Jonsered L4621 Operator'S Manual Download

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English

L4621

Operator’s manual

Please read the operator’s manual carefully and make sure you understand the instructions

before using the machine.

Summary of Contents for L4621

Page 1: ...English L4621 Operator s manual Please read the operator s manual carefully and make sure you understand the instructions before using the machine ...

Page 2: ...ipment Carefully read and follow all of the safety instructions below CHILDREN CAN BE INJURED BY THIS EQUIPMENT The American Academy of Pediatrics recommends that children be a minimum of 12 year of age before operating a pedestrian controlled lawn mower and a minimum of 16 years of age before operating a riding lawn mower Tragic accidents can occur if the op er a tor is not alert to the presence ...

Page 3: ...ne Gasoline is extremely flammable and the vapors are explosive Extinguish all cigarettes cigars pipes and other sources of ignition Use only an approved container Never remove gas cap or add fuel with the engine running Allow the engine to cool before refueling Never refuel the machine indoors Never store the machine or fuel container where there is an open flame spark or pilot light such as a wa...

Page 4: ...Explanation of warning levels The warnings are graded in three levels WARNING WARNING Used if there is a risk of serious injury or death for the operator or damage to the surroundings if the instructions in the manual are not followed IMPORTANT IMPORTANT Used if there is a risk of injury to the operator or damage to the surroundings if the instructions in the manual are not followed CAUTION CAUTIO...

Page 5: ...S General 10 Remove the lawn mower from the carton 10 Handle 10 Grass catcher 11 Starter handle 11 Convert the lawn mower 11 Cutting height 12 Filling with oil 12 FUEL HANDLING General 13 Fueling 13 Transport and storage 13 OPERATING Personal protective equipment 14 General safety precautions 14 Basic working techniques 16 Transport and storage 16 Starting and stopping 17 MAINTENANCE General 19 Ma...

Page 6: ...sh that you will be satisfied with your product and that it will be your companion for a long time Think of this operator s manual as a valuable document By following its content using service maintenance etc the life span and the second hand value of the machine can be extended If you ever lend or sell this machine make sure that the borrower or buyer gets the operator s manual so they will also ...

Page 7: ...r gets very hot in use and remains so for a short time afterwards Do not touch the muffler if it is hot WARNING Engine exhaust some of its constituents and certain vehicle components contain or emit chemicals known to the State of California to cause cancer and birth defects or other reproductive harm WARNING Battery posts terminals and related accessories contain lead and lead compounds chemicals...

Page 8: ...er handle 4 Grass catcher 5 Fuel cap 6 Air filter 7 Spark plug 8 Drive cover 9 Muffler 10 Wash out port 11 Rear deflector 12 Engine oil cap with dipstick 13 Cutting height control 14 Mulch plug 15 Operator s manual 16 Discharge chute WHAT IS WHAT 1 2 3 4 5 7 8 10 11 13 14 6 12 9 11 15 16 ...

Page 9: ... brake handle The engine should stop and the drive should disengage Rear deflector The rear deflector attached between the rear wheels of your mower is provided to minimize the possibility that objects will be thrown out of the rear of the mower into the operator s mowing position Inspecting the rear deflector Make sure the rear deflector is not damaged and that there are no visible defects such a...

Page 10: ...a slot in the handle bracket to set a comfortable height position for the handle 2 Tighten the lower handlebar knobs 3 Remove protective padding raise the upper handle section into place on the lower handle and tighten both upper knobs 4 Remove any packing material from around engine brake handle Vertical handle storage The handle can be set in a vertical storage position 1 Loosen the lower handle...

Page 11: ...used in mulching mode The mulching mode will recut the grass clippings many times which will reduce the clippings in size so that as they fall onto the lawn they will disperse into the grass and not be noticed In addition the mulched grass will biodegrade quickly to provide nutrients for the lawn Use rear bagging to collect the grass clippings within the grass catcher WARNING Do not run your lawn ...

Page 12: ... the left of the machine while cutting Cutting height The cutting height can be adjusted to 9 1 9 different positions Raise wheels for low cut and lower wheels for high cut Adjust cutting height to suit your requirements Medium position is best for most lawns To change cutting height squeeze height adjuster lever toward the wheel Move the wheel up or down to suit your requirements Set the same hei...

Page 13: ...n contact with fuel Use soap and water If the machine is leaking fuel Check regularly for leaks from the fuel cap and fuel lines Engine oil CAUTION Check the oil level before starting the lawn mower A too low oil level can cause serious damage to the engine See instructions in the section Maintenance The engine oil should be changed the first time after 5 hours running time Never use oil intended ...

Page 14: ...ator is responsible for accidents or hazards occuring to other people or their property See manufacturer s instructions for proper operation and installation of accessories Only use accessories approved by the manufacturer The machine must be kept clean Signs and stickers must be fully legible Maintain or replace safety and instruction labels as necessary Always disconnect the spark plug before pe...

Page 15: ...es etc should be removed from the lawn before you start to mow Objects hitting against the cutting attachment could be thrown and cause damage to people and objects Keep people and animals well away Never use the machine in bad weather for instance in fog in rain damp or in wet locations strong winds intense cold risk of lightning etc Working in bad weather is tiring and can lead to dangerous cond...

Page 16: ...obstacle Pores in cloth grass catchers can become filled with dirt and dust with use and the catcher will collect less grass To prevent this regularly hose the grass catcher off with water and let dry before using Slope operation Mowing slopes can be dangerous Do not use the lawn mower on slopes steeper than 15 All slopes demand extra care If you feel unsure do not mow it Do Mow across the face of...

Page 17: ... starter cord around your hand Drive Self propelling is controlled by holding the brake handle down to the handle and pulling one or both of the drive levers upwards toward the handle The further toward the handle the drive levers are pulled the faster the unit will travel Forward motion will stop when either the the brake handle or the drive levers are released To stop forward motion without stop...

Page 18: ...ease the engine brake handle Emptying the grass catcher Lift up on grass catcher using the frame handle Remove grass catcher with clippings from under lawn mower handle Empty clippings from bag using both frame handle and bag handle CAUTION Do not drag the bag when emptying it will cause unnecessary wear OPERATING ...

Page 19: ...ine that require maintenance and with which intervals it should take place The intervals are calculated based on average use of the machine and may differ depending on the rate of your personal use Daily Maintenance Before use After each use Every 10 hours Every 25 hours Every 100 hours Before storage Lawn mower Tighten bolts and nuts X X Clean Inspect Grass Catcher X X X Check tires X Check drive...

Page 20: ... finished surfaces wheels free of gasoline oil etc Keep top of engine around starter clear and clean of grass clippings and chaff This will help engine air flow and extend engine life Clean the underside of your lawn mower by scraping to remove build up of grass and trash Do not use a high pressure washer to clean the machine Never flush water directly on the engine Clean the air intake on the sta...

Page 21: ...r Engine Lubrication Use only high quality detergent oil rated with API service classification SG SL Select the oil s SAE viscosity grade according to your expected operating temperature CAUTION Although multi viscosity oils 5W30 10W30 etc improve starting in cold weather these multi viscosity oils will result in increased oil consumption when used above 32 F Check your engine oil level more frequ...

Page 22: ...ve spilled fuel or engine oil on the machine wipe off the spillage and allow remaining fuel to evaporate 7 Slowly pour oil down the oil fill spout stopping evey few ounces to check the oil level with the dipstick Do not overfill 8 Always be sure to retighten oil dipstick before starting engine 9 Reconnect to the spark plug wire Muffler If the muffler is corroded or is damaged in any other way it m...

Page 23: ...ward sharpen the heavy end until the blade is balanced IMPORTANT The blades should be balanced after sharpening We do not recommend sharpening blade Sharpening and balancing the blade should be conducted by an authorized service workshop Damaged blades should be replaced immediately NEVER use a mower with a damaged blade Replacing the blades 1 Always disconnect the spark plug before performing mai...

Page 24: ...g clockwise 5 The bolt should be tightened with a torque of 35 40 ft Ibs 47 54 Nm 6 Verify the spark plug wire is disconnected from the engine WARNING Always disconnect spark plug wire and place wire where it cannot contact spark plug to prevent accidental starting 7 Pull the blade around by hand and make sure it rotates freely IMPORTANT Always exercise care and use your common sense Avoid all sit...

Page 25: ...1 Hardened washer 12 Lock washer 13 Blade bolt 14 Belt cover Remove the drive belt Empty the fuel tank by running the machine until the tank is empty Always disconnect the spark plug before performing maintenance or accessing mocable parts Turn lawn mower on its side Make sure air filter and carburetor is facing upward Remove drive cover 2 3 6 7 4 5 3 9 8 11 12 13 14 1 10 MAINTENANCE ...

Page 26: ...lt on rear transmission pulley Be sure the new belt is inside the tabs of the belt keeper Reinstall rear transmission pulley Route the other end of the new belt through hole in housing to front transmission pulley Route new belt through idler assembly to blade adapter engine pulley Reinstall all 3 idler pulleys Position the blade adapter engine pulley on the engine crank shaft Be sure key in blade...

Page 27: ...e Check the engine s oil level Walking speed too fast Cut at slower walking speed Uneven mowing Worn bent or loose blade Replace the blade if it is bent or damaged Wheel heights uneven Set all wheels at same height Buildup of grass leaves and trash under mower Clean underside of mower housing Excessive vibrations Worn bent or loose blade Replace the blade if it is bent or damaged Bent engine crank...

Page 28: ...1558665 27 2016 11 23 Original instructions ...

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Jonsered L4621, Operator'S Manual

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