JonseredメーカーGR50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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ですが、ユーザガイドが果たす重要な役割の一つは、Jonsered GR50に関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちJonsered GR50デバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
