CRAFTOP NT3760 Owner'S Manual Download

Page: 1 / 53

Owner’s Manual
Chain Saw
NT3760

EXPERTS

IN EQUIPMENTS OF

GARDENING AND AGRICULTURE

ENGLISH
VERSION: 01-202106

Summary of Contents for NT3760

Page 1: ...Owner s Manual Chain Saw NT3760 EXPERTS IN EQUIPMENTS OF GARDENING AND AGRICULTURE ENGLISH VERSION 01 202106 ...

Page 2: ...enance instructions It will help you both to become more familiar with this chain saw and to recognize and avoid situations that could endanger you and others Careless or improper use may cause serious or even fatal injury If you have any question about your chain saw and this manual please contact CRAFTOP authorized dealer or service center for your area They always welcome your questions suggest...

Page 3: ...ate and local safety regulations standards and ordinances should be observed as well Do not sell lend or rent the machine without this owner s manual Always be sure to include this owner s manual together with the machine and make sure that anyone using it understands all the information and follows all the instruction contained in this manual Signs and symbols in this manual DANGER Texts with thi...

Page 4: ...of safety operation and maintenance the meanings of signs and symbols may be attached to or embossed on the machine CAUTION Chain saws can be dangerous Careless or incorrect use can result in serious or fatal injury to the operator or others Please read the instructions carefully and make sure you understand them before using the saw Always wear Approved protective helmet Approved hearing protecti...

Page 5: ... 3 Product overview General overview ...

Page 6: ... Specification Overall Package dimension L x W x H inch mm 17 3x10 4x12 440x265x305 Gross weight lbs kg 12 5 4 Engine Type Home use Displacement cc 36 3 Bore inch mm 1 496 38 Engine stroke type 2 stroke Power kw hp rpm 1 4 1 9 8000 Carburetor CRAFTOP Starter Manual Engine speed Idle rpm 3 200 200 Engine speed clutch engagement rpm 4 000 4 600 Engine speed wide open throttle rpm 13 500 without chai...

Page 7: ...3mm 1 45mm 0 157 4mm 70 30 10 0 05 1 3mm 16 406mm 18 457mm information Specifications descriptions and illustrations in this manual are as accurate as known at the time of publication but are subject to change without notice Safety features Chain brake and front hand guard Our chain saw is equipped with a chain brake that is designed to stop the chain immediately if you get a kickback The chain br...

Page 8: ...e position or if you put the saw down for a short time You should also apply the chain brake manually if there is a risk of the chain accidentally hitting anyone or anything close by To release the chain brake pull the front hand guard backwards towards the front handle The inertia activated chain brake increases your safety but there are certain factors to remember The way the chain brake is trig...

Page 9: ...at the idle setting when you release the handle A B Chain catcher The chain catcher is designed to catch the chain if it snaps or jumps off This should not happen if the chain is properly tensioned and if the bar and chain are properly serviced and maintained Right hand guard Apart from protecting your hand if the chain jumps or snaps the right hand guard stops branches and twigs from interfering ...

Page 10: ...uffler is designed to keep noise levels to a minimum and to direct exhaust fumes away from the operator WARNING The exhaust fumes from the engine are hot and may contain sparks which can start a fire Never start the saw indoors or near combustible material In areas with a hot dry climate there is a high risk of forest fires These areas are sometimes controlled by legislation and requirements that ...

Page 11: ...is section describes how to choose and maintain your cutting equipments in order to Reduce the risk of kickback Reduce the risk of the chain breaking or jumping Obtain maximum cutting performance Extend the life of cutting equipment Basic rules 1 Only use cutting equipment recommended by us Detail see the section of technical specification 2 Keep the chain cutting teeth properly sharpened Follow o...

Page 12: ...eplace it Use only the type of bar and chain recommended in the section of Technical specification Bar LENGTH inches cm NUMBER OF TEETH ON BAR TIP SPROCKET T Small number small tip radius low kickback CHAIN PITCH inches The spacing between the drive links of the chain must match the spacing of the teeth on the bar tip sprocket and drive sprocket PITCH D 2 NUMBER OF DRIVE LINKS The number of drive ...

Page 13: ...animals a minimum of 50 feet 15m from the work area The person who use this chain saw must be in good physical condition and mental health and not under the influence of alcohol and drugs Never use this chain saw when you are fatigued sick or upset If you feel tired take a break The components of this machine generate an electromagnetic field during operation which may interfere with some pacemake...

Page 14: ...ear snug fitting clothing a type of overalls long pants or chaps that contain pads of cut retardant material Avoid clothing that could get caught on branches or brush or moving parts of the machine Do not wear a loose fitting jacket scarf necktie jewelry flared or cuffed pants Tie up and confine long hair with a hair net or cap so it is secured above shoulder level Hands protection Always wear hea...

Page 15: ...tch off the engine by moving the stop switch to the STOP position before carrying out any checks or maintenance Regular cleaning is required Visual check Protective glasses or a visor must be worn CAUTION All chain saw service other than the items listed in the maintenance section of this manual should be performed by authorized service dealer or competent chain saw service personnel WARNING Only ...

Page 16: ...t with the tree This will cause kickback Rotational Kickback can occur when the moving chain contacts an object at the up per tip of the guide bar This contact can cause the chain to dig into the object which stops the chain for an instant The result is a lightning fast reverse reaction which kicks the guide bar up and back to ward the operator Pinch Kickback can occur when the wood closes in and ...

Page 17: ...ment or a chain that is not sharpened correctly The wrong combination of bar and chain can increase the risk of kickback Maintain good control of chain saw WARNING To reduce the risk of serious or even fatal injury to the operator or bystanders from loss of control never use the chain saw with one hand Always hold the chain saw firmly with both hands when the engine is running WARNING To reduce th...

Page 18: ...e can cause fire and serious burn injury or property damage Do not smoke or bring any fire or flame while handling fuel or while operating the chain saw Note that combustible fuel vapor may escape from the fuel system Mix and pour fuel in a well ventilated outdoor area on bare ground store fuel in a cool dry well ventilated place and use an approved marked container for all fuel purposes Wipe up a...

Page 19: ...f you are approached immediately stop the engine Place the machine on firm ground in an open and well ventilated area Make sure you have good balance and secure footing Hold the machine securely The saw chain must not contact the ground and all other obstructions because they may begin to run when the engine starts Your machine is designed to be operated by one person only Do not allow other perso...

Page 20: ...break in good time to avoid tiredness or exhaustion Work calmly and carefully in daylight conditions and only when visibility is good Stay alert so as not to endanger others To reduce the risk of serious or fatal injury from breathing toxic fumes ensure proper ventilation when working in trenches hollows or other confined locations To reduce the risk of accidents stop work immediately in the event...

Page 21: ... remove the clutch cover chain brake Take off the plastic shipping spacer if present 3 Fit the bar over the bar bolts Place the bar in its rearmost position Place the chain over the drive sprocket and in the groove on the bar Begin on the top side of the bar Make sure that the edges on the cutting links are facing forward on the top side of the bar 4 Fit the clutch cover and locate the chain adjus...

Page 22: ...chain brake nuts and the chain brake from the saw 2 Attach the bumper spike optional with the two screws as illustrated Fuel and fueling Fuel WARNING Gasoline is very flammable Avoid smoking or bringing any flame or sparks near fuel Make sure to stop the engine and allow it cool down before refueling the machine Select well ventilated outdoor bare ground for fueling and move at least 3 m 10 ft awa...

Page 23: ... avoid mixing up with gasoline or other containers 6 Indicate the contents on outside of container for easy identification NOTICE Do not mix more than maximum one month s supply of fuel If the saw is not used for some time the fuel tank should be emptied and cleaned Fueling WARNING Do not smoke or place warm objects in the vicinity of the fuel Select bare ground for fueling Always shut off the eng...

Page 24: ...e cutting attachments will be irretrievably damaged within a very short time Always check chain lubrication and the oil level in the tank before starting work For automatic and reliable lubrication of the chain and bar always use an environmentally compatible quality chain and bar lubricant with good adhesive characteristics NOTICE The service life of the chain and guide bar depends on the quality...

Page 25: ...fficient mixed fuel in the fuel tank 6 Check the chain oil level to make sure it is located at the proper position 7 Check there is no leakage of fuel and oil 8 Remove the chain guard scabbard 9 Make sure that the saw chain are not touching ground or any other obstacles 10 Double check and observe all safety precautions and instructions in this manual prior to starting the machine WARNING Do not u...

Page 26: ...ve the carburetor readjusted by your local authorized dealer or service center Start warm engine The WARM starting procedure is almost same as COLD starting except the choke knob position To start warm engine do not pull out the choke knob WARNING When starting the engine make sure that your body does not contact with the muffler A hot muffler can cause serious burns 1 If necessary fill fuel into ...

Page 27: ...ieve an apparent increase in power otherwise this could damage the engine NOTICE Open the throttle only when the chain brake is off Running the engine at high speeds with the chain brake engaged chain locked could quickly damage the shortlock and chain drive system clutch chain brake Check chain tension frequently A new saw chain must be tensioned more frequently than one that has been used alread...

Page 28: ...any task that you feel unsure of WARNING Before using a chain saw you must understand the effects of kickback and what causes it WARNING Before using a chain saw you must understand the difference between sawing with the top and bottom edges of the bar WARNING Engine exhaust is hot and it can cause serious burns Engine exhaust contains Carbon Monoxide CO a poison gas Breathing CO can cause unconsc...

Page 29: ...is tiring and often brings added risks such as icy ground unpredictable felling direction etc 3 Take great care when removing small branches and avoid cutting bushes i e cutting many small branches at the same time Small branches can be grabbed by the chain and thrown back at you causing serious injury 4 Check the area around you for possible obstacles such as roots rocks branches ditches etc in c...

Page 30: ...ne else is in this risk zone before or during felling B Felling direction The aim is to fell the tree in the best possible position for subsequent limbing and cross cutting You want it to fall on ground where you can move about safely The main point to avoid is letting the tree fall onto another tree It can be both difficult and dangerous to remove a tree in such a position Once you have decided w...

Page 31: ...n from contacting ground to prevent dulling of the chain Remove dirt stones loose bark nails staples and wire from the tree where cuts are to be made 1 To make the DIRECTIONAL CUT you begin with the TOP CUT CUT1 Cut through 1 4 of the diameter A of the tree Stand to the right of the tree and cut downwards at an angle of 45 2 Make the BOTTOM CUT CUT2 so that it finishes at the end of the TOP CUT CU...

Page 32: ...r The uncut section of the trunk is called the BREAKING STRIP c information The BREAKING STRIP act as hinges that control the felling direction of the falling tree 7 When the felling cut and directional cut are complete the tree should start to fall under its own weight or with the aid of a FELLING WEDGE or BREAKING BAR WARNING All control over the felling direction is lost if the BREAKING STRIP i...

Page 33: ...so that you will be clear of the tree or branch when it springs free Make one or more cuts at or near the BREAKING POINT Make as many cuts of sufficient depth as necessary to reduce the tension and make the tree or branch break at the BREAKING POINT WARNING Never cut straight through a tree or branch that is in tension Cutting a fallen tree Bucking information Always use full throttle when cutting...

Page 34: ...oward operator Use a sawhorse to cut small logs Never allow another person to hold the log while cutting and never hold the log with your leg or foot Do not cut in an area where logs limbs and roots are tangled such as in a blown down area Drag the logs into a clear area before cutting by pulling out exposed and cleared logs first Type of cutting used for bucking Overcutting begins on the top side...

Page 35: ...uck by the branch or the saw when the tension in the wood fibers is released Keep a clear work area Frequently clear branches out of the way to avoid tripping over them A LIMBING Always limb a tree after it is cut down Only then can limbing be done safely and properly Leave the larger limbs underneath the felled tree to support the tree as you work Start at the base of the felled tree and work tow...

Page 36: ...equired System Component Maintenance Procedure Complete machine Visual inspection Condition leak Clean Throttle trigger Choke knob Stop switch Function test Chain brake Function test Have it inspected by dealer Air filter Inspect Clean Replace Automatic Oiler Oil pump Inspect Replace Oil filter Inspect Replace Oil tank Clean Carburetor Inspect Adjust Fuel filter Inspect Replace Fuel tank Clean Saw...

Page 37: ...ark plug to prevent accidental starting NOTICE SPECIAL TRAINING IS REQUIRED to service and repair chain saws This is especially true of chain saw safety equipment If your chain saw fails any of the checks described below take it to your authorized dealer When you buy any of our products we guarantee the availability of professional repairs and service If the retailer who sells your saw is not a au...

Page 38: ... should stop immediately Throttle lock 1 Make sure the throttle control is locked at the idle setting when you release the throttle lock 2 Press the throttle lock and make sure it returns to its original position when you release it 3 Check that the throttle control and throttle lock move freely and that the return springs work properly 4 Start the saw and apply full throttle Release the throttle ...

Page 39: ...s and maintenance measures described in this section above If your chain saw fails any of these checks contact your authorized dealer or service center to get it repaired Sharpening your chain and adjusting raker clearance WARNING The risk of kickback is increased with a badly sharpened chain A General information on sharpening cutting teeth Never use a blunt chain When the chain is blunt you have...

Page 40: ...ack chain is difficult to sharpen correctly 2 Always file cutting teeth from the inside face reducing the pressure on the return stroke File all the teeth on one side first then turn the saw over and file the teeth on the other side 3 File all the teeth to the same length When the length of the cutting teeth is reduced to 4mm 0 16inch the chain is worn out and should be replaced C General advice o...

Page 41: ...the chain around the bar If the chain does not rotate it is too tight If too loose the chain will sag below the bar Tensioning the chain WARNING A slack chain may jump off and cause serious or even fatal injury The more you use a chain the longer it becomes It is therefore important to adjust the chain regularly to take up the slack Check the chain tension every time you use or refuel the chain sa...

Page 42: ...y 2 Check that the groove in the edge of the bar is clean Clean if necessary 3 Check that the bar tip sprocket turns freely and that the lubricating hole in the tip is not blocked Clean and lubricate if necessary information If the chain lubrication system is still not working after carrying out the above measures you should contact your service agent Lubricating the bar tip sprocket Lubricate the...

Page 43: ...Basic information WARNING The saw chain must not move at idle speed otherwise serious personal injury may result Periodic carburetor adjustment may be necessary to ensure saw chain does not move at idle speed NOTICE Carburetor adjustments other than idle speed must be performed by an authorized dealer or service center The carburetor governs the engine speed via the throttle Air fuel are mixed in ...

Page 44: ...roblems or too low working speed Starter device WARNING When the recoil spring is assembled in the starter housing it is in tensioned position and can when treated carelessly pop out and cause injuries Always be careful when changing the recoil spring or the starter cord Always wear safety goggles for eye protection A Changing a broken or worn starter cord 1 Loosen the screws that hold the starter...

Page 45: ...el consumption Clean the air filter daily or more often if the air is exceptionally dusty in the working area 1 Pull out the choke knob to CLOSE position This prevents dirt from entering into the carburetor throat when the air filter is removed 2 Brush accumulated dirt from air filter area 3 Disassemble the air filter by removing the cylinder cover and unscrew the filter 4 Unscrew the air filter h...

Page 46: ...fler is designed in order to reduce the noise level and to direct the exhaust gases away from the operator The exhaust gases are hot and can contain sparks which may cause fire if directed against dry and combustible material Some mufflers A are equipped with a spark arrester mesh B If your chain saw has this type of muffler you should clean the mesh at least once a week This is done with a wire b...

Page 47: ...manding conditions A dirty or blocked cooling system results in the saw overheating which causes damage to piston and cylinder Daily maintenance 1 Check that all the components of the throttle control operate safely i e throttle lock throttle lever and start throttle lock 2 Clean the chain brake and check its function according to the instructions Make sure that the chain catcher is undamaged Othe...

Page 48: ...n if necessary 9 Test the stop switch to be sure it shuts off the engine Weekly maintenance 1 Check that the AV elements are not soft or torn 2 Lubricate the clutch drum bearing 3 File off burrs if any on the sides of the bar 4 Clean the spark plug and check the gap The correct gap A is 0 35 0 5mm 0 014 0 02inch A 5 Check the starter and the recoil spring Clean the fins on the flywheel 6 Clean the...

Page 49: ...pring for wear 3 Clean the outside of the carburetor 4 Check the fuel filter Change if necessary 5 Flush the inside off the fuel tank with gasoline 6 When the engine speed is not stable check the oil filter If the white filter element become grey or dark color change the oil filter 7 Flush the inside of the oil tank with gasoline 8 Check all cables and connections ...

Page 50: ...buretor diaphragms sticking together 4 Remove the saw chain and guide bar clean them completely and spray with corrosion inhibiting oil 5 Completely clean the machine pay special attention to the cylinder fins and air filter 6 Pour a small amount of clean motor oil into spark plug hole pull starter and crank the engine until piston reaches TOP DEAD CENTER 7 Install the spark plug but do not connec...

Page 51: ...does not crank Internal engine problem Ask your local dealer Engine runs Dies or accelerates poorly 1 Air filter dirty 2 Fuel filter dirty 3 Fuel vent blocked 4 Spark plug 5 Carburetor 6 Cooling system blocked 7 Exhaust port spark arrestor screen blocked 1 Clean or replace 2 Clean or replace 3 Clean 4 Clean and adjust replace 5 Adjust 6 Clean 7 Clean Engine will not start or will run only a few se...

Page 52: ...orrect fuel mixture Chain moves at idle speed 1 Idle speed requires adjustment 2 Clutch requires repair 3 See the section of carburetor adjustment 4 Contact an authorized dealer or service center information If your chain saw seems to need further service please consult with your local authorized dealer or service center ...

Page 53: ...WWW CRAFTOP COM ...

Search results

Summary of Contents for NT3760

Reviews:

Related manuals for NT3760

Brands by name

Popular brands

CRAFTOP NT3760, Owner'S Manual

Search results

Summary of Contents for NT3760

Reviews:

Related manuals for NT3760

Brands by name

Popular brands