briggs--stratton 5900302 用户手册

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页码 56
21
Operation
When and How Often to Mow
The time of day and condition of the grass greatly 
affect the results you’ll get when mowing. For the best 
results, follow these guidelines:
 1.  Mow when the grass is between three and five 
inches high.
 2.  Mow with sharp blades. Short clippings of grass 
one inch or shorter decompose more quickly than 
longer blades. Sharp mower blades cut grass 
cleanly and efficiently, preventing frayed edges 
which harm the grass.
 3.  Mow at time of day when the grass is cool and 
dry. Late afternoon or early evening often provide 
these ideal mowing conditions.
 4.  Avoid mowing after rain or even heavy dew, and 
never mulch when the grass is wet (moist grass 
does not mulch well, and clumps beneath the 
mower deck).
Mowing Patterns
Always start mowing on a smooth, level area.
The size and type of area to be mowed will determine 
the best mowing pattern to use. Obstructions such as 
trees, fences and buildings, and conditions such as 
slopes and grades must also be considered. 
 1.  Cut long straight strips overlapping slightly.
 2.  Where possible, change patterns occasionally 
to eliminate matting, graining or a corrugated 
appearance.
 3.  For a truly professional cut, mow across the lawn 
in one direction, then recut the lawn by mowing 
perpendicular to the previous cut.
Note: Always operate the engine at full throttle 
when mowing. 
If you hear the engine slowing down, you are mowing 
too fast—using a slower ground speed will improve 
the cutting efficiency of the blades and prevents many 
common cutting problems. Use an appropriate ground 
speed for the thickness and height of the grass 
you are cutting (3rd gear or slower for manual gear 
models). If you hear the engine slowing down you are 
mowing too fast, use a slower ground speed. 
Mowing Methods
Proper Broadcast Mowing
Broadcasting, or side-discharging, disperses fine 
clippings evenly over the entire lawn.  Many golf 
courses use this method. Your mower has a deep 
dish deck to allow freer circulation of clippings so they 
are broadcast evenly over the lawn.
ENGINE SPEED & GROUND SPEED FOR 
BROADCASTING
Always operate the engine at full throttle when 
mowing.  If you hear the engine slowing down, you 
are mowing too fast—using a slower ground speed 
will improve the cutting efficiency of the blades and 
prevents many common cutting problems. 
ALWAYS use an appropriate ground speed for the 
thickness and height of the grass you are cutting (3rd 
gear or slower for manual gear models). If you hear 
the engine slowing down you are mowing too fast, 
use a slower ground speed.
HOW MUCH GRASS TO CUT OFF WHEN 
BROADCASTING
Mow when the grass is 3-5 inches long.  Do not cut 
the grass shorter than 2 to 2-1/2 inches.  Do not cut 
off more that 1 inch of grass in a single pass
Where possible, make one or two passes around the 
outside of the area discharging the grass INTO the 
lawn to keep the cut grass off fences and walks.
The remainder of the mowing should be done in the 
opposite direction so that the clippings are dispersed 
OUT onto the area of lawn previously cut.
Not 
for  
Reproduction