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Operating Tips
• Clear the area of sticks, stones, wire, branches, and other debris that the Blade could hit.
• Avoid striking solid objects with the Blade. Never deliberately mow over any object.
• If the Mower strikes an object or starts to vibrate, immediately stop the Motor, remove the Safety Key, and examine the Mower
for damage.
• For best performance, install a new Blade before the cutting season begins.
• Replace the Blade when necessary with a DR Power Equipment replacement Blade.
Cutting Grass
• Do not cut more than a third of the grass blade at a time.
• When cutting grass over 6 inches (15 cm) tall, mow at the highest cutting height setting and walk slower; then mow again at a
lower setting for the best lawn appearance. If the grass is too long, the mower may plug and cause the Motor to stop.
• Mow only dry grass or leaves. Wet grass and leaves tend to clump on the yard and can cause the mower to plug or the Motor to
stop.
• Alternate the mowing direction. This helps disperse the clippings over the lawn for even fertilization.
• If the finished lawn appearance is unsatisfactory, try one or more of the following:
o Replace the blade or have it sharpened.
o Walk at a slower pace while mowing.
o Raise the cutting height on your mower.
o Cut the grass more frequently.
o Overlap cutting swaths instead of
cutting a full swath with each pass.
Slope Operation
Vertical Storage
The Mower Handlebar can be folded down in a compact position so the machine can be stored vertically. The mower will take up
less space stored in this manner. Remove the Battery before storing the Mower. Refer to “Chapter 2: Setting Up the DR PRO-21
Battery Lawn Mower” for information on operating the Handlebar Folding Handles.
Wet grass or leaves can cause serious injury if you slip an
d contact the Blade. Mow only in dry conditions.
Slopes are a major factor related to slip and fall accidents, which can result in severe injury. Operation on all slopes requ
ires extra
uneasy on a slope, do not mow it.
Mow across the face of slopes; never up and down. Exercise extreme caution when changing direction on slopes.
Watch for holes, ruts, bumps, rocks, or other hidden objects. Uneven terrain could cause a slip and fall accident. Tall grass
can hide obstacles.
Do not mow on wet grass or excessively steep slopes. Poor footing could cause a slip and fall accident.
Do not mow near drop-offs, ditches, or embankments. You could lose your footing or balance.
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