Husqvarna 51 Lawn Mower User Manual


 
11
CUSTOMER RESPONSIBILITIES
ENGINE
Read the maintenance section of your engine manual.
LUBRICATION
Use only high quality detergent oil rated with API service
classification SF or SG. Select the oil's SAE viscosity grade
according to your expected operating temperature.
NOTE: Although multi-viscosity oils (5W30, 10W30 etc.)
improve starting in cold weather, these multi-viscosity oils
will result in increased oil consumption when used above
32°F. Check your engine oil level more frequently to avoid
possible engine damage from running low on oil.
Change the oil after the first two hours of operation and
every 25 hours thereafter or at least once a year if the lawn
mower is not used for 25 hours in one year.
Check the crankcase oil level before starting the engine
and after each five (5) hours of continuous use. Tighten oil
plug securely each time you check the oil level.
TO CHANGE ENGINE OIL (See Fig. 12)
NOTE: Before tipping lawn mower to drain oil, drain fuel
tank by running engine until fuel tank is empty.
Disconnect spark plug wire from spark plug and place
wire where it cannot come in contact with spark plug.
Remove engine oil cap; lay aside on a clean surface.
Tip lawn mower on its side and drain oil into a suitable
container. Rock lawn mower back and forth to remove
any oil trapped inside of engine.
Wipe off any spilled oil on lawn mower and on side of
engine.
Fill engine with oil. Fill only to the “FULL” line on the
dipstick. DO NOT OVER FILL.
Replace engine oil cap.
Reconnect spark plug wire to spark plug.
FIG. 12
AIR FILTER
Your engine will not run properly and may be damaged by
using a dirty air filter. Clean the element after every 25
hours of operation, more often if lawn mower is used in very
dusty, dirty conditions.
See the maintenance section of your engine manual.
SPARK PLUG
Change the spark plug once a year to make the engine run
better and easier to start. Set spark plug gap at .030".
See the maintenance section of your engine manual.
MUFFLER
Inspect and replace corroded muffler as it could create a
fire hazard and/or damage.
CLEANING
IMPORTANT: FOR BEST PERFORMANCE, KEEP
MOWER HOUSING FREE OF GRASS BUILD-UP AND
TRASH. CLEAN THE UNDERSIDE OF YOUR MOWER
AFTER EACH USE.
Clean the underside of your mower after each use.
Turn lawn mower on its side. Make sure air filter and
carburetor are up. Clean the underside of your lawn
mower by scraping to remove buildup of grass and
trash.
Clean engine often to keep trash from accumulating. A
clogged engine runs hotter and shortens engine life.
Keep finished surfaces and wheels free of all gasoline,
oil, etc.
We do not recommend using a garden hose to clean your
lawn mower unless the electrical system, muffler, air filter,
and carburetor are covered to keep water out. Water in
engine can shorten engine life.
TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE
SAE VISCOSITY GRADES
-20° 0° 30° 40°
80°
100°
-30°
-20° 0°
20° 30° 40°
°
F
°
C
32°
-10°
10°
60°
5W-30
SAE 30
CONTAINER
GRASS CATCHER
Grass catcher may be hosed with water but must be dry
when used.
CAUTION: Under normal usage, the
catcher material is subject to deteriora-
tion and wear and should therefore be
checked to ensure compliance with
original manufacturer specifications.