Tensioning The Saw Chain; Replacing A Worn Saw Chain And Sharpening Stone - Oregon CS300 Original Instruction Manual

MAINTENANCE AND CLEANING

TENSIONING THE SAW CHAIN

IMPORTANT: ONLY TENSION THE SAW
CHAIN WHEN THE CHAIN IS COOL.
A HOT CHAIN MAY CONTRACT AND
DAMAGE THE GUIDE BAR OR CHAIN
AS IT COOLS.
If the chain does not touch the underside
of the bar when the chain saw is off and
cool, it should be tensioned .
Tension the chain as described in
"Tensioning the Saw Chain" in the
"Unpacking and Assembly" section of this
manual .
REPLACING A WORN SAW
CHAIN AND SHARPENING
STONE
CAUTION: REPLACE POWERSHARP®
SAW CHAIN AND THE SHARPENING
STONE AT THE SAME TIME. FAILURE
TO DO SO COULD RESULT IN
DECREASED PERFORMANCE OR
DAMAGE TO THE CHAIN AND/OR
SHARPENING STONE.
CAUTION: THE POWERSHARP®
INTEGRATED SHARPENING SYSTEM IS
FOR USE ONLY WITH POWERSHARP®
CHAIN. REMOVE THE SHARPENING
STONE WHEN USING SAW CHAIN
OTHER THAN POWERSHARP®. FAILURE
TO DO SO MAY RESULT IN DAMAGE
TO THE SAW CHAIN, SHARPENING
SYSTEM AND/OR CHAIN SAW.
When the saw chain becomes cracked
or has broken teeth, is stretched to the
point that it cannot be kept at proper
tension or simply cannot be sharpened, it
must be replaced .
30
OREGON® Cordless Tool System
CHAIN SAW MODEL CS300
Wear gloves .
• Remove the battery .
• Loosen the side cover release knob
slightly, but do not remove the side
cover .
• Loosen the chain tensioning ring (turn it
counterclockwise) as far as it will go .
• Loosen the side cover release knob and
remove the side cover .
• Remove the saw chain .
• Remove the two screws holding the
sharpening stone (Fig . 42) .
FIG. 42
• Remove the stone .
• Make sure the PowerSharp® lever and
surrounding area are free of debris .
• Place the new stone on the lever and
replace the screws .
• Replace the guide bar and saw chain .
See "Assembling the Guide Bar and Saw
Chain" section in this manual .
• Tension the chain as described in
"Tensioning the Saw Chain" in the
"Unpacking and Assembly" section of
this manual .
IMPORTANT: THE SAW CHAIN MUST
BE PROPERLY TENSIONED BEFORE
USING. SEE "TENSIONING THE
SAW CHAIN" IN THE "UNPACKING
AND ASSEMBLY" SECTION OF THIS
MANUAL.
AA 1214 - F/N 573259