Manuale d’uso / di manutenzione del prodotto UT74121A del fabbricante Homelite
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OPERA T OR’S MANUAL 356 mm (30 f t.) 33cc Chainsaw CSP3314 Model No. UT74121A Y our ne w chainsaw has been engineered and manuf actured to Homelite’s high standard f or dependability , ease of operation and operator saf ety . Properly cared fo r , it will give y ou years of rugged, trouble-free perf ormance.
UK - Page 2 Look for this symbol to point out import ant safety precautions. It means attention!!! Y our safety is involved. W ARNING: Carefully read through this entire operator’s manual before using your new saw. Pay close attention to the Safety Rules and all Safety Alert Symbols including Danger, Warning and Caution.
UK - Page 3 W ARNING: The warnings, labels and instructions found in this section of the operator’s manual are for your safety. Failure to follow all instructions may result in serious personal injury. Safe operation of this tool requires that you read and understand this operator’s manual and all labels affixed to the tool.
UK - Page 4 GENERAL SAFETY RULES KEEP ALL P ARTS OF YOUR BODY a wa y from the sa w chain when the engine is running. AL W A YS CARR Y THE CHAINSA W WITH THE ENGINE STOPPED AND THE BRAKE ENGAGED, the guide bar and saw chain to the rear , and the silencer a w a y from your body .
UK - Page 5 W ARNING: The warnings, labels and instructions found in this section of the operator’s manual are for your safety. Failure to follow all instructions may result in serious personal injury. GENERAL PRECAUTIONS DO NOT CUT VINES and/or small underbrush (less than 76 mm (3 in.
UK - Page 6 PUSH AND PULL The reaction force is always opposite to the direction the chain is moving. Thus, the operator must be ready to control the PUL L when cutting on the bottom edge of the bar and the PUSH when cutting along the top edge.
UK - Page 7 SYMBOLS Important: Some of the following symbols may be used on your tool. Please study them and learn their meaning. Proper interpretation of these symbols will allow you to operate the tool better and more safely. SYMBOL NAME EXPLANATION Indicates danger, warning or caution.
UK - Page 8 Weight - No bar, chain, fuel or oil ............................................................................................ .................. 4.4 kg (9.7 lbs.) Fuel tank capacity ......................................................
UK - Page 9 Fig. 2 FRONT HAND GUARD/CHAIN BRAKE FRONT HANDLE CYLINDER COVER THROTTLE LOCK BUTTON TRIGGER RELEASE REAR HANDLE THROTTLE TRIGGER ON/OFF SWITCH FUEL MIX CAP CHAIN OIL CAP STARTER/FAN HOUSI.
UK - Page 10 OPERA TION W ARNING: The warnings and instructions in this section of the operator’s manual are for your safety and to prevent serious personal injury. UNDERSTANDING YOUR CHAINSAW SAFETY DEVICES SAFE-T-TIP ANTI-KICK-BACK NOSE GUARD See Figure 4.
UK - Page 11 RUN POSITION BRAKE POSITION Fig. 5 CHAIN BRAKE Chain brakes are designed to quickly stop the chain from rotating. When the chain brake lever/hand guard is pushed towards the bar, the chain should stop immediately. A chain brake does not prevent kick-back.
UK - Page 12 W ARNING: Always turn off engine before refuelling. Never add fuel to a machine with a running or hot engine. Move at least 9 m (30 ft.) from refuelling site before starting the engine. DO NOT SMOKE! Failure to heed this warning can result in possible personal injury.
UK - Page 13 CHAIN OIL SYSTEM See Figure 9. Use HOMELITE Bar and Chain Oil. It is designed for chains and chain oilers, and is formulated to perform over a wide temperature range with no dilution required. Chainsaw should use approximately one tank of oil per tank of fuel.
UK - Page 14 Fig. 14 FULL CHOKE CHOKE LEVER HALF CHOKE RUN POSITION Fig. 15 THROTTLE TRIGGER THROTTLE LOCK BUTTON TRIGGER RELEASE Fig. 16 Fig. 17 THROTTLE TRIGGER TRIGGER RELEASE Fig. 18 RUN POSITION STARTER GRIP STARTING A COLD ENGINE: 3. Move the chain brake to the BRAKE position.
UK - Page 15 8. Pull ST AR TER until engine attempts to star t. Slowly pull the starter gr ip out f or a short distance until you f eel the starter engage, then briskly pull str aight up . Do not pull to the end of the rope; this may damage the star t er .
UK - Page 16 PREPARING FOR CUTTING PROPER GRIP ON HANDLES See Figures 20 and 21. Refer to “Specific Safety Rules – Safety Apparel” earlier in this manual for appropriate safety equipment. Wear non-slip gloves for maximum grip and protection.
UK - Page 17 BASIC OPERATING/CUTTING PROCEDURES Practise cutting a few small logs, using the following technique to get the “feel” of using the saw before you begin a major sawing operation. 1. T ake the proper stance in front of the wood with the saw idling.
UK - Page 18 W ARNING: Weather conditions and altitude may affect carburation. Do not allow bystanders close to the chainsaw while adjusting the carburettor. ADJUSTING IDLING SPEED If the engine starts, runs, and accelerates but will not idle, turn the idling speed screw “ T ” clockwise to increase idling speed.
UK - Page 19 FELLING TREES HAZARDOUS CONDITIONS See Figure 29. OPERA TION W ARNING: Do NOT fell trees near power lines or near buildings which could be struck by falling limbs or the tree itself.
UK - Page 20 PROPER PROCEDURE FOR TREE FELLING See Figure 30. 1. Pick your escape route (or routes in case the intended route is blocked). Clear the immediate area round the tree and make sure there are no obstructions in your planned path of retreat.
UK - Page 21 3. Cut a notch about one-third the diameter of the trunk in the side of the tree. Make the notch cuts so they intersect at right angles to the line of fall. This notch should be cleaned out to leave a straight line. To keep the weight of the wood off the saw, always make the lower cut of the notch before the upper cut.
UK - Page 22 REMOVING BUTTRESS ROOTS A buttress root is a large root extending from the trunk of the tree above the ground. Remove large buttress roots before felling. Make the horizontal cut into the buttress first, f ollow ed by the v er tical cut. Remove the resulting loose section from the work area.
UK - Page 23 BUCKING LOGS UNDER STRESS Make the first bucking cut one-third of the way through the log and finish with a two-thirds cut on the opposite side. As you cut the log, it will tend to bend. The sa w can become pinched or hung in the log if you make the first cut deeper than one-third of the diameter of the log.
UK - Page 24 LIMBING AND PRUNING See Figure 39. Work slowly, keeping both hands on the saw with a firm grip. Maintain secure footing and balance. Keep the tree between you and the chain while limbing. Cut from the side of the tree opposite the branch you are cutting.
UK - Page 25 ASSEMBLING THE BAR AND CHAIN DANGER: Never start the engine before installing the guide bar, chain, drive case cover, and clutch drum. Without all these parts in place, the clutch may fly off or explode, exposing the user to possible serious injury.
UK - Page 26 6. Lay out the saw chain in a loop and straighten any kinks. The cutters should face in the direction of chain rotation. If the y f ace back wards, turn the loop ov er . See Figure 45 . 7. Place the chain drive links into the bar groove. See Figure 46.
UK - Page 27 11. Replace the outer guide bar plate, ensuring that the bar pin groove is at the bottom with the upper and lower edges angled away from the guide bar. 12. Replace the clutch cover and bar mounting nuts. 13. Tighten the bar mounting nuts finger tight only.
UK - Page 28 ADJUSTING THE CHAIN TENSION See Figures 52, 53 and 54. W ARNING: Never touch or adjust the chain while the motor is running. The saw chain is very sharp. Always wear protective gloves when performing maintenance on the chain. 1. Stop the engine before setting the chain tension.
UK - Page 29 Fig. 55 Fig. 56 RAKER CLEARANCE INSPECT DRIVE SPROCKET CUTTING CORNER SIDE PLATE DEPTH GAUGE TOE GULLET HEEL RIVET HOLE TOP PLATE SHARPENING THE CUTTERS See Figures 57 to 62. Be careful to file all cutters to the specified angles and to the same length, as fast cutting can only be obtained when all cutters are uniform.
UK - Page 30 Fig. 60 Fig. 61 Fig. 59 CHECK FOR WEAR OR DAMAGE LEFT-HAND CUTTERS RIGHT-HAND CUTTERS Fig. 62 CAUTION: A dull or improperly sharpened chain can cause excessive engine speed during cutting which may result in severe engine damage. W ARNING: Improper chain sharpening increases the potential of kick-back.
UK - Page 31 TOP PLATE FILING ANGLE CORRECT 30° – file holders are marked with guide marks to align file properly to produce correct top plate angle. LESS THAN 30° – for cross cutting. MORE THAN 30° – feathered edge dulls quickly.
UK - Page 32 RESTORE ORIGINAL SHAPE BY ROUNDING THE FRONT Fig. 68 LUBRICATING HOLE Fig. 67 MAINTAINING THE GUIDE BAR See Figure 68. MAINTAINING THE SAFE-T-TIP NOSE GUARD See Figures 69 and 70. MOUNTING SCREW SAFE-T-TIP Fig. 69 MAINTENANCE Every week of use, reverse the guide bar on the saw to distribute the wear for maximum bar life.
UK - Page 33 MOUNTING THE SAFE-T-TIP® NOSE GUARD See Figures 69 and 70. 1. Mount the SAFE-T-TIP on the bar nose. 2. Fit the locking rivet or tab in the recessed hole in the guide bar. 3. Tighten the screw with your finger. 4. From the finger tight position, tighten the screw an additional three-quarters of a turn using a spanner.
UK - Page 34 CLEANING THE ENGINE Clean the cylinder fins and flywheel fins with compressed air or a brush periodically. Dangerous overheating of the engine may occur due to impurities on the cylinder. W ARNING Never run the saw without all the parts, including the drive case cover and starter housing, securely in place.
UK - Page 35 CLEANING THE SPARK ARRESTING SI- LENCER The silencer is equipped with a spark arrester screen. A faulty spark arrester screen can create a fire hazard. Through normal use the screen becomes dir ty and should be inspected weekly and cleaned as required.
UK - Page 36 Length of Bar Guide Bar Part Number Chain Part Number 305 mm (12 in.) UP08695 UP08692 356 mm (14 in.) UP08696 UP08693 406 mm (16 in.) UP08698 UP08694 PROBLEM POSSIBLE CAUSE SOLUTION Engine will not start. (Make sure ignition switch is in start position “I”.
UK - Page 37 PROBLEM POSSIBLE CAUSE SOLUTION Engine starts, runs, and accelerates but will not idle. Bar and chain running hot and smoking. Engine starts and runs, but chain is not rotating. Carburettor requires adjustment. 1. Chain oil tank empty. 2.
UK - Page 38 W ARRANTY EC DECLARATION OF CONFORMITY According to machinery directive 98/37/EC and EMC directive 89/336/EEC - We, Homelite Consumer Products Inc.
UK - Page 39 NOTES.
983000-209 2-03 Ryobi T echnologies GmbH Itterpark 7 D-40724 Hilden Germany T el.: +49 (0)2103 / 29 58 0 F ax : +49 (0)2103 / 29 58 29 inf o@r yobi-r tg.de Ryobi T echnologies Customer Services Anvil House T uns Lane Henley-on-Thames RG9 1SA UK Homelite / R.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Homelite UT74121A è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Homelite UT74121A - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Homelite UT74121A imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Homelite UT74121A ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Homelite UT74121A, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Homelite UT74121A.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Homelite UT74121A. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Homelite UT74121A insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
