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13
CS-1201
CAUTION
Do not touch hot surfaces of cylinder cover and
silencer after you used the chain saw.
TENSION AND COMPRESSION IN TIMBER
A length of timber lying on the ground will be subject to
tension and compression, depending at which points the
major support is.
When timber is supported at its ends the compression
side is at the top and the tension side is at the bottom.
To cut between these support points, make the first cut
downwards approximately 1/3rd the timber diameter.
The second cut is made upwards and should meet the
first cut.
When the timber is supported at one end only, make the
first cut upwards approximately 1/3rd the timber
diameter. The second cut is made downwards and
should meet the first cut.
CAUTION
If you have misjudged the effects of tension and
compression, and cut from the wrong side, the
timber will pinch the guide bar and chain, trapping it.
Racing the engine with the chain jammed will burn
out your clutch.
If the chain should become jammed and the saw
can not be removed from the cut do not force it out.
Stop the saw, force a wedge into the cut to open it
up.
Never force the saw when it is jammed.
Do not force the saw into the cut.
A dull chain is unsafe and will cause excessive
wear to the cutting attachments.
A good way to tell when the chain is dull is when
fine saw dust comes out instead of chips.
WARNING DANGER
NEVER USE THROTTLE LATCH FOR CUTTING
JOBS.
Underbuck
UP
Make angled cut when one section may settle against
the other
“Hinge”
“Hinge”
“Hinge”
Opened
Closed
Weakening cut to finish
Heavy stress
1/3 Dia. To avoid sprit
Unsupported end
Overbuck
Wedge
DOWNs