Craftsman 917.379480 owner manual Engine

Models: 37948 917.379480

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ENGINE

To check blade balance, drive a nail into a beam or wall. Leave about one inch of the straight nail exposed. Place center hole of blade over the head of the nail. If blade is balanced, it should remain in a horizontal position. If either end of the blade moves downward,

sharpen the heavy end until the blade is balanced.

LockwasherSpacer

Blade Sic

The gear case is filled with lubricant to

the proper level at the factory. The only time the lubricant needs attention is if

service has been performed on the gear case.

If lubricant is required, use only Texaco Starplex Premium 1 Grease, Part No. 750369. Do not substitute.

ENGINE

LUBRICATION

Use only high quality detergent oil rated with API service classif_tion SI-, SG or SH.

Select the oil'sSAE v'_,osily grade according to your expected operating temperature.

Blade washer

boltTrailing/edgeadapter

GRASS CATCHER

The grass catcher may be hosed with water, but must be dry when used.

"Check your grass catcher often for

damage or deterioration. Through normal use it will wear. If catcher

needs replacing, replace only with a

manufacturer approved replacement catcher. Give the lawn mower model

number when ordering.

DRIVE WHEELS

Check front drive wheels each time before you mow to be sure they move freely.

The wheels not turning freely means

trash, grass cuttings, etc. are in the drive wheel area and must be cleaned to free

drive wheels.

If necessary to clean the drive wheels, check both front wheels.

,,Remove hubcaps, hairpin cotters and washers.

Remove wheels from wheel adjusters.

Remove any trash or grass cuttings from inside the dust cover, pinion and/ or drive wheel gear teeth.

Put wheels back in place.

If after cleaning, the drive wheels do

not turn freely, contact your nearest

.authorized service center.

GEAR CASE

To keep your drive system working properly, the gear case and area around the drive should be kept clean and free of trash build-up. Clean under the drive cover twice a season.

SAE VISCOSITY GRADES

O.

._

.10.

O*

I0.

20"

3_,

TEMPERATURE RANGE ANTICtPAT_D BEFORE NEXT OIL CHANGE

NOTE: Although multi-viscosity oils (5W30, 10W30 etc.) improve starting in cold weather, these multi-viscosityoils will result in increased oil consumption when used above 32°F. Check your engine oil level more frequen T to avoid possible engine damage from running low on oil.

Change the oil after every 25 hours of operation 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

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 as shown 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 to the upper limit mark on the dipstick. DO NOT OVER FILL.

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Craftsman 917.379480 owner manual Engine