PDF Service Manual
Contents
1. CAUTION Keep the test plug AWAY from the cylinder opening during testing so that it will not ignite fuel vapors escaping from the combustion chamber If the engine has spark and the spark plug is the fuel system needs to be thoroughly examined Disconnect the fuel line from the carburetor and check it for cracks pin holes or obstructions Connect a pressure gauge to one end of the hose pinch the other end shut pump air into the hose and see if it holds pressure Also inspect the fuel filter to see if it needs replacing If the fuel line is in satisfactory condition the carburetor needs to be Inspected CARBURETOR The carburetor is designed so that it does not have to be removed in order to perform maintenance However should you desire to remove the carburetor for easier access to its components it is a simple matter of taking out the screws on either side of the air intake passage This carburetor is specially designed for use on CS While other JCB CUT OFF SAW TROUBLESHOOTING DIAGNOSIS amp REMEDIES carburetors may fit they are not governed to CS s specifications and could cause dangerous overspeeding of the blade Remove the carburetor pump cover and check the fuel inlet screen for foreign material Whenever installing a carburetor diaphragm gasket kit remember that on the meter side the gasket goes next to the casting the diaphragm sets on top of it and then the cover On the pump side the dia2. DISASSEMBLY AND ASSEMBLY PROCEDURES BELT COVER The belt cover can be removed Remove the two bolts on the side Now relieve tension on the belt by turning the belt tension SCrew CUTTING ARM The cutting arm can be removed as a unit for access to the engine and other components Remove the two nuts that hold the cutting arm frame to the engine and the clutch cover in place Remove the clutch cover and tilt the cutting arm at a sharp angle away from the engine for clearance of the cutting arm frame from around the clutch BLADE FLANGES The outer flange slips off easily The inner flange should come off with a firm pull Inspect the flanges for scoring or edge wear The flat surfaces that come in contact with blades should be smooth and free from wear The keyways and pilots or interior surfaces of the holes should also be free of wear BLADE DRIVE PULLEY Put the pin back into the locking hole so a wrench can be used to remove the pulley nut Rotate the pulley while prying it with a screwdriver until tt comes off the shaft BLADE SHAFT Using a press with proper tools seat the unit so that the shaft can slide out when pressure is applied In the field a large socket works well when used with a rawhide or plastic mallet BLADE SHAFT BEARINGS much the same fashion support the frame so that with a suitable punch the bearings can be tapped out Do not try to tap them out from the same side come
3. DECOMPRESSION VALVE To remove the decompression valve use a wrench to unscrew the valve from the cylinder wall Decompression vales collect carbon over a period of time so it is a good idea to clean it regularly A dirty decompression valve may not close completely causing the engine to lose compression power CRANKCASE Remove the fuel line and take out the connecting nipple There is a screw under the nipple that must be removed to separate the crankcase halves There are also other bolts in this area When these bolts have been removed pull the crankcase evenly by your hand it should pop the crankcase halves off evenly Do not use a screwdriver to pry the crankcase apart CRANKSHAFT To remove the crankshaft from the case half using a press with proper tools seat the unit so that the shaft can slide out when pressure is applied In the field a large socket works well when used with a rawhide or plastic mallet Ensure the crankshaft out of the crankcase half not drop on the floor MAIN CRANKSHAFT BEARING Inspect the bearings while they are on the shaft by standing the shaft on end and rotating the bearings while applying downward pressure with your hand A good bearing will rotate smoothly A bad bearing will feel slightly grainy during rotation Also look for signs of overheating blue discoloration of the bearings and connecting rod Inspect the bearings for play A slight rocking play of the connecting rod is
4. Before leaving the factory the carburetor is basically set If you would like to set the basic set again please close the engine check if the air filter is clean tighten the H high speed screw and L low speed screw clockwise to the end carefully and then rotate the H speed screw 2 turns while L speed screw 2 4 turns basic set Run the engine for five minutes If the high speed of engine is too high or too low adjust T idle speed screw to make the rotation speed of engine be approximate to 2500 rpm Adjust the low speed screw first While the engine is idling rotate the low speed screw clockwise until the engine speeds up and becomes too lean Note the position of the needle slot then turn the screw out until the engine runs too rich Again note position of the needle slot then turn the screw back in half way between the two noted positions H high speed screw L low speed screw T idle speed screw To adjust the high speed screw start the engine and run it wide open Lower the blade into a cut to put the engine under load Apply enough pressure to stall the clutch for three to five seconds Be careful stalling the clutch for any longer than five seconds can cause it damage If the engine stalls when the clutch is stalled the mixture is too lean Adjust the high speed screw 1 8 ofa turn richer and try the stall test again Repeat the test if necessary It will lead to the decline of the power overheate
5. OK but ifthe connecting rod plays up and down the crankshaft needs to be replaced Ifthe main bearings have to be removed from the crankcase using press with proper tools the bearing can slide out easy ASSEMBLY CRANKCASE CRANKSHAFT MAIN CRANKSHAFT BEARING Support the frame well with a suitable punch the bearings be press into the frame When installing new bearings it is important to apply pressure ONLY to the outer race Replace the crankcase gaskets and then line the two dowel pins up and slip the two halves together Use Loctite on all the crankcase screws Rotate the crankshaft to check for binding as you continue to tighten the screws The crankshaft should be able to spin freely If it does not loosen the screws and tap the crankcase halves with a rawhide mallet until they align precisely enough to allow free spinning of the crankshaft Tighten down the screws evenly from 40 to 53 inch pounds JCB CUT OFF SAW DISASSEMBLY AND ASSEMBLY PROCEDURES CRANKSHAFT SEALS Use a screwdriver to pry the seal apart much the same fashion slide the new seal over the steps on the crankshaft being careful not to damage the seal RECOIL ASSEMBLY Relieve pretension on the rewind spring by holding the pulley and unwrapping the rope from the pulley or simply cut the rope at the handle It is suggested that the rope always be replaced when servicing the starter assembly Loosen the scre
6. follow it with the locking nut and tighten it down torquing it from 228 to 252 inch pounds The locking nut should not be used if it be screwed on completely without a wrench Pull the clutch off the crankshaft To remove the shoes and spring insert a large screwdriver in one of the openings between a shoe and the hub and pry outward When the shoe is out far enough for the spring to clear the hub arm pry it out with a smaller screwdriver The whole unit will come apart easily now To reassemble install the driver and two shoes easily and roll the spring into its proper location then squeeze the third shoe into place Inspect the clutch springs driver and shoes for wear or damage The back washer protects the seals from the clutch drum rubbing on it The drum bearing is pressed into place The clutch may have three shoes It is available as a replacement assembly IGNITION MODULE Remove the ground lead from the ignition module and inspect it for shorts cuts or breaks Check the high tension lead and make sure there are no cuts or short circurts it Take out the two screws and the ignition module is now free When reinstalling the ignition module use a feeler gauge to set the gap between the flywheel and ignition module an 012 to 016 Rotate the flywheel so that the magnet is near the ignition module during this setting Tighten the ignition module securely use Loctite when the proper gap is est
7. in from the opposite side with the punch Bearings are never reinstalled The only time they are removed 15 when they are to be replaced with a new set There are two spacers one is between the bearings the other is between the bearing and the pulley When installing new bearings it is important to apply pressure ONLY to the outer race Press the bearing onto the shaft first then press the shaft bearing into the frame Finally press the other bearing into the frame using the shaft as a guide JCB CUT OFF SAW DISASSEMBLY AND ASSEMBLY PROCEDURES IF YOU HAVE ANY FURTHER QUESTIONS PLEASE CONTACT YOUR DEALER OR CALL 44 0 1332 226699 FOR TECHNICAL QUESTIONS Edge Tools amp Equipment Ltd Unit 9 Victoria Centre Victoria Way Pride Park Derby DE24 8AN Tel 44 0 1332 3210211 Fax 44 0 1332 210211 Email sales edgediamond com www jcbdiamond com JCB s Cut Off Saw is maunfactured under license by Edge Tools amp Equipment Ltd
8. will cause flooding A low lever will cause poor acceleration and poor idle To correct these conditions hold the inlet needle end of the lever in place and pry up or down on the other end of the lever until it is flush with the floor of the metering chamber The one way venting valve is located in the gas cap Only atmospheric pressure passes through this valve An external vent Is not necessary JCB CUT OFF SAW TROUBLESHOOTING DIAGNOSIS amp REMEDIES See if the inlet needle holds pressure before installing the metering diaphragm gasket and cover back in place Connect the pressure gauge to the carburetor and apply a minimum of Olbs pressure If the inlet needle does not hold pressure it will not allow even flow of fuel through the carburetor and must be replaced Place the gasket next to the casting then connect the button on the underside of the diaphragm to the fork of the inlet lever The carburetor Is equipped with a governor that controls the maximum speed of the engine The governor is vibration activated The governor is made up of a brass capsule a calibrated spring steel ball and seat JCB s governor is unique to the CS Best suited for diamond blade cutting When ordering a new governor refer directly to the number inscribed directly on the governor that is being replaced Setting the Carburetor Facing the adjusting hole on its left side is a high speed screw On its right side is a low speed screw
9. 00 the cylinder should be replaced Look for blue discoloration of the wrist pin piston bearings and connecting rod This discoloration 15 a sign of overheating and may mean the bearings and piston are ruined Inspect the piston bearings making sure that there is no play between the connecting rod bearings and wrist pin only smooth rotation PISTON Remove the wrist pin clips with a pair of needle nose pliers These clips should not be reused and new ones should be in stalled on reassembly The wrist pin ts slip fit It will slide out of the sleeve with easy pressure With the wrist pin removed the piston will separate from the connecting rod Note that the closed end of the wrist pin goes on the same side as the exhaust port The piston 15 marked with an gt on the top The arrow always goes toward the exhaust port in reassembly JCB CUT OFF SAW DISASSEMBLY AND ASSEMBLY PROCEDURES MUFFLER The muffler is removed by taking out three bolts Loctite should be applied to the muffler bolts upon assembly Components of the muffler are the rear body cover three bolts one spacer a bracket CLUTCH Use a special tool to hold the flywheel This will hold the clutch and crankshaft in position for removal of the right hand threaded clutch nut JCB CUT OFF SAW DISASSEMBLY AND ASSEMBLY PROCEDURES Install the clutch in this sequence First the washer clutch drum slip the clutch on the crankshaft Second
10. SERVICE MANUAL JCB CUT OFF SAW CS 300 amp CS 350 A Product of Hard Work PETROL CUT OFF SAW www petrolsaw com Introduction How Iwo Stroke Engine Works Specifications Troubleshooting Diagnosis amp Remedies Questions to Ask Customers Look at the Air Filter First Quick Check of Piston and Cylinder Start of In Depth Testing If the Engine Will Not Start Carburetor Air Leaks Ignition system If there is no spark Lubrication Cooling System Disassembly and Assembly Procedures Air Filter Muffler Clutch Ignition Module Starter Pawls Flywheel Decompression Valve Main Crankshaft Bearing Assembly of Crankcase Crankshaft and Main Crankshaft Bearing Crankshaft Seals Recoil Assembly Blade Drive Pulley 2 2 22 22 2222 3 00 50 Blade Shaft or Spindle Blade Shaft Bearings 2 2 13 9 13 14 14 14 14 14 5 HOW TWO STROKE ENGINE WORKS The two cycle engine 15 used almost exclusively in hand held gasoline power equipment The CS saw 15 of typical design yet incorporates unique features which maximize performance to meet the heavy demands of the construction industry The carburetor performs the same function as with other engines It mixes the fuel with air in a fixed ratio to assure the most efficient combustion of the fuel The fuel vapor travels through the crankcase on its way to the combustion chamber and provides a cooling effect as well a
11. Since complete engine cycle takes two strokes of the piston this type of engine is known as two stroke or two cycle A thorough understanding of the principles of two cycle engine operation 15 your key to servicing the saw Review this service manual carefully and keep it nearby when working on CS saw SPECIFICATION Bore amp Stroke Displacement Compression Ratio Compression Pressure Piston Ring Gap Spark Plug Spark Plug Gap Flywheel Module Gap Fuel Capacity Fuel Oil Mix Ratio Clutch RPM Max Engine Blade Shaft RPM No Load Starter Cord 1 89 x 1 34 48mm 34mm 3 8 50psig 1035 0 088 0 10 2 24mm 2 54mm NGK BPMR7A 0 025 0 63mm 0 012 0 016 0 3mm 0 4mm 50 10 3 Shoes Centrifugal 8500 5000 So 60 157 TORQUE SPECIFICATION NOTES Air Filter Cover Screw 40 50 in Ibs Cylinder Base Screw 130 142 in Ibs Cylinder Base Screw 130 160 in lbs Spark Plug 177 204 in lbs Carburetor Mounting Screws 44 53 in lbs Muffler Bolts 53 62 in lbs Reed to Crankcase Screws 62 70 in lbs Clutch Nut 9 21 165 Shock Mounts 53 62 in lbs Ignition Module Screws 30 40 in Ibs Decompression Valve 130 160 in Ibs Starter Pawl Screw 70 89 in lbs 30 40 in Ibs 40 53 in 165 53 70 in Ibs 133 166 in Ibs 22 25 ft Ibs 40 44 ft Ibs TROUBLESHOOTING DIAGNOSTIC amp REMEDIES QUESTIONS TO ASK C
12. USTOMERS Basic questions to ask customers when they bring a CS saw in for repair What did it sound like when it stopped Have you noticed the problem before How long has it been since you last operated it Is tt hard to start 22 When was it tuned up and serviced last Use systematic approach There are six systems involved CS saw These are Filter System Fuel System Ignition System Pressure System Cooling System Lubrication System Complete disassembly and assembly instructions are included later in this book Always document everything you re told about the saw for reference on a repair tag or service order form Review your notes on what the customer told you about the saw but do not take his word as absolute proof It is important to do your own diagnosis JCB CUT OFF SAW TROUBLESHOOTING DIAGNOSIS amp REMEDIES LOOK AT THE AIR FILTER FIRST The first place to look is the air filter assembly It is easy to sight contaminants that have leaked in through the air filter assembly The inside of the rubber carburetor boot should be free from any dust The cause for this is most often operator error not reinstalling the air filter assembly correctly or not cleaning and replacing filter elements often enough QUICK CHECK OF PISTON AND CYLINDER Another quick way to detect engine problems without a major overhaul 15 to remove the muffler and look at the piston through the exhaust port f
13. ablished The gap should be consistent at all points of the ignition module that come close to the flywheel Connect the ground wire to the ignition module JCB CUT OFF SAW DISASSEMBLY AND ASSEMBLY PROCEDURES STARTER PAWLS The starter pawl consists of the hold down bolt the pawl washer and a spring All these parts should be checked for wear The pawls should be lubricated with a DRY graphite or molybdenum grease DO NOT use wheel bearing grease Once the pawl is removed the right hand thread nut on the flywheel may be taken off There is a washer under the nut and the steel hub should be checked for cracks or signs of damage FLYWHEEL A special flywheel and crankcase puller is used to remove the flywheel With a piston stop in place put the puller over the crankshaft thread the screws into the pawl bolt holes and turn the jack screw until the flywheel pops off A half inch wrench is used to turn the jack screw in Use a pair of side cutters to remove the flywheel key To reassemble the flywheel install the flywheel key and put the flywheel on the crankshaft followed by the washer and flywheel nut Insert the piston stop to hold the crankshaft in place Tighten the flywheel nut with a torque wrench to240 to 300 inch pounds Use Loctite on the nut Note that a broken fin will throw the balance of the flywheel off and hamper the smooth cycle of the engine JCB CUT OFF SAW DISASSEMBLY AND ASSEMBLY PROCEDURES
14. d and malfunction of the engine ifthe concentration of mixture which Is set by H high speed screw is too low The high speed screw is used to adjust the maximum power instead of maximum speed AIR LEAKS An air leak is best detected when the engine Is idling The engine will run stable for three to five seconds then speed up slow down then speed up again until t suddenly quits in a lean condition To test for air leaks spray WD 40 around the cylinder base gaskets the carburetor and manifold gaskets and the driveside crankcase seal while the engine is idling in this lean condition Watch for air bubbles which would indicate an air leak lf this method does not reveal the air leak remove the carburetor and muffler and bland these areas off with the bland off plates provided in the air leak tester kit Leave the spark plug in place attach a pressure gauge to the nipple fitting of the carburetor and apply approximately 8 Ibs of pressure to the crankcase Put soapy water around the gasket seals and watch for bubbles revealing a leak You may have to immerse the entire engine in a vat of water or kerosene to detect the problem area The decompression valve may have a tendency to leak a little air This does not mean that it is faulty but cleaning the decompression valve will improve its seal For the air leak test you may find it desirable to remove the decompression valve and block the socket with the plug provided in the air leak
15. etor can be easily lifted out CYLINDER Turn the crankshaft until the piston is in the lowest position Then loosen and remove the four hex head bolts that hold the cylinder to the crankcase The cylinder should separate from the crankcase with minimal effort Inspect the base gasket to ensure there has been no leakage This gasket should be replaced on reassembly of the saw Torque the four hex head bolts down to between 130 and 142 inch pounds Be sure to use an x pattern when tightening these bolts to assure an even seal A ring compressor provides an easy way to compress the rings during installment of the cylinder but if one 15 not available it can be done by hand 5 5 Test for wear of the piston ring groove with a feeler s gauge There should be no more than 010 space between the ring and groove The two piston rings can easily be popped out of the slots in the piston When installing the rings make sure that they are lined up with the pin in the piston ring s groove Check the ring end gap by removing the rings and placing them in the cylinder Use the top of the piston to push the ring into the cylinder Note that the ring should not be able to fall into the cylinder freely some pressure should be necessary It should be a sung fit Measure the end gap with a feeler s gauge at the bottom and top of the cylinder The end gap should not exceed 0 100 If the end gap does exceed 0 1
16. or signs of damage A bluish discoloration means the unit has overheated Vertical scratches mean contaminants have gotten inside the engine Either case means a major overhaul will be necessary to fix the saw START OF IN DEPTH TESTING Further in depth testing will be necessary if inspection of the air filter system and piston doesn t reveal any probable causes for saw malfunction Add fresh fuel mix in the fuel tank and make sure the fuel pick up filter is situated in the bottom of the tank Make sure the carburetor mixture needles are at one turn open Pull the starter rope at least one dozen times to get a feel for the engine s compression CAUTION It is permissible to start an engine without the cutting arm installed but DO NOT start it with a threaded clutch driver to hold the clutch in place Use a nut instead There is a very real danger of the clutch driver coming loose and striking the operator IF THE ENGINE WILL START If the engine will not start pull the spark plug If it is wet with fuel either the plug is faulty the carburetor is flooding the reed valve is broken or the electrical system is not producing a spark Use a test plug to test the electrical system A standard spark plug is not recommended because it does not simulate the compressed environment that a test plug does and consequently does not require as much voltage to fire A test plug will reveal problems that a standard plug would not
17. phragm goes next to the casting the gasket sets on top of it then the cover Sticking Needles Attach a pressure gauge to the fuel inlet nozzle of the carburetor and pump pressure into the carburetor When the metering diaphragm is depressed pressure should fall on the gauge If it does not the carburetor inlet needle is stuck causing fuel starvation In this case the carburetor would have to be disassembled and cleaned to solve the problem Test the reed valve for air tightness by holding it up to a light and seeing if any light is visible between the reed and reed case Disassemble the reed valve and inspect the reed case for damage Look carefully for scratches dents or abrasions on the surface area that meets with the reed Check the reed to see that it is not bent or scratched clean the carburetor First scrub the outside thoroughly Work on spread out sheets of paper for a low dust working surface Cleanliness 15 important Use a cleaner specially suited for a carburetor and a plastic bristled brush Remove the high speed needle and the low speed needle Inspect them for damage making sure they have not been bent from overtightening Clean them thoroughly Remove the high speed and low speed Welsh Plugs This can be done with a drill or punch The Welsh Plugs are comprised of a screen a clip and a plug Check the screen to see if any foreign material has been trapped by it causing disruption of fuel flow A
18. s critical lubrication to the engine components Oil is mixed with the gas to provide this lubrication The fuel vapor is drawn from the carburetor through the reed valve Negative pressure created inside the crankcase is the drawing force that opens the reed valve The negative pressure or vacuum is created the crankcase by two actions the upward movement of the piston and the scooping action of the crankshaft counterweight 2 Ator near Dead Center the ignition module provides the current spark to the spark plug Starting combustion The burning and expanding gases push the piston down providing the power stroke needed to turn the crankshaft 3 As the piston moves downward the exhaust port is exposed by the descending piston releasing the hot expanded gases exhaust out through the muffler 4 As the downward movement of the piston continues the intake port 15 exposed allowing new fuel vapor to enter the combustion chamber Positive pressure created the crankcase by the downward movement of the piston forces the vapor into the combustion chamber Note that this positive pressure the crankcase also closes the reed valve As the piston begins 5 upward motion beginning the compression part of the cycle the intake port is closed before the exhaust port Because of this some unspent fuel vapor is expelled through the exhaust port The cycle is now complete and starts over again
19. scratch in this area would cause the carburetor to flood and would have to be replaced Use a staking tool and small hammer to install the new Welsh Plugs Apply lacquer paint to the outside of the Welsh Plugs to insure an airtight seal Replace all three components of the Welsh Plug when rebuilding the carburetor If the throttle return spring is broken the throttle plate has to be removed to access the spring Scribe a mark on the throttle plate before it is removed to provide a reference point for reinstallation The throttle plate appears to be round but is actually oval Consequently it is very important to install it in the same position If the plate is put upside down or backwards it may stick in the throttle bore resulting an erratic idle A screw in the middle of the throttle plate 15 all that holds it in place Always use Loctite on the throttle plate and screw when installing JCB CUT OFF SAW TROUBLESHOOTING DIAGNOSIS amp REMEDIES Cold hard starting and or erratic idle may also be caused by wear on the throttle and choke shafts Check the chrome plating to see if it has been worn off from vibration The worn shafts will allow dirt to work tts way into the carburetor and cause damage to the power head Connect the fork to the inlet needle for the installation of the metering lever Use a straight edge to check its height The lever should be flush with the floor of the metering chamber A high lever
20. spark plug will be powdery white and the inside of the muffler will be very dry COOLING SYSTEM The cooling is comprised of three components the fan housing flywheel and cylinder fins It is important for an operator to clean these parts regularly to prevent overheating DISASSEMBLY AND ASSEMBLY PROCEDURES Always empty the gas tank before starting to disassemble the saw AIR FILTER The filter system is made up of pre filter sponge paper filter inner filter Prior to disassembly clean the exterior of any dust or dirt to avoid contaminates from entering the carburetor Inspect the washer gasket and filter housing gasket for damage Rinse the pre filter sponge in warm soap water Before fitting soak it in to the engine oil and squeeze out extra oil Clean the inner filter by using gasoline To get to the cylinder and piston the following must be removed in this order Cutting Arm See page 18 Starter Cover 2 Filter fix foundation 3 Carburetor JCB CUT OFF SAW DISASSEMBLY AND ASSEMBLY PROCEDURES STARTER COVER The starter cover is held place with four screws two in the bottom frame and two at the top FILTER FIX FOUNDATION The filter fix foundation 15 held in place by three screws CARBURETOR The carburetor does not have to be removed to service it Loosen the two screws on either side of the carburetor throat Disconnect the choke throttle linkage and the fuel line Now the carbur
21. test kit IGNITION SYSTEM Problem Engine fails to start Check for spark using test plug 2 Check ignition switch 3 Check all wires and connections IF THERE IS NO SPARK lf there is no spark you will need a continuity tester a test spark plug and a high tension lead The ignition module cannot be serviced It has to be replaced if it is not working Disconnect the ignition switch and turn the engine over The engine must be turned over at least 600 to 800 RPM to energize the system If the test plug produces a spark the ignition switch is faulty Simply replace it If the switch is not the problem disconnect the other end of the switch wire from the ignition module Replace the starter housing and turn the engine over If the test plug produces a spark this time tt means that the switch wire is damaged and needs to be replaced lf the problem is still undetected the next step is to test the flux levels magnetic pulling power of the flywheel magnets using a screwdriver Experience will tell you what is adequate Check the gap between the flywheel and the ignition module It should be 0 012 to 0 018 Ifthe high tension lead passes a continuity and leakage test it means the ignition module has to be replaced LUBRICATION Pistons scored from top to bottom mean the engine was not getting adequate lubrication When disassembled the wrist pins will be blue in color the main bearings will be very dry the
22. w in the center of the pulley and carefully slip the pulley off the starter so as not to cause the rewind spring to unravel Do not lubricate the rewind spring with any kind of lubricant Inspect all components for wear or damage including the starter pawls and spring on the flywheel Clean all parts thoroughly and replace any worn parts Lubricate starter pawls with a dry graphite or molybdenum grease Do not use wheel bearing grease Tie a knot in the end of the rope and thread the other end through the hole in the pulley and out the hole in the recoil housing Pull it all the way through and push the knot down into the hole making sure that it does not protrude Wind the 2 3 rope around the pulley anticlockwise and thread the end of rope through the side hole on the pulley After rotate the pulley three turns clockwise return the rope to the groove of the pulley At the force of recoil spring the 3 rope will completely wind around the pulley Install the pulley onto the starter Make sure that it is engaged with the rewind spring Tighten the pulley screw down making sure the flat washer 15 positioned properly on the shaft BLADES Removing a Blade Loosen the blade flange bolt with a wrench To prevent the blade shaft from turning insert a pin into the small hole in the front of the belt guard far enough to enter the hole in the inside flange The flange hole and belt guard hole need to be lined up JCB CUT OFF SAW
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