Laski LS 150 T, Operating Instructions Manual

Page: 36 / 48

36
NOSTRESS System
– Speed Regulation
This system is intended for overload protection of
the combustion engine consisting of an electronic
control unit and a speed sensor installed on the
rotor shaft
No Stress ON – the machine chipping with
automatic regulation the infeed of the material (
there is no overload of the combustion engine
consisting)
No Stress OFF – this one use only when the No
Stress control unit is fail so that the Chipper does
without automatic regulation the infeed of the
materiál.

Control unit:
This control unit displays actual rotor speed values. When the rotor stops, the unit
displays a total number of running hours "th". To display a daily number of
running hours, just press the button "S". To reset this daily number, just press the
button "S" once to display a total number of running hours "th" and then press it
again and hold for total resetting. This control unit is protected by two fuses: 7,5 A
– installed just by the unit and 4 A – installed inside.

Right function of NOSTRESS system
This speed regulator reduces material feeding upon contingent overloading. The
chipping wheel speed is set by the manufacturer to 1525 rpm to turn the loading
rolls off and to 1550 rpm to turn the rolls on again. Actual rotor speed values are
displayed on the control unit.

Speed sensor:
This encapsulated sensor in fitted on a holder in a distance of 3,2 mm from the cam
lobe. In the rear part of the sensor sleeve there is an orange LED installed which
should be flashing in case of proper sensing.
The own setup (respectively check-up) of the speed sensor should
be done at standstill only.