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Service; Engine; Spark Plug; Air Filter - Craftsman 14.3 Owner's Manual

Sears lawn mower user manual
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Table of Contents
CU
E
RESPONSIBILITIES
TO CHANGE AIR FILTER (See Fig. 9)
ENGINE
LUBRICATION
Use only high quality detergent oil rated with API service
classification
SF, SG or SH. Select the oil's SAE viscosity
grade according to your expected operating temperature.
SAE VISCOSITY
GRADES
T
.3o o
-20°
-loo
D"
_o"
2o °
3o _
40 °
TEMPERATURE
RANGE ANTICIPATED
BEFORE
NEXT OIL CHANGE
NOTE:
Although multi-viscosity otis (5W30, 10W30 etc.)
improve starting in cold weather, these multi-viscosity oils
wil! result in increased oil consumption when used above
32°F. Check your engine oii level more frequently to avoid
possible engine damage from running low on oil.
Change the oil after every 25 hours of operation orat 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 oit level.
TO CHANGE ENGINE OiL (See Fig. 8)
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.
Be sure lawn mower is on level surface.
=
Oil will drain more freety when warm.
Catch oil in a suitable container.
Remove bottom oil drain plug.
=
After oil has drained completely,
replace oil drain plug
and tighten securely.
=
Refill engine with oil. Pour slowly. Do not over fill.
Fill to top of slot inside of filler hole.
Reconnect spark plug wire to spark plug.
\
CONTAINER
FIG. 8
AIR
FILTER
Your engine will not run properly and may be damaged by
using a dirty air filter.
Replace the air filter every year, more often if you mow in
very dusty, dirty conditions.
Do not wash air filter.
1i
,
Remove the air filter by turning counterclockwise
to the
stop and pull away from collar.
o
Remove filter from inside of cover.
Clean the inside of the cover and the collar to remove
any dirt accumulation.
Insert new filter into cover,
Put air filter cover and filter into collar aligning the tab
with the slot.
Push in on cover and turn clockwise to tighten.
COLLAR
SLOT
COUNTER-
CLOCKWISE
TO REMOVE
AiR FILTER
_'URN CLOCKWISE
AIR FILTER COVER
TO TIGHTEN
FIG. 9
MUFFLER
Inspect and replace corroded muffler as it could create a
fire hazard and/or damage.
SPARK
PLUG
Change your spark plug each year to make your engine
start easier and run better. Set spark plug gap at .030 inch.
CLEANING
IMPORTANT:
FOR BEST
PERFORMANCE,
KEEP
MOWER HOUSING FREE OF BUILT-UP
GRASS AND
TRASH.
CLEAN THE UNDERSIDE OF YOUR MOWER
AFTER EACH USE.
CAUTION:
Disconnect spark plug wire
from spark plug and place wire where it
cannot come in contact with the spark
plug.
o
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 build-up 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,
oit,etc.
We do not recommend using a garden hose to clean
lawn mower unless the electrical system, muffler, air
filter and carburetor are covered to keep water out.
Water in engine can result in shortened engine life.
CLEAN
UNDER DRIVE COVER
Clean under drive cover at least twice a season.
Scrape
underside of cover with putty knife or similar tool to remove
any buitd-up of trash or grass on underside of drive cover.

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