JonseredメーカーGR41/50の使用説明書/サービス説明書
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GR41 GR50 RS44 RS52 Operator’ s manual (EP A) Please read the operator’ s manual carefully and make sure y ou understand the instructions before using the machine.
2 – English KEY T O SYMBOLS Symbols W ARNING! Clear ing saws , brushcutters and trimmers can be dangerous! Careless or incorrect use can result in serious or fatal injur y to the operator or others. Please read the operator’ s manual carefully and make sure y ou understand the instructions before using the machine .
English – 3 CONTENTS Contents Note the f ollowing bef ore star ting: Please read the operator’ s manual carefully . Long-term exposure to noise can result in permanent hear ing impairment.
4 – English INTR ODUCTION Dear customer! Congratulations on y our choice to buy a Jonsered product! Y our purchase giv es you access to prof essional help with repairs and ser vice whenev er this ma y be necessar y .
5 – English WHA T IS WHA T? What is what on the c learing saw? (RS44) 23 24 1 Blade 2 Grease fi ller cap , be vel gear 3 Be vel gear 4 Cutting attachment guard 5 Shaft 6 Handlebar 7 Throttle contro.
English – 6 WHA T IS WHA T? What is what on the c learing saw? (RS52) 1 Blade 2 Grease fi ller cap , be vel gear 3 Be vel gear 4 Cutting attachment guard 5 Shaft 6 Handlebar 7 Throttle control 8 St.
English – 7 GENERAL SAFETY PRECA UTIONS Impor tant P ersonal pr otective equipment HELMET A helmet should be worn if the trees being cleared are taller than 2 m. HEARING PRO TECTION W ear hearing protection that provides adequate noise reduction. EYE PRO TECTION Alwa ys wear approv ed ey e protection.
8 – English GENERAL SAFETY PRECA UTIONS Machine ′′ ′ ′ s safety equipment This section describes the machine ′ s saf ety equipment, its pur pose, and ho w checks and maintenance should be carried out to ensure that it operates correctly . See the ”What is what?” section to locate where this equipment is positioned on your machine .
English – 9 GENERAL SAFETY PRECA UTIONS Cutting attachment guar d This guard is intended to pre vent loose objects from being thrown to wards the operator . The guard also protects the operator from accidental contact with the cutting attachment. Check that the guard is undamaged and not cr ack ed.
10 – English GENERAL SAFETY PRECA UTIONS F or muf fl ers it is v er y impor tant that you f ollow the instructions on checking, maintaining and servicing your machine. See instructions under the heading Checking, maintaining and ser vicing the machine’ s safety equipment.
English – 11 GENERAL SAFETY PRECA UTIONS Cutting equipment This section describes how to choose and maintain your cutting equipment in order to: • Reduce the risk of blade thrust. • Obtain maximum cutting perf or mance. • Extend the lif e of cutting equipment.
12 – English GENERAL SAFETY PRECA UTIONS • Shar pen all edges equally to maintain the balance of the blade . Sharpening the saw b lade • See the cutting attachment packaging f or correct shar pening instructions.
English – 13 ASSEMBL Y Assembling the handlebar and thr ottle • Unscrew the knob from the handlebar mounting. • P osition the handlebar as shown. Fit the mounting components and tighten the knob lightly . • Fit the right handle to the handlebar using the screw , washer , slee ve and n ut as shown.
14 – English ASSEMBL Y • Fit the suppor t fl ange (F) on the output shaft. Make sure that the blade is centered b y fi tting it to the guide on the suppor t fl ange. • Screw the support cup (E) onto the output shaft threads (CA UTION! Left-hand thread).
English – 15 ASSEMBL Y • Tighten the trimmer head to a torque of 35-50 Nm (3.5-5 kpm). • T o dismantle, f ollow the instructions in the rev erse order . Fitting other guar ds and cutting attachments Fit the trimmer guard/combination guard (A) intended for use with the trimmer head/plastic blades.
16 – English ASSEMBL Y 2 Grass clearing The machine should be suppor ted in a har ness when grass clearing so that the cutting equipment is parallel to the ground. V ector harness Safety release Push down the red release le ver to release the machine from the harness.
English – 17 FUEL HANDLING Fuel safety Ne ver start the machine: 1 If you ha ve spilt fuel on it. Wipe off the spillage and allow remaining fuel to e vapor ate. 2 If you ha ve spilt fuel on yourself or y our clothes, change your clothes . W ash any part of your body that has come in contact with fuel.
18 – English FUEL HANDLING Mixing • Alwa ys mix the gasoline and oil in a clean container intended f or fuel. • Alwa ys star t by fi lling half the amount of the gasoline to be used. Then add the entire amount of oil. Mix (shake) the fuel mixture.
English – 19 ST AR TING AND ST OPPING Chec k before starting • Check the b lade to ensure that no cracks hav e formed at the bottom of the teeth or by the centre hole .
20 – English ST AR TING AND ST OPPING Starting Hold the body of the machine on the ground using y our left hand (CA UTION! Not with your f oot!). Grip the star ter handle, slowly pull out the cord with y our right hand until you f eel some resistance (the star ter pawls grip), now quic kly and powerfully pull the cord.
English – 21 W ORKING TECHNIQUES General w orking instructions Basic safety rules 1 Look around you: • T o ensure that people, animals or other things cannot aff ect your control of the machine .
22 – English W ORKING TECHNIQUES • W ork systematically to and fro across the area, clear ing a width of around 4-5 m on each pass. This exploits the full reach of the machine in both directions and gives the operator a con venient and v ar ied working area to work in.
English – 23 W ORKING TECHNIQUES • With groups of hardwood stems , fi rst clear around the group . Star t by cutting the stems high up around the outside of the group to a void jamming. Then cut the stems to the required height. Now try to reach in with the blade and cut from the centre of the group .
24 – English W ORKING TECHNIQUES Sweeping • The f an effect of the rotating cord can be used f or quick and easy clearing up. Hold the cord parallel to and abov e the area to be s wept and mov e the tool to and fro. • When cutting and s weeping you should use full throttle to obtain the best results.
English – 25 MAINTENANCE Carb uretor Y our Jonsered product has been designed and manuf actured to speci fi cations that reduce harmful exhaust fumes.
26 – English MAINTENANCE Low speed jet L T r y to fi nd the highest idling speed, tur ning the low speed needle L clockwise respectiv ely counter-clockwise. When the highest speed has been f ound, tur n the low speed needle L 1/ 4 turn counter-clockwise.
English – 27 MAINTENANCE Correctly adjusted carb uretor When the carburetor is correctly adjusted the machine will accelerate without hesitation and b urble a little at maximum speed. It is also impor tant that the cutting attachment does not rotate at idle.
28 – English MAINTENANCE Cleaning the air fi lter Remov e the air fi lter cover and tak e out the fi lter . Wash it clean in warm, soapy w ater . Ensure that the fi lter is dr y before re fi tting it. An air fi lter that has been in use f or a long time cannot be cleaned completely .
English – 29 MAINTENANCE Maintenance schedule The f ollowing is a list of the maintenance that must be perf or med on the machine. Most of the items are described in the Maintenance section. The user must only carr y out the maintenance and ser vice work descr ibed in this manual.
30 – English TECHNICAL D A T A T echnical data Note 1: Equivalent noise pressure le v el is calculated as the time-weighted energy total f or noise pressure le vels under v ar ious working conditions with the follo wing time distr ibution: 1/2 idle and 1/2 max.
English – 31 FEDERAL EMISSION CONTR OL W ARRANTY ST A TEMENT Y OUR W ARRANTY RIGHTS AND OBLIGA TIONS The EP A (The US Environmental Protection Agency), Environment Canada and Jonsered are pleased to e xplain the emissions control system warranty on y our 2001 and later small nonroad engine.
1 2 3 4 5 6 7 8 9 35-50 NM ~ 15 cm 6' "Clic" ~ 3,5 m 11 ' 7,0 m 23' 2,4-3,3 mm .095"-.130" 12 cm 5" T rimmy SII.
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