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© 2017 ICS®, Blount International Inc. REV072517 P/N 566594
890F4 OPERATOR MANUAL
11
Names & Terms
ICS890 NAMES AND TERMS
Powerhead
A power cutter without the chain or guidebar.
Pushback
The rapid backward motion of the guidebar, occurring when the chain on
the top straight portion of the guidebar contacts a foreign object or
snags in the workpiece.
Rear handle
The support handle located at or toward the rear of the power cutter
intended to be gripped by the right hand.
Rear hand guard:
A structural barrier at the bottom of the rear handle to protect the operator in
case the chain breaks or derails. Does not meet ISO 14982 Requirements.
Side cover:
The component on the powerhead that covers the drive sprocket and directs
debris away from the operator during use.
Side cover nuts:
The components on the side cover that secure the side cover, bar
retaining plate and guidebar.
Trigger lock-out
A device that prevents the unintentional operation of the throttle trigger until
manually released.
Trigger
A mechanism that controls motor operation.
WallWalker®
A device used as a fulcrum to provide mechanical advantage during
cutting.
Water shut-off valve
A mechanism that controls water delivery and flow to the guidebar and chain.