Operator’s
Manual
Pentruder
CW630
HF
Chain
Saw
–
Original
instructions
Page
16
Cutting
tips
5.2
Warning!
-
Do
not
run
the
saw
upside
‐
down.
Concrete
debris
can
fly
back
into
the
operator’s
face.
-
Always
operate
tool
with
solid
footing
and
with
both
hands
firmly
gripping
the
handles.
!
Important!
-
To
avoid
overheating,
the
HF
‐
motor
will
be
switched
off
automatically
if
the
motor
winding
temperature
is
over
140°C
(284°F).
The
coolant
water
should
then
be
left
running
through
the
HF
‐
power
pack
and
HF
‐
chain
saw
to
avoid
terminal
overheating.
-
If
the
water
is
turned
off
immediately
after
the
HF
‐
motor
has
been
switched
off
automatically,
for
instance
due
to
overload
and
the
warning
light
is
on,
terminal
damage
to
the
motor
windings
may
occur.
-
Rebar
must
be
encased
in
concrete.
Never
cut
bare
rebar
with
a
Diamond
Chain.
Note!
-
If
one
of
the
emergency
stop
buttons
is pressed
or
the
unit
has
been
unplugged
from
the
power
supply,
both
the
blade
speed
and
the
feed
and
travel
potentiometers
must
be
returned
to
zero
before
the
machine
is
operational
again.
-
The
single
most
important
factor
an
operator
can
control
to
increase
chain
life
is
to
use
adequate
water
pressure
and
flow.
To
start
a
cut,
hold
trigger
and
slowly
plunge
the
nose
of
the
guide
bar
straight
into
the
wall.
Use
the
fixed
WallWalker®
as
a
pivot
point
and
pull
up
on
the
rear
handle
to
rotate
the
guide
bar
into
the
cut.
Always
operate
the
saw
at
full
speed.
If
too
much
force
is
applied,
the
saw
will
lug
or
stall.
The
chain
will
not
have
enough
speed
to
cut
effectively.
If
too
little
feed
force
is
applied,
the
diamonds
will
skid
and
glaze
over.
For
straighter
cuts
use
the
“Step
Cut”
method.
First
score
the
entire
cut
line
with
the
nose
of
the
guide
bar
approximately
12
mm
(1/2
in)
to
25
mm
(1
in)
deep.
Next,
deepen
the
cut
by
about
50
mm
(2
in).
This
groove
will
help
guide
the
guide
bar
for
a
straight
cut.
Then
plunge
all
the
way
through
and
complete
the
cut
using
the
WallWalker®.
Use
the
WallWalker®
to
help
cut
more
efficiently
and
reduce
operator
fatigue.
The
WallWalker®
is
a
fulcrum
that
converts
inward
force
to
downward
force
and
will
develop
a
4
‐
to
‐
1
mechanical
advantage.
To
use
correctly,
plunge
into
the
wall
and
simply
engage
the
point
of
the
WallWalker®
into
the
cut
and
push
straight
in.
The
WallWalker®
will
force
the
saw
to
feed
down.