Echo CS-4910 Operator's Manual page 36

OPERATION
Sap from palm trees may corrode metal parts unless proper saw
maintenance is performed. Make sure to clean metal parts from palm
sap immediately after use.
Do not run a chainsaw not under cutting load at wide open
◆
throttle longer than 5 seconds or engine damage can
occur.
Keep chain properly tensioned during operation to prevent
◆
the chain from jumping out of the guide bar rail slot and
damaging metal engine parts.
Felling The Tree
A falling tree can seriously damage anything it may hit - a car, a
house, a fence, a power line, or another tree. There are ways to
make a tree fall where you want it, so first decide where that is!
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