Husqvarna 87521HVE - Manual (Page 10)

10
OPERATION
CAUTION: Alcohol blended fuels
(called gasohol or using ethanol or
methanol) can attract moisture which
leads to separation and for ma tion of
acids during storage. Acidic gas can
damage the fuel system of an engine
while in storage. To avoid engine
problems, the fuel system should be
emptied before stor age of 30 days or
longer. Empty the gas tank, start the
engine and let it run until the fuel lines
and carburetor are empty. Use fresh fuel
next season. See Storage In struc tions
for additional information. Never use
engine or carburetor cleaner products
in the fuel tank or permanent damage
may occur.
TO STOP ENGINE
• To stop engine, release operator presence con trol bar.
TO START ENGINE
NOTE: Due to protective coatings on the engine, a small
amount of smoke may be present during the initial use of
the product and should be considered normal.
1. To start a cold engine, push primer three (3) times
before trying to start. Use a fi rm push. This step is not
usually necessary when starting an engine which has
already run for a few minutes.
2. Hold operator presence control bar down to the han dle
and turn the start key.
IMPORTANT: DO NOT CRANK ENGINE MORE THAN FIVE
CONTINOUS SECONDS BETWEEN EACH TIME YOU TRY TO
START. WAIT 5 TO 10 SECONDS BETWEEN EACH ATTEMPT.
• To start engine using the rope start er, follow the steps
above. Exchange the use of the starter rope for start
key. Pull starter handle quickly. Do not allow starter
rope to snap back.
NOTE: In cooler weather it may be necessary to repeat
priming steps. In warmer weather over priming may cause
fl ooding and engine will not start. If you do fl ood engine,
wait a few minutes before attempting to start and do not
repeat priming steps.
MOWING TIPS
CAUTION: Do not use de-thatcher
blade attachments on your mower.
Such attachments are hazardous, will
damage your mower and could void
your warranty.
• 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.
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. 13). 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.
• 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 east to west the next
week. This will help prevent matting and graining of
the lawn.
FIG. 13
MAX 1/3