MA7) OILING PORT Dismount the guide bar and check the oiling port for blocking by sawdust. (MA8) GENERAL Inspect the entire unit for fuel leakage, Ioose fastenings, and damage to major parts, especially handle joints and guide bar mounting. When .18. 9.Maintenance MA9 MA10 .025 in 0.6 mm MA11 MA12 anything wrong be found, make sure to have it repaired before next usage. n MONTHLY MAINTENANCE FUEL FILTER When the engine runs short of fuel supply, check the fuel filter for blockage. (MA9) OIL STRAINER Drain the oil tank and remove the oil strainer located near the spark plug. Check the condition and clean if necessary. (MA10) SPARK PLUG Starting failure and mis-firing are often caused by a fouled spark plug. Periodically clean the spark plug and check that the spark gap is in the correct range. (MA11) For a replacement plug, use Champion RCJ- 6Y(noise-proof) or CJ-6Y, or NGK BPMR7A. DRIVE SPROCKET Periodically check the drive sprocket for wear and damage, and replace when the teeth have worn over 0.04 inch, or when any damage has been observed. (MA12) HANDLE MOUNTING JOINTS Inspect the handle mounting joints and replace when any adhered part is peeled off or a crack is observed on the rubber part. Also replace when the inside of the rear damper metal has wor...
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