Operation - Husqvarna K 770 Operator's Manual

Introduction
WARNING: Read and understand the safety
chapter before you use the product.
Kickback
WARNING: Kickbacks are sudden and can
be very violent. The power cutter can be
thrown up and back towards the user in a
rotating motion causing serious or even fatal
injury. It is vital to understand what causes
kickback and how to avoid it before using
the product.
Kickback is the sudden upward motion that can occur if
the blade is pinched or stalled in the kickback zone.
Most kickbacks are small and pose little danger.
However a kickback can also be very violent and throw
the power cutter up and back towards the user in a
rotating motion causing serious or even fatal injury.
Reactive force
A reactive force is always present when cutting. The
force pulls the product in the opposite direction to the
blade rotation. Most of the time this force is insignificant.
If the blade is pinched or stalled, the reactive force will
be strong and you might not be able to control the power
cutter.
Never move the product when the cutting equipment is
rotating. Gyroscopic forces can obstruct the intended
movement
Kickback zone
Never use the kickback zone of the blade for cutting. If
the blade is pinched or stalled in the kickback zone, the
reactive force will push the power cutter up and back
18

Operation

towards the user in a rotating motion causing serious or
even fatal injury.
Rotational kickback
A rotational kickback occurs when the cutting blade
does not move freely in the kickback zone.
Climbing kickback
If the kickback zone is used for cutting, the reactive
force drives the blade to climb up in the cut. Do not use
1447 - 001 - 16.04.2020