Laski LS 150 T, Operating Instructions Manual

Page: 40 / 48

40
Throttle valve closed Check up manual speed regulation for
loading
Control lever in wrong
position Press the lever in loading direction
Failure of NOSTRESS
system Measure voltage on coil of
electromagnetic valve; it should be

0
at max. speed
Faulty coil of
electromagnetic valve Coil replacement
Broken leads Check up wiring for integrity
Faulty hydraulic pump Pump replacement
Safety circuit not closed Tilt rear part of the loading chute and
check up hood position protected with
terminal switch
Blades touch opposite
edge Wrong setting of
clearance Set distance to 0,5 – 1 mm
Loosen blade bolts Tighten up fixing bolts
Clearance of chipping
wheel bearings Tighten up fixing bolt of wheel on its
shaft
NOSTRESS system
out
of function
Blown fuse Replacement of fuse 7,5 A
Faulty electronic
control unit Replacement of fuse 4 A (inside
control unit)
Vibrations on discharge
ducting Control unit replacement
Faulty speed sensor –
LED is not flashing Check up wiring
Loading chute gets
clogged Sensor replacement
Discharge duct gets
clogged
Too low speed of PTO
shaft Stop loading and increase speed at
chipping. Min. working speed of PTO
shaft at chipping is 350 rpm
Discharge duct
deformed Repair/replacement
Too small, dry or rotten
materials Mix before loading
Loading rolls
overloaded with
material Reduce loading roll speed
Bearings overheated Insufficient lubrication
or wrong lubricant used Lubrication and lubricants should be in
accordance with recommended
intervals and sorts (LTA 3EP MOL
Lition)
Too high speed of
chipping wheel Optimal speed should not exceed 1900
rpm (PTO shaft: 620 rpm)