Engine, Lubrication, Air filter – Craftsman 917.37459 User Manual

Page 14: Muffler, Spark plug, Cleaning, Clean under drive cover, Lubrication spark plug, Customer responsibilities

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CUSTOMER RESPONSIBILITIES

ENGINE
LUBRICATION

Use only high quality detergent oil rated with API service

classification SF or SG. Select the oil's S AE viscosity grade

according to your expected operating temperature.

SAE VISCOSITY GRADES

30“ 32" 40“ 60“ ' 60“ 100"

0“

“C .30“ '

20“ -10" Q“' 10“ 20" 30'= 40"

TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE

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 oii into a suitable

container. Rock lawn mower back and forth to remove
any oii 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,

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 it you mow in

very dusty, dirty conditions. Do not wash air filter.

TO CHANGE AIR FILTER (See Fig. 13)
® Remove the airfilter by turning counterclockwise to the

stop and pull away from collar.

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.

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 easierand 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 UNDERSIDE OF MOWER HOUSING
AFTER EACH USE.

CAUTION; Disconnect

spark

plug

wire

from spark plug

and

place

wire

where it

cannot come in contact with the spark

plug.

* 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,

oil, etc.

® We DC NCT 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 coverwith putty knife orsimilartool to remove
any build-up of trash or grass on underside of drive cover.

14

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