Technical data

Select the feeding speed as per the material and the
thickness of the wall. Too high speed can damage
the blade, overload the pipe saw and give a poor
sawing result.
When the pipe is cut off, push the UNLOCK button
forward until the yellow mark is visible and the locking
is released (Fig L/1). Now raise the motor unit to
starting position (Fig L/2). Release the power switch
(Fig L/3). When the blade is stationary, remove the
pipe saw from the pipe by loosening the gripped
handle (Fig L/4). Ensure that the moving lower blade-
guard is lowered into safety position.
Should there be problems during piercing or sawing,
abnormal sounds or vibrations due to which you have
to interrupt sawing before the pipe is cut through,
release the blade by pushing the UNLOCK button
forward until the UNLOCK button is released, and lift
the motor unit up. Once the problem is cleared, start
sawing again.
Never start the motor, when the motor unit is locked
in sawing position or teeth of the blade contact the
pipe to be sawn.
Overload protection and spin-speed regulator
Model 170 is equipped with overload protection. When
the blade is dull or the cutting speed is too high, the
overload protection cuts power automatically. Restore
the power by pushing the overload protection switch.
There is a spin-speed regulator in model 170E. A
suitable spin speed is selected, determined by the
material to be sawed. There is also an overload
protection in the regulator. It automatically cuts the
power off in an overload situation. The power is
automatically restored as soon as the motor has
cooled sufficiently. There is a red indicator light in the
regulator, which warns of an impending overload and
overload protection function. The indicator light in
question turns on for a moment every time the motor
is started. This is normal and does not require any
actions.
Straightness of cut and adjusting wheel
The cut is affected by many factors, e.g. the size of
the pipe, the material, the wall thickness, the quality
of the pipe's surface, the roundness, welded seams,
blade condition, feed rate, operator's experience. For
this reason the result may vary, and the cut may turn
to left or right (misalignment of the cut's starting and
ending point) (Fig M). The pipe saw gripper has one
adjustable wheel (Fig A/9) which be used for improving
the quality of the cut and for reducing the misalignment.
10
Operation
Fig J
Fig K
Fig L
Fig M
Gap to left Gap to right