Manuale d’uso / di manutenzione del prodotto UC4550A del fabbricante Makita
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1 ENGLISH (Original instructions) INSTRUCTION MANUAL DOUBLE INSULA T ION IMPORT ANT : Read Before Using. Electric Chain Saw UC3050A UC3550A UC4050A UC4550A UC3051A UC3551A UC4051A UC4551A 014371.
2 ENGLISH (Orig inal instruct ions) SPECIFICA TIONS Model UC3050A UC3051A UC3550A UC3551A UC4050A UC4051A UC4550A UC4551A Max. chain speed 14.5 m/s (880 m/min) Bar length 300 mm 350 mm 400 mm 450 mm Cutting length 260 mm 320 mm 355 mm 415 mm S tandard guide bar Guide bar type S procket nose bar T ype 91PX Pitch 3/8" S tandard saw chain No.
3 GEA005-3 General Power T ool Safety W arnings W ARNING Read all safety w arnings and all instructions. Failure to follow the w arnings and instructions may result i n electric shock, fire and /or serious injury . Save all warnings and instructions for future reference.
4 tool’s operation. If dam aged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools. 23. Keep cutting tools sharp and clean. Properly maintained cutting tools w ith sharp cutting edges are less likely to bind and are ea sier to control.
5 014316 − Do not overreach and do not cut abov e shoulder height. This helps prevent unintended tip co ntact and enables better control of the ch ain saw in unexpected situations. − Only use replacement bars and chains specified by the manufacturer .
6 using the saw in the open air , ensure that the cable employed is intended for open-air use and is rat ed accordi ngly . 3. Keep the cord away from the cutting area and to position cord so that i t will not be caught on branches, and the like, during cuttin g.
7 Safety features 1. Always check that the safe ty features are in working order before st arting work. Do not use the chain saw if the safety features are not working properly . − Chain brake: The chain saw is fitted with a chain brake w hich brings the saw chai n to a standstill w ithin a fraction of a second .
8 DESIGNA TION OF P ARTS (Nut model: the sprocket co v er is tightened by nuts.) For Model UC3050A, UC3550A , UC4050A, UC4550A 1 2 3 4 5 6 9 10 8 014372 (Lever model: the sprocket cover is tightened by lever .
9 (For all models) 14 12 11 15 13 17 16 18 014514 Cord hook 1 2 3 4 5 6 7 9 8 10 11 12 13 Spike bumper 18 14 15 16 17 Rear handle Switch trigger Oil filler cap Front handle Front hand guard Guide bar .
10 T o remove the saw chain , perform the follow ing steps: 1. Loosen the sprocket cover . 2. (For nut models) T urn the chain adjusting screw counterclockwise to release the saw chain tension. (For lever models) T urn the adjusting dial to "- " direction to loosen the saw chain tension.
11 Adjusting saw chain tension The saw chain may become loose after many hours of use. From time to time check the saw chain tension before use. 1. Loosen the sprocket cover lightly . 2. Keep lifting up the guide bar tip sligh tly to keep the guide bar hori zontal.
12 Reclaimend oil 006921 Lubricate the saw chain and bar using biologicall y degradable saw chain oil with an adhesion agent. The adhesion agent in the saw chain oil prevents the oil from being thrown off the saw excessivel y quickly . Mineral oils must not be used, as they ar e harmful to the environment.
13 Checking the chain brake NOTE: • If the chain saw fails to star t, check whether the chain brake is r eleased. T o release the chain brake, pull the hand guard backw ards firmly until you feel it engage. 1 2 3 014387 1 3 2 014439 Check the chain brake as follow s : 1.
14 Bucking 1 014389 For bucking cuts, rest the spike bum per shown in the figure on the w ood to be cut. With the saw cha in running, saw into the wood, using the rear handle to raise the saw and the front one to guide it. Use the spike bumper as a pivot.
15 (3) Th e base of t he trunk is free of forei gn objects, ro ots and ranche s; (4) No persons or object s are present over a distance of 2 1/2 tree lengths in th e direction in which the tree will fall.
16 Sharpening the saw chain CAUTION : • Always withdraw the mains plug and wear safety gloves when perform ing work on the saw chain. 006924 Sharpen the saw chain when: − Mealy sawdust is produced.
17 30 006928 − After sharpening the chain, check the height of the depth gauge using the chain gauge tool (op tional accessory). 014344 − Remove any projecting material , however small, with a special flat file (optional accessory ). − Round off the front of the depth gauge again.
18 Replacing carbon br ushes 1 001 1 45 Remove and check the carbo n brushes regularly . Replace when they w ear down to the limit mark. Keep the carbon brushes clean and free to slip in the holders. Both carbon brush es should be replaced at the same time.
19 TROUBLE SHOOTING Before asking for rep airs, conduct y our own inspection first. If you find a problem that is no t explained in the manual, do not attempt to dismantle the tool. Instead, ask Makita Authorized Service Cen ters. No oil on the chain.
20 Makita Corporation www.makita.com 885287-3.
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 Makita UC4550A 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 Makita UC4550A - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Makita UC4550A imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Makita UC4550A ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Makita UC4550A, 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 Makita UC4550A.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Makita UC4550A. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Makita UC4550A 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.
