Husqvarna 50 Rancher Users Manual OM, 50, 1982 11, Chain Saw
50 Rancher ab464fdd-c777-4dd4-93fe-1a7288e34f8f
50 Rancher to the manual ab464fdd-c777-4dd4-93fe-1a7288e34f8f
2015-01-24
: Husqvarna Husqvarna-50-Rancher-Users-Manual-316964 husqvarna-50-rancher-users-manual-316964 husqvarna pdf
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Chain saw 50 Rancher TECHNICAL SPECIFICATION Displacement . . . . 48.7 cm3 Bore . . . . . . . . . . . 44 mm Stroke . . . . . . . . . . 32 mm Ignition advance . . . . . 26˚ before t.d.c. at 8400 rpm Sparking Plug . . . . Champion CJ 7Y Electrode gap . . . . 0.5 mm Carburettor . . . . . . Diaphragm type Owner’s maintenance manual Fuel tank capacity . . . .0.6 l Oil tank capacity . . . . . 0.3 l Sawing chain. . . . . . .325” pitch Guide Bar . . . . . . . . . . 15” (38 cm) Weight empty, incl. 38 cm guide bar , chain and chain brake . . . . . 6.0 kg I WHAT IS WHAT ON THE CHAIN SAW? 8 11 %-- E Tension the chain while holding up the bar tip. Do not tension the chain stronger than it can be pulled around by hand. Tighten the guide bar nuts. 5 1, 2. 3. 4. 5. 6. 7. Starter handle Oil filler cap Starter Front handle Fuel filler cap Ignition switch Throttle trigger ASSEMBLING 8. 9. 10, 11. 12. 13. 14. 6 7 NOTE! Do not forget to “run in” the chain and guide bar. Please see the chain manufacturer’s recommendation. --- Front hand guard Automatic chain brake Cylinder cover Choke Throttle latch Throttle trigger lockout Rear handle Check the chain tension frequently ance and durability for optimal perform- [ FUEL AND OIL GUIDE BAR AND CHAIN A. Undo the guide bar nuts and remove the clutch cover and transport packing piece. B. Place the guide bar into its rearmost position. Make sure that the chain tensioning stud is properly in the hole in the guide bar. NOTE! On no account waste oil should be used as this can damage the oil pump. C. Fit the chain around the drive sprocket and in the groove of the bar. Start on the upper side of the guide bar. Make sure that the cutting edges of the sawing teeth along the top of the guide bar are facing towards the tip. Also check that the drive links go down properly into the drive sprocket. D, Tension the chain so that it does not sag along the bottom of the guide bar. Check that the chain and guide bar fit properly. Fit the clutch cover and tighten the nuts fingertight only, Pull the chain a few turns around by hand and check that it can move freely. Mixing table 2 % Petrol in Imp. gallon Always top up with fuel and chain lubricant at the same time OIL MIXTURE: Husqvarna Twostroke Oil Ordinary twostroke oil Pre-mixed oil 1:50 (2 %) 1:25 (4 %) 1:20 (5 %) 4 % 5 Petrol in Imp, gallon Petrol in US gallon 5 1,1 1,3 5,2 10 2,2 13,2 25 5,5 Litres of oil Pints of oil Litres of petrol Petrol in US gallon 0,2 0,35 10 2,2 2,6 0,4 0,70 20 4,4 1,0 1,76 50 11,0 Litres of petrol Litres of petrol “10 Petrol in Imp. gallon Petrol In US gallon 4 0,8 1,0 2,6 8 1,7 2,1 6,6 20 4,4 5,2 MAINTAINING ADJUSTING THE CARBURETOR THE CHAIN BRAKE This chain saw is equipped with a new type of automatic chain brake that has been adjusted at the factory. It will need no further adjustment. The carburetor has three adjusting screws: L = Low speed needle H = High spaed needle T = Throttle adjusting screw Release the chain brake as soon as you move or cease working even if it is for a short break. Push the front hand guard to release the brake. ‘:” The carburetor During the break: . Check that the brake mechanism 3. Then screw the needles out to recommended is adjusted as follows: 1. Clean the air filter. 2. Screw the needles H and L carefully right in. works smoothly. basic position: H = 1 turn out L = 1 turn out If not, remove resin and sawdust. Check that supports and sliding surfaces are lubricated with grease or temperature-resistant engine oil. Apply full throttle and release the chain brake. The chain should immediately stop rotating. 4. Start the engine and warm it up. Adjust the idling speed by means of the throttle adjusting screw so that the chain starts rotating. 5. Adjust the low speed needle to reach the highest speed at which the engine is still idling, Then screw the needle out equivalent to 10 minutes on a clock-face. ~,, Use the following procedw’e to check that the automatic chain brake actuates correctly; Hold the chain saw horizontally abt 20 cm over a trunk. NOTE! Switch off the engine! Release your grip on the front handle. As the saw by force of its own weight swings around the rear handle and the guide bar tip hits the trunk, the brake should actuate. At the service workshop: Check that the brake mechanism sawdust and dirt. 6 Again adjust the idling speed by means of the throttle screw (see under 4 above) so that a speed of approx 2,500 r/rein is received. 7 ADDIV full throttle, At correct adjustment of the hiqh -. sDeed needle, the e’ngine should be fourstrok~ng. If this is not the case screw out the needle to reach a distinct fourstroke. Engine speed: Maximum 12,500 r/rein. and the brake band are free from Check the wear of the brake band. In unbraked position it must not touch the clutch drum. Check the wear of the chain brake mechanism. Check that the front hand guard is not damaged. Lubricate the supports and gliding surfaces of the front hand guard with grease or temperature-resistant engine oil. NOTE! Should the engine not be fourstroking, there is a risk of piston seizure. Adjust the high speed needle for maximum power and not for maximum speed! - CLEANING THE AIR FILTER In order to get at the air filter, remove the cylinder cover by undoing the three retaining screws and lifting the cover off upward% backwards, Lift off the filter carefully to prevent dirt from falling down into the carburetor. Rinse the filter in warm soap suds. Do not rinse in fuel, Reassemble the filter and make sure that it lies close to the carburetor. Use two filters alternately. Clean the filter daily. CHANGING STARTER CORD AND RETURN SPRING Loosen the four screws that retain the starter Remove the starter. Pull out the cord approx. 30 cm periphery of the pulley. Zero-set pulley rotate slowly backwards. pulley. If necessary, remove the Lubricate the new and lift up into the notch in the the return spring by letting the Undo the screw in the centre of the return spring and change it. springWiih engineoil. Assemble the remaining parts in reverse order of removal. Lift up the starter cord into the notch on the pulley. Tension the return spring by turning the pulley clockwise about two turns. NOTE! Make sure that it is possible to turn the pulley at least half a turn further when the cord is pulled out completely. STARTING THE CHAIN SAW Cold engine ... - _- ..-,’1, A$ \ 1. Switch on the ignition (push the ignition switch to the left so that the 1 is visible). 2. Push UII the choke control. NOTE! One of the most common causes of starting difficulties is that too many starting attempts have been made with a closed choke flap. If this is the case, remove the spark plug and wipe it dry. Open the choke flap fully. Before you reassemble the spark plug, pull the starter handle several times to “ventilate the cylinder”, the ignition switch in O-position. Fit the spark plug and make a new starting attempt with open choke flap and full throttle. CAUTION! Guide bar, chain and clutch cover must be fitted before the engine is started, otherwise the clutch may come loose and cause injuries. 3. Push down the throttle trigger lockout (A). 4, Open the throttle fully (B). 5. Push down the throttle latch (C). Now all controls are in starting position and the chain saw is ready to be started. 6. Put your right foot on the plate under the rear handle. 7. Grasp the front handle with your left hand and press the saw against the ground. 8. Grasp the starter handle with your right hand and pull out the starting cord slowly until the starter pawls engage. 9. Give the starting cord a sharp tug. NOTE! Do not pull out the starting cord entirely or release the starter handle in pulled out position, as this can cause damages on the chain saw. 10. Normally the engine will start after 2X3 starting attempts. Push down the choke control as soon the engine starts. Open rapidly the throttle wide and the latch will disengage. MAINTENANCE OF THE CHAIN SAW 3 ... 0. 4 13 14 10 Daily maintenance Weekly maintenance 1. 2, 3. 4, 5. 6. 7. 8. 9. 10. Check the starter, its cord and return spring 11. Clean the spark plug from the outside a“ndcheck the gap. Adjust the gap or change the plug if necessary. 12. File off burrs if any on the sides of the guide bar. Clean the saw body from the outside. Clean the air filter. ”Change if necessary. Turn around the guide bar, lower edge up. Clean the bar groove. Clean the air intakes in the starter cover. Clean the cooling fins on the cylinder. Clean the sDace under the clutch cover. Sharpen the chain and check its tension. Check the oiling system for the chain and the guide bar. Clean the chain brake. Make it a habit to release the chain brake during pauses and transports. 2 1 16 Monthly 13, 14. 15. 16. Wash Wash Clean Clean maintenance out out the the the fuel tank with petrol, the oil tank with petrol. carburetor. spark plug. 5 8 6 9 8 WINTER USE e % ,.’. -.. .,, .:. . . . ....{. :,. . ,. . In winter, extreme cold and powdery snow can cause running problems. The partition wall is prepared for cold working conditions. In the partition wall there is a hole, that is covered by a lid (A) when operating at normal temperatures, In case of extreme cold, this lid shall be removed so that heated air from the cylinder can flow into the carburetor space and prevent the air filter from being iced up. For operating under winter conditions there is a special winter kit available. This kit contains a rubber seal for mounting around the fuel hose and a cover plate which has to be mounted on the right side of the cylinder. I ~ f NOTE! Under normal temperature conditions the lid has to be closed. Otherwise there is a certain risk of overheating the chain saw. fl~~~normaltemperature conditions therubberseal and the cover plate have to be removed. Otherwise the engine will be overheated. SAFETY REMINDERS I Handling 1.When transporting the saw, fit the chain protection. 2, Do not smoke when filling the fuel tank, 3. Before cutting, fix the barking support properly. 4. When usina the saw, keetI both hands on the handles. Nobody is ~llowed to be within the swing area of the saw. :: Always stop the enqine before checkina and adiustina the ,chain tension or ex~hanging the chain.- Procedure 1. When felling, always step aside from the falling tree and watch out for falling branches. 2. When cutting split wood, look out for ejecting wood pieces. 3. When buckina a felled tree on slor)ina-., around. alwavs stand above the tre~. 4. Be calm and collected when working; eliminate the risk of injury to other persons. Personal safety equipment 1. To protect the hearing organ, wear protective wad, plugs or ear caps. 2. When cutting, wear gloves of chrome leather. 3. When felling, wear a protective helmet. 4. Wear suitable clothes which do not hinder your work I I Printed 1018 401-26A 20. 1 I-62 in Sweden mrmtr.~s Mo,,(. w
Source Exif Data:
File Type : PDF File Type Extension : pdf MIME Type : application/pdf PDF Version : 1.4 Linearized : Yes Create Date : 1996:03:28 16:09:15Z Subject : Modify Date : 2004:03:23 09:44:02-05:00 Page Count : 8 Page Mode : UseThumbs Page Layout : OneColumn Creation Date : 1996:03:28 16:09:15Z Producer : Husqvarna Forest & Garden Author : Husqvarna Forest & Garden Keywords : Mod Date : 2004:03:23 09:44:02-05:00 Metadata Date : 2004:03:23 09:44:02-05:00 Title : OM, Rancher 50, 1982-11, Chain Saw Creator : Husqvarna Forest & Garden Description :EXIF Metadata provided by EXIF.tools