Assessments - 1, GPA: 3
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Facilidade de uso
0.02 in (0.5 mm) since this would reduce the life of the chain. You can use a gauge (“Special Accessories” ) to check the depth of the wear marks on sprockets. It is best to use two saw chains in rotation with one sprocket. Use only original STIHL chain sprockets to ensure correct operation of the chain brake. Disassembly 142BA048 LA : Pull off the spark plug boot and unscrew the spark plug (1) . 142BA049 LA : Push the locking strip (2) – wide end first – into the cylinder and then turn it 180° clockwise. : Rotate clutch clockwise as far as stop. 46 MS 200 English / USA 144BA017 LA Assembly : Push needle cage and chain sprocket onto the crankshaft. : Screw the clutch onto the crankshaft (counterclockwise). : Tighten down the clutch firmly. : Remove locking strip from the cylinder. Fit the spark plug and tighten it down firmly. : Release clutch hexagon clockwise (left- hand thread). : Refit boot on the spark plug. : Unscrew the clutch. 144BA018 LA : Pull the chain sprocket (3) and needle cage (4) off the crankshaft. : Clean the crankshaft stub and needle cage, and lubricate with STlHL grease (“Special Accessories”). MS 200 47 English / USA Maintaining and SharpeningSaw Chain Correctly sharpened chain A properly sharpened chain slices through wood effortlessly and requires very little feed pressure. Do not work with a dull or damaged chain as it will increase the physical 3/8 689BA020 KN A B 689BA021 KN effort required, produce unsatisfactory results and a higher rate of wear. : Clean the chain. : Check the chain for cracks in the links and damaged rivets. : Replace any damaged or worn parts The chain pitch (e.g. 3/ 8" ) is marked on A = Filing angle the depth gauge end of each cutter. B = Side plate angle Use only special saw chain sharpening files. Other files have the of the chain and match the new parts to the shape and size of the wrong shape and cut. Chain type Angle (°) original parts. It is absolutely essential to comply with the angles and dimensions specified below. If the saw chain is incorrectly sharpened – and in particular if the depth gauge is set too low – there is a risk of increased kickback of the chainsaw, with resulting risk of injury. Select file diameter according to chain pitch – see table “Sharpening Tools”. You must observe certain angles when resharpening the chain cutter. AB Rapid-Micro (RM) Rapid-Super (RS) Picco-Micro (PM/PMN) 30 30 30 85 60 85 Cutter shapes: Micro = Semi-chisel Super = Full chisel The specified angles A and B are obtained automatically if the recommended files or sharpening tools and correct settings are used. 48 MS 200 English / USA Furthermore, the angles must be the For checking angles same on all cutters. If angles are uneven: Chain will run roughly, not in a Use a STlHL filing gauge* (see table "Sharpening Tools" ). This is a universal tool for checking the filing and side plate angles, depth gauge setting and cutter 90° 60° 85° 70° 80° 0° 35° 10° 30° 689BA022 KN straight line, wear quickly and finally break. 90° 689BA018 KN 689BA025 KN 689BA043 KN As these requirements can be met only length. It also cleans the guide bar after sufficient and constant practice: groove and oil inlet holes. : Use a file holder* A file holder must be used for manual File correctly resharpening (see table "Sharpening : Hold the file horizontally (at right Tools"). The correct filing angles are : Select sharpening tools according angle to side of guide bar) and file marked on the file holder. to chain pitch. according to the angles marked on : Clamp the bar in a vise if necessary. the file holder. Rest the file holder on the top plate and depth gauge. : Lock the chain – push hand guard forward. : To rotate the chain – pull hand guard against handle. : Sharpen chain frequently, take away as little metal as possible – two or three strokes of the file are usually enough. * see “Guide to Using this Manual” * see “Guide to Using this Manual” MS 200 49 English / USA : Always file from the inside to the Depth gauge setting Lowering depth gauges outside of the cutter. The depth gauge setting is reduced : The file only sharpens on the when the chain is sharpened. forward stroke – : Use a filing gauge to check the 689BA023 KN a lift the file off the cutter on the backstroke. setting every time you sharpen the chain. : Avoid touching the tie straps and drive links with the file. : Rotate the file at regular intervals while filing to avoid one-sided wear. : Use a piece of hardwood to remove 689BA047 KN1 : Place a filing gauge (1) that matches the chain pitch on the The depth gauge determines the height burrs from cutting edge. : Check angles with the filing gauge. at which the cutter enters the wood and thus the thickness of the chip removed. All cutters must be the same length. If the cutters are not the same length, they will have different heights. This makes the chain run roughly and can cause it to break. Specified distance or setting between depth gauge and cutting edge = a: This sett...