Craftsman 358.79821 manual Replacing the Line, Carburetor Adjustment, Presets

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REPLACING THE LINE

Push and hold the engine stop switch in the stop/off position until the unit has fully stopped.

Disconnect the spark plug lead wire.

Remove the spool by firmly pulling on the tap button.

Clean entire surface of hub and spool.

Replace with a pre-wound spool, or cut two 12.5 foot (3.8 m) lengths of

.080" (2 mm) diameter Craftsman brand line. Never use wire, rope, string, etc., which can break off and become a dangerous missile.

Insert ends of line about 1/2 inch (1 cm) into the small holes inside spool.

Spool

/_

Small

 

.............-//

Holes

Wind the line evenly and tightly onto the spool. Wind in the direction of the arrows found on the spool.

Push the line into the notches, leaving 3 to 5 inches (7 - 12 cm) unwound.

Insert the line into the the exit holes in the hub as shown in the illustration.

Line

exit holes

Line in Notch

\

 

 

\\\\

/

 

 

\'i

 

 

"I

 

Hub J

Line in Notch

Align notches with the line exit hole.

Push the spool into the hub until it snaps into place.

Pull the line extending outside of the hub to release it from the notch.

CARBURETOR ADJUSTMENT

WARNING:The trimmer head will be spinning during most of this procedure. Wear your protective equipment and observe all safety precautions. After making mixture adjustments, recheck idle speed.

Carburetor adjustment is critical and if done improperly can permanently

damage the engine as well as the car- buretor. If you require further assis- tance or are unsure about performing this procedure, call our customer as- sistance help line at 1-800-235-5878. Old fuel, a dirty air filter, a dirty fuel fil- ter, or flooding may give the impres- sion of an improperly adjusted carbu- retor. Check these conditions before adjusting the carburetor.

The carburetor has been carefully set at the factory. Adjustments may be necessary if you notice any of the fol- lowing conditions:

Engine will not idle. See "Idle Speed" under adjusting procedure.

Engine dies or hesitates instead of accelerating. See "Acceleration Check" under adjusting procedure.

Loss of cutting power. See "Mixture Adjustment" under adjusting procedure.

There are two adjustment screws on the carburetor.

 

Screw

Mixture Screw.

Air Filter

(with Limiter

"_ Cover

Cap)

CARBURETOR

PRESETS

When making carburetor preset adjust- ments, do not force plastic limiter caps beyond stops or damage will occur.

If carburetor presets are not needed, proceed to "Adjusting Procedure, Idle Speed."

To adjust presets:

Turn mixture screw counterclockwise until it stops.

Turn the idle speed screw clockwise

until it stops. Now turn counterclock- wise 4-1/2 turns.

Start motor, cut grass for 3 minutes, and proceed to the adjustment section. If engine does not start, refer to troubleshooting chart or call 1-800-235-5878.

If engine performance is acceptable at the preset positions, no further adjustment is necessary.

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Contents Crfiftsmfin Model NoThis power unit can be dangerous I. Op Sears, Roebuck and Co., D/817 WA Hoffman Estates, ILOperatorsafety Cartoncontents Checkcartoncontentsagainstthefol- lowinglist TorscreenIfyouoperateinalocalePrimer Bulb Fueling EngineTheSTOPposition Levertofullposition Engine ChokeLever Stop SwitchStoppingyourengine Starting a Warm EngineCutting Methods Trimmer Line AdvanceRight Wrong = Duringlightdutycutting TreesorfencewireFormowingorsweepingusefull Throttleforagoodcleanjob Mowing CanwrapsuchassmallpostsGeneral Recommendations Clean AIR FilterReplace Spark Plug Replacing the Line Carburetor AdjustmentPresets CarburetorFuel System Adjusting ProcedureExternal Surfaces Internal EngineYour Warranty TroubleshootingchartManufacturers Nance.Asthelawnandgarden Madeorapprovedbytheoriginal