Stihl TS 440 Instruction Manual page 27

meet the existing cut without
twisting, jamming or side loading the
wheel.
Rotate the guard to the forward
N
position shown in illustration E.
E
Make a cut from the top half of the
N
pipe down, connecting with the cut
from the lower half. Illustration E.
Again, do not attempt to twist or
bend the machine or wheel to join
the two cuts.
F X
Make a cut in the marked area
N
shown above leaving uncut the
section labeled "X" on the
illustration. To keep the pipe from
pinching, binding or clamping the
wheel during this cut, do not cut into
the area labeled "X", Illustration F.
Only make the final top cut (Separating
Cut) after all bottom and lateral cuts
have been completed and connected
with one another. Illustration G.
TS 440
Always make the final Separating
N
Cut from the top (approx. 15 % of
the pipe circumference) using the
bottom of the wheel with the guard
adjusted to cover the top of the
wheel and to direct cutting debris
and sparks away from the operator.
If the workpiece is properly
supported, it should not pinch, bind
or clamp when the cut is completed.
By using this technique, if there is
any residual pinching, binding or
clamping, it should occur at the
bottom of the wheel where it may
result in pull-away, but not rotational
kickback. Be alert for pull-away.
Always adjust the guard fully
forward to the forward stop position
(covering the top of the wheel down
to a point on the cutting wheel
roughly midway between 9:00 and
12:00 when viewing the wheel from
the fan wheel housing side of the
machine) when a more open guard
position is not needed to make or
complete a cut.
If the pipe can be rolled:
Use only the bottom of the abrasive
N
cutting wheel to make an initial
partial cut with the guard of the
machine pushed fully forward to the
limit stop, covering the top of the
wheel.
Roll the pipe, resecure and support
N
it. Make another partial cut using the
bottom of the wheel and the guard
covering the top of the wheel.
Repeat this process until the cut is
N
complete.
Be alert to bell ends or any other
N
feature of the pipe that could cause
the cut to close on the wheel if the
pipe is not properly supported and
secured. Bell ended pipes, even
when lying on level ground, can
create a ramp effect that may cause
the pipe to sag or drop when cut,
pinching, binding or clamping the
cutting wheel and resulting in
severe kickback or other reactive
force.
Cutting recesses in pipe
The sequence of cuts (in the illustrations
below, 1 to 4) is recommended:
1
2
Always make severing cuts so that
N
the abrasive cutting wheel is not
pinched, bound or clamped.
English
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