RedMax GZ4500 Operator`s manual
Contents
1. 10 Never operate a chain saw when you are fatigued ill or upset or under the influence of medication that may make you drowsy or if you are under the influence of alcohol or drugs Use safety footwear snug fitting clothing and eye hearing and head protection devices Use the vibration proof glove Keep the saw chain sharp and the saw including the AV system well maintained A dull chain will increase cutting time and pressing a dull chain through wood will increase the vibrations transmitted to your hands A saw with loose components or with damaged or worn AV buffers will also tend to have higher vibration levels All the above mentioned precautions do not guarantee that you will not sustain whitefinger disease or carpal tunnel syndrome Therefore continual and regular users should monitor closely the condition of their hands and fingers If any of the above symptoms appear seek medical advice immediately Always use caution when handling 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 starting or cutting Keep bystanders and animals out of the work area Chil2. straight forward Keep the file position as illustrated F37 After every cutter has been set check the depth gauge and file it to the proper level as illustrated F38 AWARNING Be sure to round off the front edge to reduce the chance of kickback or tie strap breakage 1 Appropriate gauge checker 2 Make the shoulder round 3 Depth gauge standard GZ4500 Make sure every cutter has the same length and edge angles as illustrated F39 1 Cutter length 2 Filing angle 3 Side plate angle 4 Top plate cutting angle E GUIDE BAR e Reverse the bar occasionally to prevent partial wear e The bar rail should always be a square Check for wear of the bar rail Apply a ruler to the bar and the outside of a cutter If a gap is observed between them the rail is normal Otherwise the bar rail is worn Such a bar needs to be corrected or replaced F40 1 Ruler 2 Gap 3 No gap 4 Chain tilts AWARNING This saw is equipped with one of the following low kickback bar chain combinations RedMax Part Number Bar Size Guide Bar Saw Chain Oregon Micro Lite Pro Oregon Micro Lite 16 40cm 160MPBK041 95VP 66X 18 45cm 180MPBKO4i lt i CS Q5VP 72X US 17 GZ4500 12 Storage e Aged fuel is one of major causes of engine starting failure Before storing the unit empty the fuel tank and run the engine until it uses all the fuel lef
3. A new chain will expand its length in the beginning of use Check and readjust the tension frequently as a loose chain can easily derail or cause rapid wear of itseif and the guide bar US 7 GZ4500 7 Fuel and Chain Oil E FUEL AWARNING e 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 10 ft 3 m away from the fueling point before starting the engine E GASOLINE REQUIREMENTS e All 2 Stroke RedMax Products are powered by RedMax Professional Commercial Duty Hi Performance Hi RPM Air Cooled 2 Stroke engines RedMax Hi Performance 2 stroke engines produce higher HP outputs as compared to standard Home Owner Duty or Light Commercial Duty production engines offered by most manufacturers e Exhaust emission are controlled by the fundamental engine parameters and components eq carburation ignition timing and port timing without addition of any major hardware or the introduction of an inert material during combustion e The RedMax Engines are registered and certified with CARB California Air Resources Board and EPA Environmental Protection Agency to operate on CLEAN Mid grade 89 octane or Premium unleaded lead free gasoline and RedMax Air Cooled Max Life Synthetic blend Premium two stroke engine oil mixed at 50 1 ratio e Unleaded gasoline is
4. Dimensions L W H sesse esse esse see ee ee ee ee ee ee Re ee Re ee Re Re ee 14 8 370 x9 4 235 x10 8 270 in mm Dry weight Power unit only iese eek ER ER EER EER EER EE EE EER EER EE ER Ee Ee EER Ee Ee ees ee Ee ees ee esse ee 9 6 4 35 lbs kg Cutting attachment Guide bar Type GZ a E RE EE Sprocket nose 16 40 18 45 in cm Saw chain Type Pitch Gauge eers ese Ee ee Oregon 95VP 325 8 26 0 050 1 27 in mm Specifications are subject to change without notice US 3 GZ4500 3 Warning labels on the machine ZAC 1 2 3 4 5 1 Read operator s instruction book before operating this machine 2 Wear head eye and ear protection 3 Use the chain saw with two hands 4 Warning Danger of kickback 5 Read understand and follow all warnings 4 Symbols on the machine For safe operation and maintenance symbols are d carved in relief on the machine According to these indications please be careful not to make any mistake of a N b O c O N 2 Y CHOKE d MT START ww RUN H L e T O O MIN MAX SY 9 US 4 a The port to refuel MIX GASOLINE Position Fuel cap b The port to top up chain oil Position Oil cap c Setting the switch to the O position the engine stops immediately Position Rear left of the unit d Starting the engine If you pull out the choke knob at the back right of the rear hand
5. major parts especially handle joints and guide bar mounting and muffler If any defects are found make sure to have them repaired before operating again E PERIODICAL SERVICE POINTS 1 Air cooling system Dust clogging around the cooling system and the cylinder fins will cause overheating of the engine Periodically check and clean the cooling system and the cylinder fins with a brush after removing the cylinder cover the air cleaner and the recoil case When installing the cylinder cover and the cooling system make sure that switch wires and grommets are positioned correctly in place F31 1 Recoil case 2 Fan cover 3 Fan 4 Cylinder fins 5 Cylinder cover Be sure to block the air intake hole 2 Spark arrester The muffler is equipped with a spark arrester to prevent red hot carbon from flying out of the exhaust outlet Periodically check and clean as necessary with a wire brush after removing two muffler cover nuts and one screw F32 1 Spark arrester Never use a muffler if the spark arrester is missing or defective 3 Exhaust port Remove the muffler insert a screwdriver into the vent and wipe away any carbon buildup after every 100 hours of use Wipe away any carbon buildup on the muffler exhaust vent and the cylinder S exhaust port at the same time F33 a 1 Muffler exhaust vent 2 Cylinder exhaust port US 15 GZ4500 10 Maintenance 2 Fuel filter a Using a wi
6. provided through all RedMax authorized servicing dealers MAINTENANCE REPLACEMENT AND REPAIR OF EMISSION RELATED PARTS Any replacement part may be used in the performance of any warranty maintenance or repairs and must be provided without charge to the owner Such use will not reduce the warranty obligations of the manufacturer MAINTENANCE STATEMENT The owner is responsible for the performance of all required maintenance as defined in the operator s manual
7. the notch E A WARNING When you fell a tree be sure to warn your neighboring workers of the danger 1 Notch cut 2 Felling cut 3 Felling direction Bucking and Limbing A WARNING Always ensure your foothold Do not stand on the log e Be alert to the rolling over of a cut log Especially when working on a slope stand on the uphill side of the log Follow the instructions in For Safe Operation 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 bending direction to prevent the guide bar from being caught in the cut A Log lying on the ground F23 Saw down halfway then roll the log over and cut from the opposite side A Log hanging off the ground F24 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 US 13 GZ4500 9 Sawing F25 US 14 Cutting Limb of Fallen Tree F25 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 AN WARNING Be alert to the springing back of a cut limb Pruning of Standing Tree F26 Cut up from the bottom finish down from the top AN WARNING e Do not use an unstable foothold or ladder e Do not overreach
8. GZ4500 848 C5A 93A3 909 OWNER S OPERATOR S MANUAL CHAINSAW GZ4500 A WARNING A The engine exhaust from this product contains chemicals known to the State of California to cause cancer birth defects or other reproductive harm A WARNING A Before using our products please read this manual carefully to understand the proper use of your unit APPLICABLE SERIAL NUMBERS 703782 and up US 1 GZ4500 Contents US 2 A SAFETY FIRST Instructions contained in warnings within this manual marked witha A symbol concern critical points which must be taken into consideration to prevent possible serious bodily injury and for this reason you are requested to read all such instructions carefully and follow them without fail E WARNINGS IN THE MANUAL AWARNING This mark indicates instructions which must be followed in order to prevent accidents which could lead to serious bodily injury or death IMPORTANT This mark indicates instructions which must be followed or it leads to mechanical failure breakdown or damage This mark indicates hints or directions useful in the use of the product ONO ON Parts location Ese nest SES EE RE EE N SE sith toes Specifications eie ee ek ee ee ee ek ee ee ee ek ee eek ee Warning labels on the machine iese see ee se ee ee ee ee Symbols on the machine iese ee eek Ee ek Ee ek ee For safe operation issie ee se
9. H needle for best cutting power not for maximum speed 1 L needle 2 H needle 3 Idle adjusting screw E 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 F15 IMPORTANT Caution Be sure to confirm brake operation during daily inspection 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 3 ai a aE GZ4500 brake operation Operating level varies by bar size F16 In case the brake is not effective ask our dealer inspection and repairing The engine If being kept rotated at high speed with the brake engaged heats the clutch causing a trouble When the brake is operated while in operation immediately release your fingers from the throttle lever and stop the engine Mm 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 F17 1 Switch C
10. RNING 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 F12 1 Chain oil The chain oil flow can be changed by inserting a screwdriver in the hole on bottom of the clutch side Adjust according to your work conditions F13 1 Rich 2 Lean 3 Chain oil flow adjusting The oil tank should become nearly empty by the time fuel is used up Be sure to refill the oil tank every time when refueling the saw M ADJUSTING THE CARBURETOR F14 The carburetor on your unit has been factory adjusted but may require fine tuning due to a change in operating conditions 8 Operation Before adjusting the carburetor make sure that the provided air fuel filters are clean and fresh and the fuel properly mixed When adjusting take the following steps 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 Lneedle 1 4 2 Start the engine and allow it to warm up in low speed for a few minutes VS 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
11. Resources Board Environment Canada and RedMax are pleased to explain the emissions control system s warranty on your 2009 and later small off road engine In U S and Canada new equipment that use small off road engines must be designed built and equipped to meet the applicable Federal or Californian stringent anti smog standards RedMax must warrant the emissions control system on your small off road engine for the period listed below provided there has been no abuse neglect or improper maintenance of your equipment Your emissions control system may include parts such as carburetor ignition system catalytic converter fuel tank filters and other associated components Also included may be hoses belts connectors sensors and other emission related assemblies Where a warrantable condition exists RedMax will repair your small off road engine at no cost to you including diagnosis parts and labor MANUFACTURER S WARRANTY COVERAGE This emissions control system is warranted for two years or if the product qualifies for a longer warranty period resulting from the type of use that period shall prevail If any emissions related part on your equipment is defective the part will be repaired or replaced by RedMax OWNER S WARRANTY RESPONSIBILITIES As the small off road engine owner you are responsible for performance of the required maintenance listed in your Owner s Manual RedMax recommends that you retain all receipts covering maintenance on y
12. TWO STROKE ENGINE WARRANTY AWARNING e Do not use NMMA National Marine Manufacturers Association BIA Boating Industry Association and TCW two cycle water cooled oils designed for MoPeds or Outboard water cooled Marine Engines Do not use API American Petroleum Institute TC Two Cycle labeled oils The API TC 7 Fuel and Chain Oil test standard has been discontinued by API in 1995 and it no longer exists IMPORTANT e Gasoline Oil mixture Storage Recommendations Store your gasoline or gasoline oil mixture in a cool dry area in a tightly sealed approved container to limit the entry of moisture and additional air oxygen Moisture and air cause the development of varnish and gum making the fuel stale Stored gasoline and gasoline oil mixture ages and loses its octane rating and volatility Do not mix more gasoline oil than you intend to use in 30 days and 60 days when fuel stabilizer is added RedMax Air Cooled Max Life Synthetic blend Premium two stroke engine oil Contains fuel stabilizer and will automatically extend your gasoline oil mixture life up to 60 days Mm HOW TO MIX FUEL RECOMMENDED MIXING RATIO GASOLINE 50 OIL 1 when using RedMax Air Cooled Max Life 50 1 MIXING CHART GASOLINE gal ESE TEE 2 CYCLE OIL fl oz 26 5 2 7 8 10 4 13 GASOLINE liter 1 2 3 4 s 2 CYCLE OIL ml 20 40 60 80 100 AWARNING e Pay attention to agit
13. ain oil tanks respectively and tighten the caps securely F7 2 Set the switch to I position F8 1 Chain oil 2 Fuel 3 Switch 4 Throttle lever 5 Throttle interlock 3 Pull out the choke knob to the second stage position The choke will close and the throttle lever will then be set in the starting position F10 a 6 Choke knob Ae ZY l Fi a When restarting immediately after oN stopping the engine set the Choke knob y in the first stage position choke open and EA b throttle lever in the starting position r Ui Once the choke knob has been pulled YN 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 US 10 4 While holding the saw unit securely on the ground pull the starter rope vigorously F11 AWARNING Do not start the engine while the chain saw hangs in one hand The saw chain may touch your body This in 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 Allow the engine to warm up with the throttle lever pulled slightly AWARNING Keep clear of the saw chain as it will start rotating upon starting of engine O M CHECKING THE OIL SUPPLY A WA
14. all size brush and saplings because slender material may catch the saw chain and be whipped toward you or pull you off balance When cutting a limb that is under tension be alert for spring back so that you will not be struck when the tension in the wood fibers is released 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 21 Operate the chain saw only in well ventilated areas Never start or run the engine inside a closed room or building Exhaust fumes contain dangerous carbon monoxide 14 15 16 17 18 19 20 US 5 GZ4500 A 5 For safe operation US 6 22 23 24 Do not operate the chain saw in a tree unless specially trained to do so Guard against kickback Kickback 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 yo ER sure the appropriate guide bar scabbard is in place KICKBACK SAFETY PRECAUTIONS FOR CHAIN SAW USERS A WARNING Kickback may occur when the nose or tip of the guide bar touches an object or when the wood closes in and pinches the saw chain in the cut Tip contact in
15. arburetor anti freeze mechanism Operating the chain saws in temperatures of 0 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 ventilation hatch on the right side of the surface of the cylinder cover to allow warm air to be supplied to the engine and to thereby prevent icing from occurring Under normal circumstances the product should be used in 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 anti freeze mode before use F18 1 Normal operating mode 2 Anti freeze mode 3 Cylinder cover 4 Sun shine mark 5 Snow mark AWARNING Continuing to use the product in anti freeze mode even when temperatures have risen and returned to 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 normal operating mode if there is no danger of icing occurring US 11 GZ4500 8 Operation F19 US 12 Mm HOW TO SWITCH BETWEEN OPERATING MODES F19 1 Flip the engine switch to turn off the engine 2 Remove the cover to the air filter remove the air fi
16. ation 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 for 10seconds 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 Be careful that if the agitation is insufficient there is an increased danger of early piston seizure due to abnormally lean mixture 5 Place a clear indication on the outside of the container to avoid mixing up with gasoline or other containers that dont contain oil 6 Indicate the contents on outside of container for easy identification ON E FUELING THE UNIT 1 Untwist and remove the fuel cap Rest the cap on a clean surface 2 Put fuel into the fuel tank to 80 of the full capacity 3 Fasten the fuel cap securely and wipe up any fuel spillage around the unit GZ4500 AWARNING 1 Select flat and bare ground for fueling 2 Move at least 10 feet 3 meters away from the fueling point before starting the engine 3 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 2 GASOHOL It can cause deterioration of rubber and or plastic par
17. dren pets and bystanders should be a minimum of 10 m away when you start or operate the chain saw Never start cutting until you have a clear work area secure footing and a planned retreat path from the falling tree Always hold the chain saw firmly with both hands when the engine is running Use a firm grip with thumb and fingers encircling the chain saw handles GZ4500 11 Keep all parts of your body away from the saw chain when the engine is running 12 Before you start the engine make sure the saw chain is not contacting anything 13 Always carry the chain saw with the engine stopped the guide bar and saw chain to the rear and the muffler away from your body Always inspect the chain saw before each use for worn loose or damaged parts Never operate a chain saw that is damaged improperly adjusted or is not completely and securely assembled Be sure that the saw chain stops moving when the throttle control trigger is released 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 remove the clutch structural damage to the flywheel could occur which could subsequently cause the flywheel to disintegrate Always shut off the engine before setting it down Use extreme caution when cutting sm
18. e Do not cut above shoulder height e Always use your both hands to grip the saw 10 Maintenance F27 F29 F30 Maintenance replacement or repair of the emission control device and systems may be performed by any non road engine repair establishment or individual A WARNING Before cleaning inspecting or repairing your unit make sure that engine has stopped and is cool Disconnect the spark plug to prevent accidental starting E 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 gasoline When using compressed air blow from the inside F27 To assemble the cleaner halves press the rim until it clicks 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 F28 1 Oiling port 3 Guide bar When the guide bar is dismounted remove sawdust in the bar groove and the oiling port F29 Grease the nose sprocket from the feeding port on the tip of the bar F30 1 Oiling port 2 Grease port 3 Sprocket GZ4500 4 Others Check for fuel leakage and loose fastenings and damage to
19. ecessary will not reduce the period of warranty coverage Any such part repaired or replaced under warranty will be warranted for the remaining warranty period DIAGNOSIS The owner must not be charged for diagnostic labor that leads to the determination that a warranted part is in fact defective provided that such diagnostic work is performed at a warranty station CONSEQUENTIAL DAMAGES RedMax is liable for damages to other engine components proximately caused by a failure under warranty of any warranted part EMISSION WARRANTY PARTS LIST 1 Air induction system 2 Fuel system 3 Ignition system 4 Fuel tank cap and lines as applicable some components only covered up to point specified by maintenance schedule WHAT IS NOT COVERED All failures caused by abuse neglect or improper maintenance are not covered ADD ON OR MODIFIED PARTS Add on or modified parts that are not exempted by CARB or EPA may not be used The use of any non exempted add on or modified parts will be grounds for disallowing a warranty claim RedMax will not be liable to warrant failures of warranted parts caused by the use of a non exempted add on or modified part HOW TO FILE A CLAIM If you have any questions regarding your warranty rights and responsibilities you should contact your nearest authorized servicing dealer or contact RedMax at 1 800 291 8251 or via e mail at service redmax com WHERE TO GET WARRANTY SERVICE Warranty services or repairs are
20. ee Ee ke ee ee ee ee ee ee ee Installing guide bar and saw chain esec Fuel and chain oil esse see ee ke ee ee Ee ee ee ee ee BEE AE IN OE OE A SAWING es EE EE EE ame Maintenance s is se EE EE SE ER an ee EE eke Ge Maintenance of saw chain and guide Bar iese esse Ro RE AR EE OE EO EE 2 Disposal EE SEE GEE EE NE SE EE EE De GE EG ee Troubleshooting guide ee ee ee ee Ee ee ee ee GZ4500 1 Parts location Front guard Starter knob Air cleaner cover Choke knob Throttle interlock Right handle Throttle lever Engine switch Fuel tank Oil tank Left handle Saw chain 13 Guide Bar ONOUOARWD k mk mk ND AO 2 Specifications E GZ4500 Power unit BEET TN 2 69 44 0 cu in cm EA EET EE OE ER OE EER EE EE EN Mixture Gasoline 50 2 cycle oil 1 when using RedMax genuine oil amen STE RE 10 4 0 31 fl oz Chain OI cesses een naaa RE ERGE Ean SVOTE EDE EE RE KA Motor oil SAE 10W 30 Oil tank TER 7 10 0 21 fl oz Catb r tor erosen asinos LR OO SE ee EE ee EO os Diaphragm type Walbro WT Ignition EE anes Pointless CDI Spark Plug Anit aE rE a EEA raSi KSE EIEEE RE ESA SEENEN EE EENET TER NGK CMR7H Oil feeding EA EE Automatic pump ek ARE OE EE EE EO EER agus coed GE ER RE EE 1 9 9 500 kw min Max SPCC 13 000 MIN RIETTE Ee 2 700 MIN Sprocket Pitch No of teeth sesse seek se SR EER EE ER ER EA ER a ea Ee AR OR Ee ee Ee ee i ee 325in 8 26mm 7T
21. 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 GUARD AGAINST KICKBACK F21 This saw is equipped with a chain brake that will stop the chain in the event of kickback if operating properly You must check the chain brake operation before each usage by running the saw at full the throttle for 1 2 seconds and pushing the front hand guard forward The chain should stop immediately with the engine at full speed If the chain is slow to stop or does not stop replace the brake 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 in order to maintain the kickback safety level of this saw Removal of the safety devices inadequate maintenance or incorrect replacement of the bar or chain may increase the risk ot serious personal injury due to kickback F23 GZ4500 FELLING A TREE F22 Decide the felling direction considering the wind lean of the tree location of heavy branches ease of job after felling and other factors While clearing the area around the tree arrange a good foothold and retreat path Make a notch cut one third of the way into the tree on the felling side Make a felling cut from the opposite side of the notch and at a level slightly higher than the bottom of
22. le 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 e 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 f Shows the directions that the chain brake is released white arrow and activated black arrow Position Front of the chain cover g 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 E EMISSION CONTROL An emission control label is located on the engine EMISSION CONTROL INFORMATION THIS ENGINE MEETS U S EPA AND CALIFORNIA EXH EVP REGS FOR 2009 1 S O R E ENGINE FAMILY 9HOZS 0444BJ 2 DISPL 44cc EMISSION CONTROL SYSTEM EXH EM COMPLIANCE PERIOD 125 HOURS REFER TO OPERATOR S MANUAL FOR MAINTE NANCE SPECIFICATIONS AND ADJUSTMENTS MANUFACTURED iM USE JASO FD OR ISO L EGD GRADE 50 1 OIL e aX Husqvarna Zenoah Co Ltd 1 The year will be changed every year of manufacturing 2 The initial number will be changed every year of manufacturing A 5 For safe operation
23. lter and then remove the choke knob from the cylinder cover 3 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 cylinder 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 upwards and then return it to its original position in the cylinder cover 6 Fix the cylinder cover back into its original position and then fix all other parts back into their proper positions 1 Choke knob 2 Cylinder cover 3 Icing cap 9 Sawing A WARNING Before proceeding to your job read For Safe Operation section lt is recommended to first practice sawing easy logs This also helps you get accustomed to your unit Always follow the safety regulations The chain saw must only be used for cutting wood It is forbidden to cut other types of material Vibrations and kickback vary with different materials and the requirements of the safety regulations would not be respected Do not use the chain saw as a lever for lifting moving or splitting objects Do not lock it over fixed stands lt is forbidden to hitch tools or applications to the P t o that are not specified by the manufacturer It is not necessary to force the saw into the cut Apply only light pressure while running the
24. oper clutch engagements overheating vapor lock power loss lubrication deficiency deterioration of fuel lines gaskets and internal carburetor components etc Alternative fuels cause high moisture absorption into the fuel oil mixture leading to oil and fuel separation E OIL REQUIREMENTS e Use only RedMax Max Life Synthetic blend Premium Air Cooled two stroke engine oil or oil certified to ISO L EGD ISO CD1378 standard AND one that is JASO FD registered RedMax Air Cooled Max Life Synthetic blend Premium two stroke engine oil and ISO L EGD ISO CD1378 AND JASO FD oils are fully compatible with gasoline s containing 10 Ethanol RedMax Air Cooled Max Life Synthetic blend Premium two stroke engine oil and ISO L EGD ISO CD1378 AND JASO FD oils are Universal and should be mixed at 50 1 ratio for all 2 stroke air cooled engines sold in the past regardless of mixing ratios specified in those manuals e Ifthe oil is registered with JASO the JASO Logo with FD and registration number will be displayed on the container The highest JASO rating is FD which equals the ISO L EGD rating Lower ratings are FC FB and FA 001USZ001 FD PRODUCT MEETING JASO M345 THIS FD PERFORMANCE GUARANTEED BY REDMAX e Engine problems due to inadequate lubrication caused by failure to use ISO L EGD certified and JASO ED registered oil such as MaxLife RedMax Synthetic blend Premium 2 stroke oil WILL VOID THE REDMAX
25. our small off road engine but RedMax cannot deny warranty solely for the lack of receipts or your failure to ensure the performance of all scheduled maintenance As the small off road engine owner you should however be aware that the RedMax may deny you warranty coverage if your small off road engine or a part has failed due to abuse neglect or improper maintenance or unapproved modifications You are responsible for presenting your small off road engine to a RedMax distribution center or service center as soon as the problem exists The warranty repairs should be completed in a reasonable amount of time not to exceed 30 days If you have any questions regarding your warranty coverage you should contact RedMax at 1 800 291 8251 or via e mail at service redmax com WARRANTY COMMENCEMENT DATE The warranty period begins on the date the engine or equipment is delivered to an ultimate purchaser LENGTH OF COVERAGE RedMax warrants to the ultimate purchaser and each subsequent owner that the engine or equipment is designed built and equipped so as to conform with all applicable regulations adopted by EPA and CARB and is free from defects in materials and workmanship that causes the failure of a warranted part for a period of two years WHAT IS COVERED REPAIR OR REPLACEMENT OF PARTS Repair or replacement of any warranted part under the warranty must be performed at no charge to the owner at a warranty station Warranty services or repair
26. re hook take out the filter from the filler port F34 1 Fuel filter b Disassemble the filter and wash with gasoline or replace with 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 F35 4 Spark plug Clean the electrodes with a wire brush os ori and reset the gap to 025in as necessary F35 NGK CMR7H 5 Sprocket Check for cracks and for excessive wear interfenng with the chain drive If the wearing is found obviously replace it with new one Never fit a new chain on a worn sprocket or a worn chain on a new sprocket F36 US 16 11 Maintenance of Saw Chain and Guide Bar F37 F38 oe 2 E SAW CHAIN AWARNING It is very important for smooth and safe operation to keep the cutters always sharp Your cutters need to be sharpened when e Sawdust becomes powder like e You need extra force to saw in e The cut way does not go straight e Vibration increases e Fuel consumption increases Cutter setting standards AWARNING 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 a round file of proper size for your chain Chain type 95VP File size 3 16in 4 76mm Place your file on the cutter and push
27. recommended to reduce the contamination of the air for the sake of your health and the environment e This Hi Performance Air Cooled 2 stroke Engine requires the use of Minimum 89 Octane BR4M Mid grade or Premium clean gasoline Gasoline may contain maximum of 10 Ethanol grain alcohol or up to 15 MTBE Methyl tertiary butyl ether Gasoline containing Methanol Wood Alcohol is NOT approved e F octane rating of the Mid Grade gasoline in your area is lower than 89 Octane use Premium Unleaded Gasoline The majority of all 2 stroke engine manufacturers in the USA and Canada recommend using gasoline with 89 Octane or higher AWARNING e Gasoline with an octane rating lower than 89 will greatly increase the engines operating temperature Low octane gasoline will cause detonation knock resulting in piston seizures and major internal engine components damage e Poor quality gasolines or oils may damage sealing rings fuel US 8 lines or fuel tank of the engine e Failures caused by operating engines on gasoline with octane rating lower than 89 are not covered by the RedMax Two Stroke engine warranty AWARNING e Alternative Fuels Not Gasoline Alternative fuels such as E 15 15 ethanol E 20 20 ethanol E 85 85 ethanol are NOT classified as gasoline and are NOT approved for use in RedMax 2 stroke gasoline engines Use of alternative fuels will cause major engine performance and durability problems such as impr
28. s will be provided at all RedMax distribution centers that are franchised to service the subject engines Throughout the emissions warranty period of two years RedMax must maintain a supply of warranted parts sufficient to meet the expected demand for such parts WARRANTY PERIOD Any warranted part that is scheduled for replacement as required in the maintenance schedule is warranted for the period of time prior to the first scheduled replacement point for that part If the part fails prior to the first scheduled replacement the part will be repaired or replaced by RedMax at no cost Any such part repaired or replaced under warranty is warranted for the remainder of the period prior to the first scheduled replacement point for the part Any warranted part that is not scheduled for replacement as required in the maintenance schedule is warranted for two years or if the product qualifies for a longer warranty period resulting from the type of use that period shall prevail If any such part fails during the period of warranty coverage it will be repaired and replaced by RedMax at no cost Any such part repaired or replaced under the GZ4500 US 19 GZ4500 US 20 warranty is warranted for the remaining warranty period Any warranted part that is scheduled only for regular inspection in the maintenance schedule will be warranted for a period of two years A statement in such written instructions to the effect of repair or replace as n
29. some cases may cause a lightning fast reverse reaction kicking the guide bar up and back towards the operator Pinching the saw chain along the top of the guide bar may push the guide bar rapidly back towards the operator 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 cutting 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 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 kickback 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 sharpening and maintenance instructions for the saw chain 7 Only use replacement bars and chains specified by the manufacturer or the equivalent 6 Ins
30. t in the fuel line and the carburetor Store the unit indoor taking necessary measures for rust prevention 13 Disposal e When disposing your machine fuel or oil for the machine be sure to allow your local regulations 14 Troubleshooting guide US 18 Case 1 Starting failure AWARNING Make sure the icing prevention system is not working Check fuel for water or substandard mix ture 4 Check for engine flooding 4 Check the spark Replace with proper fuel Remove and dry the spark plug Then pull the starter again with no choke Replace with a new plug Case 2 Lack of power Poor acceleration Rough idling Check fuel for water or substandard mix ture Check air filter and fuel filter for clogging 4 Check carburetor for inadequate ad justment Check muffler and cylinder exhaust port Replace with proper fuel Clean Readjust speed needles Wipe away carbon buildup Case 3 Oil does not come out Check oil for sub standard quality gt Replace 4 Check oil passage and ports for clog Clean ging When your unit seems to need further service please consult with our service shop in your area FEDERAL AND CALIFORNIA EMISSIONS CONTROL WARRANTY STATEMENT YOUR WARRANTY RIGHTS AND OBLIGATIONS The EPA U S Environmental Protection Agency CARB California Air
31. talling guide bar and saw chain 4 5 A standard saw unit package contains the items as illustrated F1 1 Power unit 2 Guide bar 3 Saw chain 4 Plug wrench 5 Screwdriver for carburetor adjustment Open the box and install the guide bar and the saw chain on the power unit as follows AWARNING The saw chain has very sharp edges Use thick protective gloves for safety 1 Pull the guard towards the front handle to check that the chain brake is not engaged 2 Loosen the nuts and remove the chain cover 3 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 F2 1 Tensioner nut 2 Chain cover Pay attention to the correct direction of the saw chain F3 1 Moving Direction 4 Fit the chain cover to the power unit and fasten the nuts to finger tightness 5 While holding up the tip of the bar adjust the chain tension by turning the tensioner screw until the tie straps just touch the bottom side of the bar rail F4 6 Tighten the nuts securely with the bar tip held up 12 15 N m Then check the chain for smooth rotation and proper tension while moving it by hand If necessary readjust with the chain cover loose 7 Tighten the tensioner screw 2 Loosen 3 Tighten GZ4500 4 Tensioner screw 5 Lift up
32. ts and disruption of engine lubrication 3 OIL FOR 4 CYCLE ENGINE USE It can cause spark plug fouling exhaust port blocking or piston ring seizure 4 Mixed fuels which have been left unused for a period of one month or more may clog the carburetor and result in the engine failing to operate properly 5 In the case of storing the product for a long period of time clean the fuel tank after rendering it empty Next Start the engine and run the carburetor dry residual fuel 6 In the case of scrapping the used mixed oil container scrap it only at an authorized depository site e 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 type of oil or fuel to be used described therein it may not be covered by the warranty E CHAIN OIL Use motor oil SAE 10W 30 all year round or SAE 30 40 in summer and SAE 20 in winter e I Do not use wasted or regenerated oil that can cause damage to the oil pump US 9 GZ4500 8 Operation AWARNING 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 E STARTING THE ENGINE 1 Fill fuel and ch
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