Craftsman 917.376521 Owner's Manual page 10

Rotary lawn mower 6.5 horsepower power-propelled 21" rear discharge
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• Under certain conditions,such as very
tall grass, it may be necessaryto raise
the height of cut to reduce pushing
effort and to keepfrom overloadingthe
engineand leavingclumpsof grass clip-
pings. It mayalso be necessaryto re-
duce groundspeed and/or run the lawn
mowerover the area a second time.
• For extremelyheavycutting, reducethe
widthof cut by overlappingpreviously
cut path and mow slowly.
• For better grass bagging and most cut-
ting conditions,the enginespeed should
be set in the FASTposition.
• When using a rear dischargelawn
mower in moist, heavygrass, clumps
of cut grass may not enter the grass
catcher.Reducegroundspeed (pushing
speed) and/or run the lawn mowerover
the area a second time.
• If a trail of clippings is left on the right
side of a rear dischargemower,mow in
a clockwisedirectionwith a small over-
lap to collectthe clippingson the next
pass.
• Poresin cloth grass catcherscan be-
come filled with dirt anddust with use
and catcherswill collect less grass.To
preventthis, regularlyhosecatcher off
with water and let dry beforeusing.
• Keeptop of engine aroundstarter clear
and clean of grass clippings and chaff.
This will help engine air flow and extend
engine life.
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 clippings
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 biodegrade
quickly
to provide
nutrients
for the lawn.
Always
mulch with your highest
engine
(blade)
speed
as this will provide
the best recut-
ting 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.
If the lawn is overgrown
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 grass,
reduce
your width of cut
by overlapping
previously
cut path and
mow slowly.
MAX 1/3
• 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 sec-
ond cut, mow across
(perpendicular)
to
the first 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.
10

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