Husqvarna 55B21HV owner manual Mulching Mowing Tips

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OPERATION

OFF

ON

FUEL

VALVE

LEVER

FIG. 16

MULCHING MOWING TIPS

IMPORTANT: FOR BEST PERFORMANCE, KEEP MOWER HOUSING FREE OF BUILT-UP GRASS AND TRASH. SEE “CLEANING” IN THE MAINTENANCE SECTION OF THIS MANUAL.

The special mulching blade will recut the grass clip- pings many times and reduce them in size so that as they fall onto the lawn they will disperse into the grass and not be noticed. Also, the mulched grass will biode- grade quickly to provide nutrients for the lawn. Always mulch with your highest engine (blade) speed as this will provide the best recutting action of the blades.

Avoid cutting your lawn when it is wet. Wet grass tends to form clumps and interferes with the mulching action. The best time to mow your lawn is the early afternoon. At this time the grass has dried, yet the newly cut area will not be exposed to direct sunlight.

For best results, adjust the lawn mower cutting height so that the lawn mower cuts off only the top one-third of the grass blades (See Fig. 17). If the lawn is over- grown it will be necessary to raise the height of cut to reduce pushing effort and to keep from overloading the engine and leaving clumps of mulched grass. For extremely heavy mulching, reduce your width of cut by overlapping previously cut path and mow slowly.

MOWING TIPS

Under certain conditions, such as very tall grass, it may be necessary to raise the height of cut to reduce pushing effort and to keep from overloading the engine and leaving clumps of grass clippings. It may also be necessary to reduce ground speed and/or run the lawn mower over the area a second time.

For extremely heavy cutting, reduce the width of cut by overlapping previously cut path and mow slowly.

For better grass bagging and most cutting conditions, the engine speed should be set in the fast position.

Pores in cloth grass catchers can become fi lled with dirt and dust with use and catchers will collect less grass. To prevent this, regularly hose catcher off with water and let dry before using.

Keep top of engine around starter clear and clean of grass clippings and chaff. This will help engine air fl ow and extend engine life.

MAX 1/3

FIG. 17

Certain types of grass and grass conditions may require that an area be mulched a second time to completely hide the clippings. When doing a second cut, mow across (perpendicular) to the fi rst cut path.

Change your cutting pattern from week to week. Mow north to south one week then change to east to west the next week. This will help prevent matting and graining of the lawn.

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Contents 55B21HV III. Children IV. ServiceSafe Operation Practices for Walk-Behind Mowers General OperationTable of Contents To Unfold Handle See Figs AssemblyHOW to SET UP Your Lawn Mower To Remove Lawn Mower from CartonTo Assemble Grass Catcher See Figs To Install AttachmentsKnow Your Lawn Mower Meets Cpsc Safety RequirementsOperation Blade Control See Fig HOW to USE Your Lawn MowerDrive Control Adjustment See Fig Throttle / Engine Control See FigTo Convert Mower See Figs thru To Adjust Cutting Height See FigTo Empty Grass Catcher See Figs Simple Steps to Remember When Converting Your Lawn MowerTo Stop Engine Before Starting EngineADD OIL See Figs ADD Gasoline See FigMulching Mowing Tips Mowing TipsBefore Each USE MaintenanceLubrication Chart General RecommendationsEngine Lawn MowerCleaning Service and AdjustmentsTo Replace Drive Belt See Figs To Remove Drive Belt See FigsCarburetor To Adjust Handle See FigStorage Engine SpeedEngine OIL OtherHandle See Figs Fuel SystemProblem Cause Correction Troubleshooting PointsKEY Part Description Gear Case Assembly - Part Number 532 18Rotary Lawn Mower - Model Number 55B21HV 55B21HVA Page KEY Part Description Page 532 19 Statementwarranty