B Blade Sharpening - Craftsman 358.798470 Operator's Manual

|1 i iiiii
SERVICE AND ADJUSTMENT
BRUSH
&
BLADE SHARPENING (Fig, 41)
DANGER:
ALWAYS STOP THE ENGINE BEFORE
SHARPENING A BLADE. THE BLADE WILL
CONTINUE TO SPIN AFTER THE ENGINE
STOPS OR AFTER THE THROTTLE TRIGGER
HAS BEEN RELEASED. MAKE SURE THE
BLADE HAS STOPPED COASTINGAND DIS.
CONNECT SPARK PLUG 5EFORE PER-
FORMING WORK ON THE BLADE.
ALWAYS REPLACE A BLADE THAT IS
BENT, WARPED, CRACKED, OR DAMAGED
IN ANY OTHER WAY. NEVER ATTEMPT TO
STRAIGHTEN AND REUSE A DAMAGED
BLADE. USE ONLY THE SPECIFIED
REPLACEMENT BLADE.
WEAR PROTECTIVE GLOVES WHEN HAN-
DLING OR PERFORMING MAINTENANCE
ONTHE BLADE TO HELP AVOID INJURY.
TO PREVENTTHE BLADE FROM CRACKING
OR FLYING APART AFTER SHARPENING,
DO NOT RLE WITHIN I/4 INCH OF THE
RADII SHOWN.
, Check blades for flatness periodically. Laythe blade
on a fiat surface and inspect the blade for flatness
before sharpening. Throw away any blade that is not
flat.
• File or grindeach edge in the same manner to main-
tain a balanced blade.
BRUSH BLADE
FiLE OR GRIND
BLADE AS SHOWN
MAINTA_ RADIUS
IN THIS AREA
SHARPENTHIS
AREA ONLY
MAINTAIN RADIUS
IN THIS AREA
WEED BLADE SHARPENING (Fig. 42)
• The 4 point, 8 inch blade is reversible. When the cut-
ting edge on one side becomes dull,turn the blade over.
When both sides of cutting edges become dull, the
blade may be resharpened,
• Check blades for flatness periodically. Lay the blade
on a flat surface and inspect the blade for flatness
- beforesharpening,throw away any blade that is not Ilat.
• File or grind each edge in the same manner to main-
tain a balanced blade.
WEED BLADE _
FILE OR GRIND EACH
EDGE INTHE SAME
MANNER TO MAINTAIN
A BALANCEDBLADE
O
1/4 INCH
_--T--_l _ MAINTAIN RADIUS
MAINTAIN RADIUS'_"-"__._
AREA ONLY
Figure 42
Figure 41
- 28 -