390 XP®, 390 XP®G EN Operator's manual 2-37
Contents Introduction..................................................................... 2 Troubleshooting............................................................ 32 Safety..............................................................................3 Transportation and storage...........................................33 Assembly........................................................................ 9 Technical data.............................................................. 33 Operation....
. Chain brake and front hand guard 4. Starter housing 5. Chain oil tank 6. Starter rope handle 7. Adjuster screws carburetor 8. Choke control 9. Rear handle 10. Start/stop switch 11. Fuel tank 12. Muffler 13. Bar tip sprocket 14. Saw chain 15. Guide bar 16. Spiked bumper 17. Chain catcher 18. Clutch cover 19. Right hand guard 20. Throttle trigger 21. Throttle trigger lockout 22. Decompression valve 23. Combination wrench 24. Chain tensioning screw 25. Operator's manual 26. Transportation guard 27.
CAUTION: Used if there is a risk of damage to the product, other materials or the adjacent area if the instructions in the manual are not obeyed. • • Note: Used to give more information that is necessary in a given situation. General safety instructions • WARNING: Read the warning instructions that follow before you use the product. • • • • • • A chainsaw is a dangerous tool if used carelessly or incorrectly and can cause serious injury or death.
• Lack of concentration can lead to kickback if the kickback zone of the bar accidentally touches a branch, nearby tree or some other object. • • • • • • Never use the product by holding it with one hand. This product is not safely controlled with one hand. Always hold the product with both hands. The right hand should be on the rear handle, and the left hand on the front handle. All people, whether right or left handed, should use this grip.
the front hand guard (B) forward to engage the chain brake manually. B A • • • • • • • • • • Most chainsaw accidents occur when the saw chain touches the operator. You must use approved personal protective equipment during operation. Personal protective equipment does not give you full protection from injuries but it decreases the degree of injury if an accident occurs. Speak to your servicing dealer for recommendations about which equipment to use.
the saw chain breaks or derails. The right hand guard also gives you protection from branches or twigs. areas with a hot, dry weather there is a high risk of fire. Obey local regulations and maintenance instructions. Vibration damping system The vibration damping system decreases vibration in the handles. Vibration damping units operate as a separation between the product body and the handle unit.
• • • If you have spilled fuel or chain oil on the product. Wipe off the spillage and allow remaining fuel to evaporate. If you have spilled fuel on yourself or on your clothes. Change your clothes and wash any part of your body that has come in contact with fuel. Use soap and water. If the product leaks fuel. Regularly do a check for leaks from the fuel tank, fuel cap and fuel lines. • Keep the correct depth gauge setting. Obey the instructions and use the recommended depth gauge setting.
Assembly Introduction WARNING: Read and understand the safety chapter before you assemble the product. WARNING: Always use protective gloves when you assemble the saw chain. 5. Make sure that the edges of the cutters point forward on the top edge of the guide bar. To assemble the guide bar and saw chain 1. Move the front hand guard rearward to disengage the chain brake. 2. Remove the bar nuts, clutch cover and transportation guard (A). 6.
4. Make sure that the start/stop switch operates correctly and that it is not damaged. Speak to your servicing dealer to select the correct oil. 5. Make sure that there is no oil on the handles. CAUTION: Do not use two-stroke oil for water-cooled outboard engines, also referred to as outboard oil. Do not use oil for four-stroke engines. 6. Make sure that the vibration damping system operates correctly and that it is not damaged. 7.
2. Clean the area around the fuel tank cap. CAUTION: If the oil is too thin, it runs out before the fuel. In temperatures below 0°C/32°F some chain oils become too thick, which can cause damage to the oil pump components. • 3. Shake the container and make sure that the fuel is fully mixed. • • • Use the recommended cutting equipment. Refer to Accessories on page 35. Remove the cap to the chain oil tank. Fill the chain oil tank with chain oil. Attach the cap carefully. 4.
A smaller bar tip radius decreases the force of the kickback. 1. Move the front hand guard forward to engage the chain brake. Use a low kickback saw chain to decrease the effects of kickback. Do not let the kickback zone touch an object. WARNING: No saw chain fully prevents kickback. Always obey the instructions. Common questions about kickback • • • Will the hand always engage the chain brake during a kickback? 2. Set the start/stop switch to on. 3.
1. Move the front hand guard forward to engage the chain brake. 3. Put your right foot into the footgrip on the rear handle. 4. Pull the starter rope handle slowly with your right hand until you feel resistance. WARNING: Do not twist the starter rope around your hand. 2. Set the start/stop switch to on. 5. Pull the starter rope handle quickly and with force. 3. Pull out and push in the choke control. 4. Push the decompression valve.
To stop the product • Push the start/stop switch down to stop the engine. To use the cutting technique Pull stroke and push stroke You can cut through wood with the product in 2 different positions. • • To cut on the pull stroke is when you cut with the bottom of the guide bar. The saw chain pulls through the tree when you cut. In this position you have better control of the product and the position of the kickback zone. To cut on the push stroke is when you cut with the top of the guide bar.
2. Cut approximately ⅔ through the trunk and then stop. Turn the trunk and cut from the opposite side. 2. Cut through the remaining part of the trunk on the push stroke to complete the cut. 1. 1. 2. 2. To cut a trunk that has support on one end WARNING: Make sure that the trunk does not break during cutting. Obey the instructions below. WARNING: Stop the engine if the saw chain gets caught in the trunk. Use a lever to open up the kerf and remove the product. Do not try to pull the product out by hand.
b) Select the applicable cutting technique for the tension in the branch. WARNING: If you are not sure about how to cut the branch, speak to a professional chainsaw operator before you continue. 2. Remove the limbs on the top of the trunk. a) Keep the product on the trunk and let the guide bar move along the trunk. b) Cut on the push stroke. a) Select the applicable cutting technique for the tension in the branch.
complete. It is important that you hear sounds and warning signals. 2. Make sure that no person is in the risk zone before or during felling. To clear the trunk and prepare your path of retreat Cut off all branches from your shoulder height and down. 1. Cut on the pull stroke from the top down. Make sure that the tree is between you and the product. To calculate the felling direction 1. Examine in which direction it is necessary for the tree to fall.
The felling hinge To use the safe corner method The most important procedure during tree felling is to make the correct felling hinge. With a correct felling hinge, you control the felling direction and make sure that the felling procedure is safe. The felling cut must be made slightly above the directional cut. The thickness of the felling hinge must be equal and a minimum of 10% of the tree diameter. WARNING: If the felling hinge is incorrect or too thin, you have no control of the felling direction.
b) Cut on the pull stroke through the remaining trunk. c) Cut straight into the trunk from the other side of the tree to complete the felling hinge. d) Cut on the push stroke, until ⅓ of the trunk is left, to complete the safe corner. The safest procedure is to use one of the following winches: • Tractor-mounted • Portable 3. Put a wedge in the kerf straight from behind. 4. Cut off the corner to make the tree fall. Note: If the tree does not fall, hit the wedge until it does.
5. Make one or more cuts of sufficient depth necessary to decrease the tension. Cut at or near the point of maximum tension. Make the tree or branch break at the point of maximum tension. engine temperature or ice on the air filter and the carburetor. 1. In conditions with snow, a winter cover is available. Assemble the winter cover on the starter housing. The winter cover decreases the flow of cool air and keeps snow away from the carburetor space.
Maintenance schedule Daily maintenance Weekly maintenance Monthly maintenance Clean the external parts of the product and make sure that there is no oil on the handles. Clean the cooling system. Refer to Do a check of the brake band. Refer to To do a check of the brake band on page 22. To clean the cooling system on page 31. Do a check of the throttle trigger and Do a check of the starter, starter rope Do a check of the clutch centre, throttle trigger lockout. Refer to To do and return spring.
Daily maintenance Weekly maintenance Monthly maintenance Make sure that there is no damage on the right hand guard. Make sure that the muffler is correctly attached, has no damages and that no parts of the muffler are missing. Maintenance and checks of the safety devices on the product 4. Let go of the front handle and let the guide bar tip fall against the stump. To do a check of the brake band 1. Use a brush to remove wood dust, resin and dirt from the chain brake and clutch drum.
To do a check of the throttle trigger and throttle trigger lockout 1. Make sure that the throttle trigger and throttle trigger lockout move freely and that the return spring works correctly. 2. Press down the throttle trigger lockout and make sure that it goes back to its initial position when you release it. To do a check of the right hand guard • Make sure that the right hand guard is not damaged and that there are no defects, such as cracks. To do a check of the vibration damping system 1.
2. Make sure that the muffler is correctly attached to the product. Basic adjustments and run-in The basic carburetor adjustments are done at the factory. For the recommended idle speed, refer to Technical data on page 33. CAUTION: Do not operate the product at too high speed during the first 10 hours of operation. CAUTION: If the saw chain rotates at idle speed, turn the idle speed screw counterclockwise until the saw chain stops. To adjust the low speed needle (L) 3.
• • • Make sure that the product 4-cycles a little at full throttle. Make sure that the saw chain does not rotate at idle speed. If the product is not easy to start or has less acceleration capacity, adjust the low and high speed needles. CAUTION: Incorrect adjustments can cause damage to the engine. 7. Attach a new starter rope to the pulley. Wind the starter rope approximately 3 turns around the pulley. 8. Connect the pulley to the recoil spring. The end of the recoil spring must engage in the pulley.
6. Make sure that you can turn the pulley ½ turn after the starter rope is fully extended. 3. Attach the air filter and make sure that the air filter seals tightly against the filter holder. Note: Because of different work conditions, weather or season, your product can be used with different types of air filter. Speak to your servicing dealer for more information. To assemble the starter housing on the product 1. Pull out the starter rope and put the starter in position against the crankcase. 2.
To sharpen the saw chain • Bar groove width, in/mm. The groove width in guide bar must be the same as the chain drive links width. • Chain oil hole and hole for chain tensioner. The guide bar must align with product. • Drive link width, mm/in. Information about the guide bar and saw chain WARNING: Use protective gloves when you use or do maintenance on the saw chain. A saw chain that does not move can also cause injuries.
• Filing angle. Note: Refer to Accessories on page 35 for information about which file and gauge that Husqvarna recommends for your saw chain. 2. Apply the file gauge correctly on to the cutter. Refer to the instruction supplied with the file gauge. 3. Move the file from the inner side of the cutting teeth and out. Decrease the pressure on the pull stroke. • Cutting angle. • File position. 4. Remove material from one side of all the cutting teeth. • Round file diameter. 5.
recommend you to adjust the depth gauge setting after each third operation that you sharpen the cutting teeth. 4. Tighten the saw chain until it is tight against the guide bar but still can move easily. We recommend that you use our depth gauge tool to receive the correct depth gauge setting and bevel for the depth gauge. 1. Use a flat file and a depth gauge tool to adjust the depth gauge setting. Only use Husqvarna depth gauge tool to get the correct depth gauge setting and bevel for the depth gauge.
permanently attached to the clutch drum. A rim sprocket can be replaced. A • • B Regularly examine the chain drive sprocket for wear. Replace the chain drive sprocket if there is too much wear. Replace the chain drive sprocket when you replace the saw chain. To examine the cutting equipment 1. Make sure that there are no cracks in rivets and links and that no rivets are loose. Replace if it is necessary. To lubricate the needle bearing 2. Make sure that the saw chain is easy to bend.
4. Examine the groove in the guide bar for wear. Replace the guide bar if it is necessary. 1. Turn the adjustment screw for the oil pump. Use a screwdriver or combination wrench. a) Turn the adjustment screw clockwise to decrease the chain oil flow. b) Turn the adjustment screw counterclockwise to increase the chain oil flow. 5. Examine if the guide bar tip is rough or very worn. + – 6. Make sure that the bar tip sprocket turns freely and that the lubricating hole in the bar tip sprocket is not blocked.
flywheel (C), the cooling fins on the cylinder (D) and the cylinder cover (E). 1. Clean the cooling system with a brush weekly or more frequently if it is necessary. 2. Make sure that the cooling system is not dirty or blocked. E CAUTION: A dirty or blocked cooling system can make the product too hot, which can cause damage to the product. D C B A Troubleshooting The engine does not start Product part to examine Possible cause Action Starter pawls The starter pawls are blocked.
Product part to examine Possible cause Action Spark plug and cylinder The spark plug is loose. Tighten the spark plug. Engine is flooded because of repeated starts with full choke after ignition. Remove and clean the spark plug. Put the product on its side with the spark plug hole away from you. Pull the starter rope handle 6-8 times. Assemble the spark plug and start the product. Refer to To start the product on page 12.
Cylinder displacement, cm3 Husqvarna 390 XP Husqvarna 390 XPG 88 88 Idle speed, rpm 2700 2700 Maximum engine power acc. to ISO 8893, kW/hp @ rpm 4.8/6.5 @ 9600 4.8/6.5 @ 9600 Spark plug NGK BPMR 7A/ Champion PCJ 7Y NGK BPMR 7A/ Champion PCJ 7Y Electrode gap, mm 0.5 0.5 0.90/900 0.90/900 0.50/500 0.50/500 Automatic Automatic 7.3 7.5 Sound power level, measured dB(A) 117 117 Sound power level, guaranteed LWA dB(A) 119 119 107.5 107.5 Front handle, m/s2 6.5 6.5 m/s2 7.
Accessories Recommended cutting equipment Kickback and guide bar nose radius Chainsaw models Husqvarna 390 XP, 390 XPG have been evaluated for safety according to EN ISO 11681-1:2011 (Machinery for forestry - Portable chainsaw safety requirements and testing) and fulfill the safety requirements when equipped with the below listed guide bar and saw chain combinations. For sprocket nose bars the nose radius is specified by the number of teeth, such as 10T.
Guide bar Saw chain Length, in/cm Pitch, in Gauge, in/mm Max. nose radius Type Length, drive links (no.) 24/61 0.404 0.063/1.6 34 mm Husqvarna H64 76 28/71 84 30/76 42 mm 92 32/81 95 36/91 104 42/107 124 The usable cutting length is usually 1 in less than the nominal guide bar length. Pixel Pixel is a guide bar and saw chain combination that is more light weight and designated to offer more energy efficient use by cutting narrow cuts.
EC Declaration of Conformity EC Declaration of conformity Husqvarna AB, SE-561 82 Huskvarna, Sweden, tel: +46-36-146500, declares under sole responsibility that the chainsaws for forest service Husqvarna 390 XP, 390 XPG from 2016’s serial numbers and onwards (the year is clearly stated in plain text on the type plate with subsequent serial number), are in conformity with the requirements of the COUNCIL’S DIRECTIVES: • • • of May 17, 2006 ”relating to machinery” 2006/42/EC.
590 - 001 - 13.01.
590 - 001 - 13.01.
www.husqvarna.
