598994-00,37051 8/9/05 10:17 AM Page 10

From time to time turn off mower and wait for the blade to come to a complete stop. Then unplug the power cord and turn mower on its side. Using an object such as a stick, wipe out any accumulation of grass in the blade area. Be careful of the sharp edges of the blade.

If a grasscatcher is used during the fast growing season, the grass may tend to clog up at the discharge opening. Turn the mower “OFF” and disconnect the power cord plug. Remove the catcher and shake the grass down to the back end of the bag. Also clean out any grass or debris which may be packed around the discharge opening. Replace the grass catcher. Clean often in wet, spring grass.

If mower should start to vibrate abnormally, turn mower “OFF” and unplug power cord. Check immediately for cause. Vibration is a warning of trouble. Do not operate mower until a service check has been made.

ALWAYS turn the mower “OFF” and unplug the mower when leaving it unattended even for a short period of time.

MULCHING

Your new mower is designed to re-cut the grass clippings many times and reduce them in size so that, as they fall into the lawn, they will disperse into the grass and not be noticed. Also, the mulched grass will biodegrade quickly to provide nutrients to the lawn.

Your mower was shipped with the Mulch Insert installed.

MULCHING MOWING TIPS

For best performance, keep the mower housing free of built-up grass and trash. Clean after each use. See CLEANING in the maintenance section of this manual.

Avoid cutting the lawn when it is wet. Wet grass tends to form clumps which interfere with the mulching action. The best time to mow your lawn is in the early afternoon. At this time the grass is dried and the newly cut area will not be exposed to the direct sun. For best results, adjust the mower cutting height so that the mower cuts off only the top one third of the grass blades. If the lawn

is overgrown it will be necessary to increase the cutting height to reduce the pushing effect and reduce overloading the motor. For extremely heavy mulching make narrower cuts and mow slowly.

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 or perpendicular to the first cut path. DO NOT mow perpendicular to the first path if it would require you to mow across a hill.

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

TO REMOVE MULCH INSERT

Shut the mower off, wait until the blade stops and unplug the mower.

Raise the rear door and hold it up.

Locate your hand in the handle pocket of the mulch insert, lift and pull out the mulch insert completely.

The rear discharge door is spring loaded. When you release it the door will return to the closed position.

TO INSTALL MULCH INSERT

Shut the mower off.

Raise the rear door and slide the mulch insert into the discharge opening until it is firmly in contact with the deck.

Release the rear door.

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DeWalt 900.37051 instruction manual Mulching Mowing Tips, To Remove Mulch Insert, To Install Mulch Insert