Zenoah KOMATSU G3800 User's Manual
Contents
1. the engine stopped the guide bar and saw chain to the rear and the muffler away from your body Always inspect the chain saw be fore each use for worn loose or damaged parts Never operate a chain saw that is damaged im properly adjusted or is not com pletely and securely assembled Be sure that the saw chain stops moving when the throttle control trigger is released 15 All chain saw service other than the items listed in the Owner s Manual should be performed by competent chain saw service personnel E g if improper tools are used to remove the flywheel or if an improper tool is used to hold the flywheel in order to re move the clutch structural dam age to the flywheel could occur which could subseguently cause the flywheel to disintegrate 16 Always shut off the engine be fore setting it down Use extreme caution when cut ting small size brush and sap lings because slender material may catch the saw chain and be whipped toward you or pull you off balance 18 When cutting a limb that is un der tension be alert for spring back so that you will not be struck when the tension in the wood fibers is released 19 Never cut in high wind bad weather when visibility is poor or in very high or low temperatures Always check the tree for dead branches which could fall during the felling operation Keep the handles dry clean and free of oil or fuel mixture Operate the cha2. POWEN mettre katat 1 62 9 500 kw min MIE SOES inten ie AS 12 500 min Idle speed ener 2 900 min Sprocket Teeth x PHC ineens eneen 6T x 3 8 Dimensions L x W x H mm 510 X 235X 270 Limited warranty should any failure occur on the product under normal operating conditions within the applicable warranty pe riod the failed part will be replaced or repaired free of charge by a KOMATSU ZENOAH authorized dealer WARRANTY PERIOD 1 year 6 months if used profes sionally and 30 days if used for rental purpose from the date of initial purchase THE PURCHASER SHALL BEAR COSTS OF TRANS PORTING THE UNIT TO AND FROM THE KOMATSU ZENOAH DEALER THE PURCHASER SHALL NOT BE CHARGED FOR DI AGNOSTIC LABOR WHICH LEADS TO THE DETERMI NATION THAT A WARRANTED PART IS DEFECTIVE IF THE DIAGNOSTIC WORK IS PERFORMED AT THE KOMATSU ZENOAH DEALER THE PURCHASER OR OWNER IS RESPONSIBLE FOR THE PERFORMANCE OF THE REQUIRED MAINTE NANCE AS DEFINED BY THE MANUFACTURER IN THE OWNER OPERATOR MANUAL ANY WARRANTED PART WHICH IS NOT SCHEDULED FOR REPLACEMENT AS REQUIRED MAINTENANCE OR WHICH IS SCHEDULED ONLY FOR REGULAR IN SPECTION TO THE EFFECT OF REPAIR OR REPLACE AS NECESSARY SHALL BE WARRANTED FOR THE WARRANTY PERIOD ANY WARRANTED PART WHICH IS SCHEDULED FOR REPLACEMENT AS REQUIRED MAINTENANCE SHALL BE WARRANTED FOR THE PERIOD OF TIME UP TO THE FIRST SCHEDULED REPLACEMENT POINT FOR THE PART ANY REPLACEMENT PART
3. increase Cutting time and press ing a dull chain through wood will increase the vibrations transmit ted to your hands A saw with loose components or with dam aged or worn AV buffers will also tend to have higher vibration lev els All the above mentioned precau tions do not guarantee that you will not sustain whitefinger dis ease or carpal tunnel syndrome Therefore continual and regular users should monitor closely the condition of their hands and fin gers If any of the above symptoms ap pear seek medical advice imme diately Always use caution when han dling fuel Wipe up all spills and then move the chain saw at least 3 m from the fueling point before starting the engine Eliminate all sources of sparks or flame i e smoking open flames or work that can cause sparks in the areas where fuel is mixed poured or stored Do not smoke while handling fuel or while operating the chain saw Do not allow other persons to be near the chain saw when start ing or cutting Keep bystanders and animals out of the work area Children pets and bystanders should be a minimum of 10 m away when you Start or operate the chain saw thumb and fingers encircling the chain saw handles 11 Keep all parts of your body away from the saw chain when the en gine is running 12 Before you start the engine make sure the saw chain is not contacting anything Always carry the chain saw with
4. THAT IS EQUIVALENT IN PERFORMANCE AND DULABILITY MAY BE USED IN NON WARRANTY MAINTENANCE OR REPAIRS AND G3800 Dry weight Power unit only kg anneer 4 15 Cutting head Guide bar WS ARAM AE Sprocket nose ZO ANN Eeserveen 14 350 16 400 saw chain TYDE Mi vatte ta nea Oregon 91VG Pitch in IGN nae EVA MEE 3 8 9 53 Gauge in 101 100 AADA 0 05 1 27 Specifications are subject to change wihout notice SHALL NOT REDUCE THE WARRANTY OBLIGATION OF THE COMPANY THE COMPANY IS LIABLE FOR DAMAGES TO OTHER ENGINE COMPONENTS CAUSED BY THE FAILURE OF A WARRANTED PART STILL UNDER WARRANTY THE WARRANTY DOES NOT APPLY TO THOSE UNITS WHICH HAVE BEEN DAMAGED BY NEGLIGENCE OF INSTRUCTION LISTED IN THE OWNER OPERATOR MANUAL FOR PROPER USE AND MAINTENANCE OF THE UNITS ACCIDENT MISHANDLING ALTERATION ABUSE IMPROPER LUBRICATION USE OF ANY PARTS OR ACCESSORIES OTHER THAN THOSE SPECIFIED BY THE COMPANY OR OTHER CAUSES BEYOND THE COMPANY S CONTROL THIS WARRANTY DOES NOT COVER THOSE PARTS REPLACED BY NORMAL WEAR OR HARMLESS CHANGES IN THEIR APPEARANCE THERE ARE NO OTHER EXPRESS WARRANTIES IMPLIED WARRANTIES INCLUDING THOSE OF MER CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED TO TWO 2 YEARS OF HOME USE ONE 1 YEAR FOR ANY OTHER USE FROM THE ORIGINAL DELIVERY DATE LIABILITIES FOR INCIDENTAL OR CONSEQUENTIAL DAMAGE UNDER ANY AND ALL WARRANTIES ARE EXCLUDED IF YOU NEED TO OBTAIN MORE
5. front handle when the engine is running Use a firm grip with thumbs and fingers encircling the chain saw handles A firm grip will help you reduce kick back and maintain control of the saw 3 Make certain that the area in which you are cutting is free from obstructions Do not let the nose of the guide bar contact a log branch or any other obstruction which could be hit while you are operating the saw 4 Cut at high engine speeds 5 Do not overreach or cut above shoulder height 6 Follow the manufacturer s sharp ening and maintenance instruc tions for the saw chain A WARNING EEEN e Kickback may occur when the yas 7 Only use replacement bars and nose or tip of the guide bar RO chains specified by the manufac touches an object or when the we pe turer or the equivalent wood closes in and pinches the AN En GB 5 G3800 2 Explanation of Symbols on the Machine For safe operation and maintenance symbols are carved in relief on the machine According to these indications please be careful not to make any mistake N 4 Voie WP START UP UN OJO MIN MAX NJ IF GB 6 The port to refuel MIX GASOLINE Position Fuel cap The port to top up chain oil Position Oil cap setting the switch to the O position the engine stops immediately Position Rear left of the unit Starting the engine If you pull out the choke knob at the back right of the rear handle
6. normal may result in the engine failing to start properly or in the engine failing to operate at its normal speed and for this reason you should always be sure to return the unit to the normal operating mode if there is no danger of icing occurring E HOW TO SWITCH BETWEEN OPERATING MODES Choke knob 4 Icing cap Flip the engine switch to turn off the engine 2 Remove the cover to the air filter remove the air filter and then remove the choke knob from the cylinder cover Loosen the screws holding the cylinder cover in place i e the three screws on the inside and the one screw on the outside of the cover and then remove the cylin der cover 4 Press with your finger down on the icing cap located on the right hand side of the cylinder cover to remove the icing cap 5 Adjust the icing cap so that the snow mark faces up wards and then return it to its original position in the cylinder cover 6 Fixthe cylinder cover back into its original position and then fix all other parts back into their proper positions Go 6 Sawing Before proceeding to your job read the section For Safe Operation It is recommended to first practice sawing easy logs This also helps you get accustomed to your unit Always follow the safety regu lations The chain saw must only be used for cutting wood It is forbidden to cut other types of material Vibrations and kickback vary with differ ent mater
7. 848C4093A2 601 ZEMOAI KOMATSU s 8 OWNER S MANUAL CHAIN SAWS G3800 G3800 EXPLANATION OF SYMBOLS AND SAFETY WARNINGS Read operator s instruction book before operating this machine Wear head eye and ear protection Use the chain saw Warning Danger of with two hands kickback Read understand and follow all warnings AN WARNING RISK OF DAMAGING HEARING IN NORMAL CONDITIONS OF USE THIS MACHINE MAY INVOLVE A DAILY LEVEL OF PERSONAL EXPOSURE TO NOISE FOR THE OPERATOR EQUAL TO OR GREATER THAN 85 dB A MODEL SOUND LEVEL VIBRATION LEVEL EN 608 ISO 7182 2000 14 EC EN 608 ISO 7505 LWA EPA guaranteed Front handle Rear handle 98 dB A 110 dB A APPROVAL NUMBER OF CE EXHAUST EMISSION REGULATION 2002 88 EC e13 97 685H2G3 2002 88 0088 00 GB 2 G3800 DECLARATION OF CONFORMITY TO MACHINES DIRECTIVE Directive 98 37 EC 89 336 EEC and to the regulations governing transposition Internal contorol production MANUFACTURER KOMATSU ZENOAH No 9 1 Chome MINAMIDAI KAWAGOE City SAITAMA JAPAN DECLARES THAT THE DESIGN OF THE MACHINE DESCRIBED BELOW Model 3800 Serial no 000101 and up Make KOMATSU ZENOAH CONFORMS TO THE REQUIREMENTS OF THE MODIFIED MACHINES DIRECTIVE Directive 98 37 EC AND TO THE NATIONAL REGULATION GOVERNING ITS TRANSPOSITION ABROAD AND THAT IT HAS BEEN ISSUED WITH A CE CERTIFICATE NO 01996 00 BY THE ISTITUTO C
8. AP hi In case the brake is not effective ask our dealer for inspection and repairs If the engine keeps rotating at high speed with the brake engaged the clutch will overheat causing trouble When the brake engages during operation immediately release the throttle lever to stop the engine B STOPPING THE ENGINE 1 Release the throttle lever to allow the engine to idle for a few minutes 2 Set the switch to the O STOP position switch GB 10 Carburetor anti freeze mechanism Operating chain saws in temperatures of O 5 C at times of high humidity may result in ice forming within the carburetor and this in turn may cause the output power of the engine to be reduced or for the engine to fail to operate smoothly This product has accordingly been designed with a ven tilation hatch on the right side of the surface of the cyl inder cover to allow warm air to be supplied to the en gine and to thereby prevent icing from occurring Under normal circumstances the product should be used in the normal operating mode i e in the mode to which it is set at the time of shipment However when the possibility exists that icing may occur the unit should be set to operate in the anti freeze mode before use Normal operating mode Anti freeze mode Cylinder cover Sunshine mark Snow mark Continuing to use the product in the anti freeze mode even when temperatures have risen and returned to
9. Bar Size Guide Bar Saw Chain e The bar rail should always be square Check for wear G3800 14 848 CB2 4G23 2931 52210 16 3608 52112 2932 52210 of the bar rail Apply a ruler to the bar and the out 9 Troubleshooting Guide Case 1 Starting failure Case 3 Oil does not come out Make sure the icing prevention system is not Check oil for sub mp Replace working standard quality Check fuel for water or substandard mix Check oil passage and ports for clog m ging Remove and dry the eee a At a If the unit seems to need further service please consult ture 4 with an authorized service shop in your area Check spark ignition m A with a new Case 2 Lack of power Poor acceleration Rough idling Replace with proper fuel Check fuel for water or substandard mix m ture Replace with proper fuel Check air filter and fuel filter for clog m Clean ging Check carburetor for inadequate ad m justment Readjust speed needles GB 14 10 Specifications Power unit Displacement CMS aaneen 37 2 Fuel ed Mixture Gasoline 50 Two cycle oil 1 when using ZENOAH genuine oil Fuel tank capacity TOM meneren 310 CHAN OI ter tanend een Motor oil SAE 10W 30 OiFtank Capacity Om i raaa 210 Carburetor siessen Diaphragm type Walbro WT SMON SYSLENE LASU Pointless TCI Spark OUDE aren mis baten elund ami dna Champion RCJ 7Y Oil feeding system ee ceees Automatic pump
10. ERTIFICAZIONE EUROPEA PALAZZO DEL VESCOVO V GARIBALDI 20 40011 ANZOLA DELL EMILIA ITALY Signed in Saitama Japan 1st September 2001 ARGE Isamu NAKAZATO General Manager Guality Assurance Department Contents te EOS ALS OO CT AMON tiennent tee dodende eat al 4 2 Explanation of Symbols on the Machine nn 6 3 Installing Guide Bar and Saw Chain 7 A gt Fear chain Olsa takte tu 8 De Operin MS ENONSE raedt ammuli altai aial kaa aaa 9 Os SAMA ons dense amil etende ee 11 BA Mainea Beten dn eene ra r ai 12 8 Maintenance of Saw Chain and Guide Bar 13 Ox FOUDISSMOOUNTE GUIS PETMINE EAA 14 10 SPECHCANONS an nvineenerndern deert ningen Haanen deden ih kir kate 15 GB 3 63800 1 For safe operation 1 Never operate a chain saw when X 9 Never start cutting until you have you are fatigued ill or upset or A a clear work area secure foot under the influence of medica ing and a planned retreat path tion that may make you drowsy i kr from the falling tree or if you are under the influence KA O gl a of alcohol or drugs F EF 10 Always hold the chain saw firmly with both hands when the engine is running Use a firm grip with 2 Use safety footwear snug fitting clothing and eye hearing and head protection devices pr ware Use the vibration proof glove Keep the saw chain sharp and the saw including the AV system well maintained A dull chain will
11. INFORMATION PLEASE CALL YOUR NEAREST SERVICE CENTER OR CHECK PLEASE KOMATSU ZENOAH WEB SITE http www zenoah net GB 15
12. Once the choke knob has been pulled out it will not return to the operating position even if you press down on it with your finger When you wish to return the choke knob to the operating position pull out the throttle lever instead 4 While holding the saw unit securely on the ground pull the starter rope vigorously Do not start the engine while the chain saw hangs in one hand The saw chain may touch your body This is very dangerous 5 When engine has ignited first push in the choke knob to the first stage position and then pull the starter again to start the engine G3800 6 Allow the engine to warm up with the throttle lever pulled slightly Keep clear of the saw chain as it will start rotating upon starting of engine B CHECKING THE OIL SUPPLY Make sure to set up the bar and the chain when checking the oil supply If not the rotating parts may be exposed It Is very dangerous After starting the engine run the chain at medium speed and see if chain oil is scattered off as shown in the figure Lr Chain oil me The chain oil flow can be changed by inserting a screw driver in the hole on bottom of the clutch side Adjust according to your work conditions N Chain oil flow Lean adjusting B ADJUSTING THE CARBURETOR L needle H needle The carburetor on your unit has been factory adjusted but may require fine tuning due to a change in operat ing conditions Before adjusting the
13. W 2 stroke water cooling type mixed oil E RECOMMENDED MIXING RATIO GASOLINE 50 OIL 1 when using ZENOAH genuine oil Exhaust emission are controlled by the funda mental engine parameters and components eg carburation ignition timing and port timing with out addition of any major hardware or the intro duction 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 BORON USA Canada 87AL If you use a gasoline of a lower octane value than prescribed there is a danger that the engine tem perature may rise and an engine problem such as piston seizing may conseguently occur Unleaded gasoline is recommended to reduce the contamination of the air for the sake of your health and the environment Poor quality gasolines or oils may damage sealing rings fuel lines or fuel tank of the engine B HOW TO MIX FUEL A WARNING 1 2 3 Pay attention to agitation Measure out the quantities of gasoline and oil to be mixed Put some of the gasoline into a clean approved fuel container Pour in all of the oil and agitate well GB 8 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 agi tation is necessary for the engine to last long Be careful that if the agitation is insufficient there is an increased d
14. age and loose fastenings and damage to major parts especially handle joints and guide bar mounting If any defects are found make sure to have them repaired before operating the saw again E PERIODICAL SERVICE POINTS 1 Cylinder fins Dust clogging between the cylinder fins will cause overheat ing of the engine Periodically check and clean the cylinder fins after removing the air cleaner and the cylinder cover When installing the cylinder cover make sure that switch wires and grommets are positioned correctly in place Note Be sure to block the air intake hole 2 Fuel filter a Using a wire hook take out the filter from the filler port b Disassemble the filter and wash with gasoline or replace with a new one if needed e After removing the filter use a pinch to hold the end of the suction pipe e When assembling the filter take care not to allow filter fibers or dust inside the suction pipe G3800 3 Spark plug 0 6 0 7 mm Champion RCJ 7Y Clean the electrodes with a wire brush and reset the gap to 0 65 mm as necessary 4 Sprocket Check for cracks and for excessive wear interfering with the chain drive If the wear is considerable replace it with new one Never fit a new chain on a worn sprocket or a worn chain on a new sprocket 8 Maintenance of Saw Chain and Guide Bar B Saw Chain It is very important for smooth and safe op eration to always keep the cutters sharp The cu
15. anger of early piston seizing due to ab normally lean mixture Put a clear indication on the outside of the container to avoid mixing up with gasoline or other contain ers Indicate the contents on outside of container for easy identification E FUELING THE UNIT 1 2 3 Untwist and remove the fuel cap Rest the cap ona dustless place Put fuel into the fuel tank to 80 of the full capacity Fasten the fuel cap securely and wipe up any fuel spillage around the unit A WARNING 1 2 3 Select bare ground for fueling Move at least 10 feet 3 meters away from the fuel ing point before starting the engine Stop the engine before refueling the unit At that time be sure to sufficiently agitate the mixed gasoline in the container E FOR YOUR ENGINE LIFE AVOID 1 FUEL WITH NO OIL RAW GASOLINE It will cause severe damage to the internal engine parts very quickly GASOHOL It can cause deterioration of rubber and or plastic parts and disruption of engine lubrication OIL FOR 4 CYCLE ENGINE USE It can cause spark plug fouling exhaust port blocking or piston ring sticking Mixed fuels which have been left unused for a period of one month or more may clog the carbu retor and result in the engine failing to operate prop erly In the case of storing the product for a long period of time clean the fuel tank after rendering it empty Next activate the engine and empty the carburetor of the compos
16. brake is not engaged Loosen the nuts and remove the chain cover Gear the chain to the sprocket and while fitting the saw chain around the guide bar mount the guide bar to the power unit Adjust the position of the chain tensioner oN Tensioner screw 6 Tighten the nuts securely with the bar tip held up 12 15 N m Then check the chain for smooth ro tation and proper tension while moving it by hand If necessary readjust with the chain cover loose Chain cover 7 Tighten the tensioner screw Note Pay attention to the correct direction of the saw chain Note A new chain will expand its length in the beginning of use Check and readjust the tension frequently as a loose chain can Moving direction easily derail or cause rapid wear of itseif and the guide bar GB 7 G3800 4 Fuel and Chain Oil E FUEL A 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 before refuel ing the unit Select outdoor bare ground for fuel ing and move at least 3 m 10 ft away from the fueling point before starting the engine cr The Komatsu Zenoah engines are lubricated by oil specially formulated for air cooled 2 cycle gasoline engine use If Komatsu Zenoah oil is not available use an anti oxidant added quality oil expressly labeled for air cooled 2 cycle engine use JASO FC GRADE OIL or ISO EGC GRADE Do not use BIA or TC
17. carburetor make sure that the pro vided air fuel filters are clean and fresh and the fuel prop erly mixed When adjusting take the following steps Note Be sure to adjust the carburetor with the bar chain attached 1 H and L needles are restricted within the number of turn as shown below H needle 1 4 L needle 1 4 2 Start the engine and allow it to warm up in low speed for a few minutes 3 Turn the idle adjusting screw T counterclockwise so that the saw chain does not turn If the idling speed is too slow turn the screw clockwise 4 Make a test cut and adjust the H needle for best cutting power not for maximum speed GB 9 G3800 B CHAIN BRAKE This machine is equipped with an automatic brake to stop saw chain rotation upon occurrence of kickback during saw cutting The brake is automatically operated by inertial force which acts on the weight fitted inside the front guard This brake can also be operated manually with the front guard turned down to the guide bar To release the brake pull up the front guard toward the front handle till a click sound is heard a b Caution Be sure to confirm brake operation during daily inspec tion How to confirm 1 Turn off the engine 2 Holding the chain saw horizontally release your hand from the front handle hit the tip of the guide bar to a stump or a piece of wood and confirm brake op eration Operating level varies by bar size
18. ials and the require ments of the safety regulations would not be respected Do not use the chain saw as a le ver for lifting moving or split ting objects Do not lock it over fixed stands It is forbidden to hitch tools or applications to the PTO other than those specified by the manufacturer e tis not necessary to force the saw into the cut Apply only light pressure while running the engine at full throttle When the saw chain is caught in the cut do not attempt to pull it out by force but use a wedge or a lever to open the way E GUARD AGAINST KICKBACK e This saw is equipped with a chain brake that will stop the chain in the event of kickback if operating prop erly You must check the chain brake operation before each usage by run ning the saw at full the throttle for 2 seconds and pushing the front hand guard forward The chain should stop immediately with the en G3800 gine at full speed If the chain is slow to stop or does not stop replace the brake band and clutch drum before use e t is extremely important that the chain brake be checked for proper a operation before each use and that OKO OIO 0 the chain be sharp in order to main tain the kickback safety level of this saw Removal of the safety devices inadequate maintenance or incor rect replacement of the bar or chain may increase the risk ot serious per sonal injury due to kickback E FELLING A TREE Felling directi
19. imbs of Fallen Tree 7 Maintenance Before cleaning the inspecting or repairing the unit make sure that engine has stopped and is cool Disconnect the spark plug to prevent accidental starting B MAINTENANCE AFTER EACH USE 1 Air filter Dust on the cleaner surface can be removed by tapping a corner of the cleaner against a hard surface To clean dirt in the meshes split the cleaner into halves and brush in gaso line When using compressed air blow from the inside To assemble the cleaner halves press the rim until it clicks Note When installing the main filter make sure that the grooves on the filter edge are correctly fit with the projections on the cylinder cover 2 Oiling port Dismount the guide bar and check the oiling port for clogging GB 12 First check to which side the limb is bent Then make the initial cut from the bent side and finish by sawing from the opposite side A Be alert to the springing back of a cut limb Pruning of Standing Tree Cutup from the bottom finish down from the top e Do not use an unstable foothold or ladder A e Do not overreach e Do not cut above shoulder height e Always use both your hands to hold the saw 3 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 Grease port Sprocket 4 Others Check for fuel leak
20. in saw only in well ventilated areas Never start or run the engine inside a closed room or building Exhaust fumes contain dangerous carbon mon oxide Do not operate the chain saw in a tree unless specially trained to do so Guard against kickback Kick back is the upward motion of the guide bar which occurs when the saw chain at the nose of the guide bar contacts an object Kickback can lead to dangerous loss of control of the chain saw When transporting your chain saw make sure the appropriate guide bar scabbard is in place KICKBACK SAFETY PRECAU TIONS FOR CHAIN SAW USERS Q k ie G3800 saw chain in the cut Tip contact in some cases may cause a light ning fast reverse reaction kicking the guide bar up and back to wards the operator Pinching the saw chain along the top of the guide bar may push the guide bar rapidly back towards the op erator Either of these reactions may cause you to lose control of the saw which could result in serious personal injury Do not rely exclusively on the safety devices built into your saw As a chain saw user you should take several steps to keep cut ting jobs free from accident or injury 1 With a basic understanding of kickback you can reduce or eliminate the element of surprise Sudden surprise contributes to accidents 2 Keep a good grip on the saw with both hands the right hand on the rear handle and the left hand on the
21. ite fuel In the case of scrapping the used mixed oil con tainer scrap it only at an authorized repository site Note As for details of quality assurance read the description in the section Limited Warranty carefully Moreover normal wear and change in product with no functional influence are not covered by the warranty Also be careful that if the usage in the instruction manual is not observed as to the mixed gasoline etc described therein it may not be covered by the warranty B CHAIN OIL Use motor oil SAE 10W 30 all year round or SAE 30 40 in summer and SAE 20 in winter 0 SZ Note Do not use wasted or regenerated oil that can cause damage to the oil pump 5 Operating the Engine It is very dangerous to run a chainsaw that mounts broken parts or lacks any parts Before starting engine make sure that all the parts including bar and chain are installed properly B STARTING THE ENGINE 1 Fill fuel and chain oil tanks respectively and tighten the caps securely Chain oil 2 Set the switch to I position 3 Pull out the choke knob to the second stage posi tion The choke will close and the throttle lever will then be set in the starting position Choke knob A y c eZ Mi e A fA Ai AVL FL FL AND Note When restarting immediately after stopping the engine set the Choke knob in the first stage position choke open and throttle lever in the starting position Note
22. on 4 Notch cut 1 D E Q 2 Felling cut om Vae fi 1 Decide the felling direction considering the wind lean of the tree location of heavy branches ease of completing the task after felling and other factors 2 While clearing the area around the tree arrange a good foothold and retreat path 3 Make a notch cut one third of the way into the tree on the felling side 4 Make a felling cut from the opposite side of the notch and at a level slightly higher than the bottom of the notch When you fell a tree be sure to warn neigh boring workers of the danger Bucking and Limbing e Always ensure your foothold Do not stand A on the log e Be alert to the rolling over of a cut log Es pecially when working on a slope stand on the uphill side of the log e Follow the instructions in For Safe Opera tion to avoid kickback of the saw Before starting work check the direction of bending force inside the log to be cut Always finish cutting from the opposite side of the bending direction to prevent the guide bar from being caught in the cut GB 11 G3800 A log lying on the ground he ad vaga 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 bot tom Cutting the l
23. to the point of the arrow you can set the starting mode as follows e First stage position starting mode when the engine is warm e Second stage position starting mode when the engine is cold Position Upper right of the aircleaner cover The screw under the H stamp is The High speed adjustment screw The screw under the L stamp is The Slow speed adjustment screw The screw at the left of the T stamp is the Idle adjustment screw Position Left side of the rear handle Shows the directions that the chain brake Is released white arrow and activated black arrow Position Front of the chain cover If you turn the rod by screwdriver follow the arrow to the MAX position the chain oil flow more and if you turn to the MIN position less Position Bottom of the power unit G3800 3 Installing Guide Bar and Saw Chain A standard saw unit package contains the items as illustrated Power unit Bar protector Guide bar Saw chain Open the box and install the guide bar and the saw 4 Fit the chain cover to the power unit and fasten the chain on the power unit as follows nuts to finger tightness 5 While holding up the tip of the bar adjust the chain The saw chain has very sharp edges Use tension by turning the tensioner screw until the tie thick protective gloves for safety Straps just touch the bottom side of the bar rail 1 Pull the guard towards the front handle to check that the chain
24. tters need to be sharpened when e Sawdust becomes powder like e You need exira force to Saw in e The cut path does not go straight e Vibration increases e Fuel consumption increases Cutter setting standards A Be sure to wear safety gloves Before filing e Make sure the saw chain is held securely e Make sure the engine is stopped e Use around file of proper size for the chain Chain type 91VG File size 5 32 in 4 0 mm Place the file on the cutter and push straight forward Keep the file position as illustrated After each cutter has been filed check the depth gauge and file it to the proper level as illustrated 91VG 025 0 64 mm ENNE Depth gauge standard loo GB 13 G3800 side of a cutter If a gap is observed between them Be sure to round off the front edge to reduce Ie e the rail is normal Otherwise the bar rail is worn the chance of kickback or tie strap breakage Such a bar needs to be corrected or replaced Make sure every cutter has the same length and edge Ruler 5 gt pe angles as illustrated E 3 Cutter length EV Gap I om gt 3 GA OL n cot l l Yaoi Filing angle M PS No gap ae i E Ka zo Side plate angle Chain tilts on H 60 Top plate cutting angle This saw is equipped with one of the following low nn kickback bar chain combinations Komatsu Zenoah Part Number A A a bar occasionally to prevent partial wear saw Model
Download Pdf Manuals
Related Search