Forsettingsawchains,round file (4.0 mm _: 5/32") and flat file are used.
• To keep correct position and correct angle, use the file holder (Sure Sharp).
-- Round file (P-No. 897 510-0393 0) and flat file (P-No. 897 511-0023 0) are optional.
-- Please inquire about the file holder, if desired.
angle
PUSH FILE AS SHOWN
Type: 91 SG
HOLD FILE HOLDER LEVEL
1/5
ONE FIFTH OF FILE DIAMETER
REMAINS ABOVE CUTTER EDGE.
• Place the depth gauge tool firmly on guide bar so that depth gauge protrudes. Then file top of depth gauge with flat
the file until flat with top of the depth gauge tool.
-- Be sure to round off the front edge of the depth gauge.
Depth gauge tool
Remove until
flat with tool
_f Round off
J the edge
l These instructions are for the Oregon 91SG saw I
chain.
I
• Properly filed cutters are shown below.
(Top plate angle) (Side plate angle) (Top plate cutting angle) (Depth gauge)
I
85=
©
€
60 °
©
[NOTE]
To sharpen other types of saw chain, follow chain manufacturer's instruction.
-17--
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