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  OWNER’S MANUAL                                                                                                         

                                                                           

 

 
5.FUEL AND CHAIN OIL 
FUEL 

 
 

 

Gasoline is very flammable. Avoid smoking or 
bringing any flame or sparks near fuel. Make sure 
to stop the engine and allow it cool before refueling the unit. Select 
outdoor bare ground for fueling and move at least 3m away from the 
fueling point before starting the engine.   

 Please use an anti-oxidant added quality oil expressly labeled for 

air-cooled 2-cycle engine use. (JASO FCGRAD OIL or ISO EGCGRADE) 

 Do not use BIA or TCW (2-stroke water-cooling type) mixed oil. 

 

Exhaust emission are controlled by the fundamental engine 
parameters and components (eq., carburetion, ignition timing and 
port timing) without addition of any major hardware or the 
introduction of an inert material during combustion. 

 These engines are certified to operate on unleaded gasoline. 

 Make sure to use gasoline with a minimum octane number of 89 RON 

(USA/Canada:87AL) 

 If you use a gasoline of a lower octane value than prescribed, there is a 

danger that the engine temperature may rise and an engine problem such 
as piston seizing may consequently occur.   

 Unleaded gasoline is recommended to reduce the contamination of the air 

for the sake of your health and the environment. 

 Poor quality gasoline or oils may damage sealing rings, fuel lines or fuel 

tank of the engine. 

 

HOW TO MIX FUEL   

Pay attention to agitation   

 

a.  Measure out the quantities of gasoline and oil to be mixed. 
b.  Put some of the gasoline into a clean, approved fuel container. 
c.  Pour in all the oil and agitate well. 

 

d.  Pour in the rest of gasoline and agitate again for at least one minute. As 

some oils may be difficult to agitate depending on oil ingredients, 
sufficient agitation is necessary for the engine to last long. Be careful 
that, if the agitation is insufficient, there is an increased danger of early 

 

WARNING

 

 

IMPORTANT 

Summary of Contents for DS5018CS

Page 1: ...HAINSAW OWNER S MANUAL MODEL DS5018CS Caution Before using our chain saw please read this manual carefully to understand the proper use of your unit Keep this manual available for reference at all times ...

Page 2: ... must be followed to prevent accidents which could lead to serious bodily injury or death This mark indicates instructions which must be followed or it will lead to mechanical failure breakdown or damage This mark indicates hints or directions useful in the use of the product Contents 1 WARNING LABELS ON THE MACHINE 2 2 SYMBOLS ON THE MACHINE 3 3 SAFETY PRECAUTIONS 3 4 INSTALLING GUIDE BAR AND SAW...

Page 3: ...ng this machine b Wear head eye and ear protection c Use the chain saw with two hands d Warning Kickback danger e Warning Attention Never remodel the product We won t warrant the machine if you use the remodeled product or you don t observe the proper usage written in the manual WARNING ...

Page 4: ...e be careful not to make a mistake a The port to refill the MIXED GASOLINE b The port to refill the CHAIN OIL c Flipping the engine switch to the I stop direction will stop the engine d Pulling out the choke knob closes the choke e MIN direction the oil flow decreases MAX direction the oil flow increases f The position of the Carburetor Adjustments ...

Page 5: ...ew of the area 3 During rain storms during lighting storms at times of strong or gale force winds or at any other times when weather conditions might make it unsafe to use this product d Lack of sleep tiredness or physical exhaustion results in lower attention spans and this in turn leads to accidents and injury Limit the amount of time of using the machine continuously to somewhere around 10 minu...

Page 6: ... fuel cap back tightly onto the fuel tank and then carry the product to a spot 3 ft or more away from where it was refueled before turning on the engine again BEFORE STARTING ENGINE a Check work area the cutting object and cutting direction If there are any obstacles remove them b Never start until you have a clear work area secure footing and a planned retreat path from the failing tree c Use cau...

Page 7: ...ses may cause a lightning fast reverse reaction kicking the guide bar up and back towards the operator Either of these reactions may cause you to lose control of saw which could result in serious personal injury b Do not rely exclusively on the safety devices built into your saw As a chain saw user you should take several steps to keep cutting jobs free from accident or injury 1 With a basic under...

Page 8: ... the power unit Adjust the position of chain tensioner nut on the chain cover to the lower hole of guide bar 1 Tensioner nut 2 Chain cover Pay attention to the correct direction of the saw chain a Mount the bar to the studs of the power unit and fit the saw chain around the guide bar adjust the position of chain tensioner nut on the chain b Tighten the tensioner screw Style 1 or Style 2 1 Tighten ...

Page 9: ...ake sure to use gasoline with a minimum octane number of 89 RON USA Canada 87AL If you use a gasoline of a lower octane value than prescribed there is a danger that the engine temperature may rise and an engine problem such as piston seizing may consequently occur Unleaded gasoline is recommended to reduce the contamination of the air for the sake of your health and the environment Poor quality ga...

Page 10: ...xed gasoline in the container FOR YOUR ENGINE LIFE AVOID a FUEL WITH NO OIL RAW GASOLINE It will cause severe damage to the internal engine parts very quickly b GASOHOL It can cause deterioration of rubber and or plastic parts and disruption of engine lubrication c OIL FOR 4 CYCLE ENGINE USE It can cause spark plug fouling exhaust port blocking or piston ring sticking d In the case of storing the ...

Page 11: ...d pull the starter rope vigorously Do not start the engine while holding the chain saw The saw chain may touch your body It s very dangerous e When engine has ignited push in the choke knob and pull the starter again to start the engine f Allow the engine to warm up with the throttle lever pulled slightly Pulling throttle level out the choke knob is automatically returned to the operating position...

Page 12: ...ine and allow it to warm up at half throttle c Turn L needle slowly clockwise to find a position where idling speed is maximum then set the needle back a quarter 1 4 turn counterclockwise d Turn idle adjusting screw T counterclockwise so that saw chain does not turn If idling speed is to slow turn the screw clockwise e Make a test cut and adjust the H needle for best cutting power not for maximum ...

Page 13: ...rake band and clutch drum before use It is extremely important that the chain brake be checked for proper operation before each use and that the chain be sharp to maintain the kickback safety leveled the saw Removal of the safety devices inadequate maintenance or incorrect replacement of the bar or chain may increase the risk of serious personal injury due to kickback FELLING A TREE a Decide the f...

Page 14: ... the ground Saw down halfway then roll the log over and cut from the opposite side A log hanging off the ground In area A saw up from the bottom one third and finish by sawing down from the top in area B saw down from the top one third and finish by sawing up from the bottom Cutting limb of Fallen Tree First check to which side the limbs bent Then make the initial cut from the bent side and finish...

Page 15: ... clean dirt in the meshes split the cleaner into halves and brush in gasoline When using compressed air blow from the inside b Oiling port Dismount the guide bar and check the oiling port for clogging 1 Oiling port c Guide bar When the guide bar is dismounted remove sawdust in the bar groove and the oiling port Grease the nose sprocket from the feeding port on the tip of the bar 1 Oiling port 2 Gr...

Page 16: ...the filter use a pinch to hold the end of the suction pipe take care not to allow filters or dust inside the suction pipe c Oil tank With a wire hook take out the oil filter through the filler port and clean in gasoline When putting the filter back into the tank make sure that it comes to the front right corner Also clean off dirt in the tank d Spark plug Clean the electrodes with a wire brush and...

Page 17: ...ld securely Make sure the engine is stopped Use a round file of proper size for your chain Place your file on the cutter and push straight forward Keep the file position as illustrated After every cutter has been set check the depth gauge and file it to the proper level as illustrated Be sure to round off the front edge to reduce the chance of kickback or tie strap breakage 1 Appropriate gauge che...

Page 18: ...acceleration Rough idling Replace with proper fuel Clean Readjust speed needles Case3 Oil does not come out Replace Clean Make sure the icing prevention system is not active Check fuel for water or substandard mixture Check for engine flooding Check the spark Check fuel for water or substandard mixture Check air filter and fuel filter for clogging Check carburetor for inadequate adjustment Check o...

Page 19: ...k capacity oz 17 9 Chain oil Bar and Chain Oil Oil tank capacity oz 8 45 Carburetor Diaphragm Type Ignition system C D I Spark plug RCJ6Y Oil feeding system Automatic pump with adjuster Sprocket Teeth Pitch 7T 0 325 Dimensions L W H 35 8 9 4 9 8 Dry weight lbs 12 13 Guide bar Type Sprocket nose Size inch 18 Gauge inch 0 058 ...

Page 20: ...DuroStar Power Equipment 5798 Ontario Mills Pkwy Ontario CA 91764 800 629 3325 M F 7 00a 5 00p PT support maxtool com ...

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