Sears 358.79828 User Manual download pdf (Page 23)

....................... USTMENTSSERVICE AND ADJ

i : i i i

ILADE SHARPENING BRUSH TRI-BLADE SHARPENING

(Fig. 37 )

DANGER:

ALWAYS STOP THE _LNGINE BEFORE

SHARPENING A BLADE. THE BLADE

WILL CONTINUE TO SPIN AFTER THE

ENGINE STOPS OR AFTER THE

THROTTLE TRIGGER HAS BEEN RE-

LEASED. MAKE SURE THE BLADE HAS

STOPPED COASTING AND DISCON-

NECT THE SPARK PLUG BEFORE PER-

FORMING WORK ON THE BLADE.

ALWAYS REPLACE A BLADE THAT IS

BENT, WARPED, CRACKED;'_OR. DAM _

AGED IN ANY OTHER_WAY:'_NEVER_AT;

TEMPT TO STRAIGHTEN _ANDRE;_USE A

DAMAGED BLADE. USE ONLY31-1ESPE-

CIFIED REPLACEMENTBLADE.

WEAR PROTECTIVE GLOVES WHEN

HANDLING OR PERFORMING MAINTE-

NANCE ON THE BLADE TO HELP AVOID

INJURY.

TO PREVENT THE BLADE FROM CRACK-

ING OR FLYING APARTAFTER SHARP-

ENING, DO NOT FILE WITHIN 1/4 INCH OF

THE RADII SHOWN

, The 3 point, 10 inch blade is reversible. When the

cutting edge on one side becomes dull,turn the blade

over. When both sides of cuttingedges become dull,

the blade may be resharpened,

• Check blades for flatness periodically. Lay the

blade on a flat surfaceand inspecttheblade for flatnees

before sharpening. Throw away any blade that is not

flat.

File or grind each edge in thesame manner to

maintain a balanced blade. Balance can be checked

by hanging the blade on a nailat three positionsallow-

ing each point to face north. If the blade rotates at any

time it snot balanced therefore fi e the heavier edge.

- If abnormal vibration occurs after blade sharpen- --

• .JOg, stop the unit, remove the blade from the unit and

reChe_dkblade balance,

File orGrind Each

Edge in the Same

Manner to Maintain

a Balanced Blade.

Figure 37

_IELtMt3ER

When the cuttingedge on one side becomes dull, turn

the blade over.

When both sides of cutting edges become dull, sharp-

en with a fiat file.

The line ,miter can be sharpened .while_attached to the ....

plastic line trimmer shield.

Avoid damage to the plastic shieldwhile sharpening the

limiter blade.

SAW BLADE SHARPENING (Fig. 38 )

Check blades for flatness pedodically. Lay the

blade ona fiat surfaceand inspectthe blade forflatness

before sharpening. Throw away any blade that is not

flaL

File or grind each edge in the same manner to

maintain a balanced blade. Balance can be checked

by hanging the blade on a nail at two positions, 90 de-

grees-aparL If the blade rotates at anytime, then it is

not balanced; therefore, file the heavier edge.

If abnormal vibration occurs after blade sharpen-

ing, stop the unit, remove the blade from the unit, and

recheck blade balance.

File or Grind Each

Edge in the Same

Manner to Maintain

a Balanced Blade.

Figure 38

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Sears 358.79828 User Manual Page 23

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