51
6 Appendix
6.5 Troubleshooting
LEHNER POLARO
®
L/XL
error diagnostic
Last updated: 10/201
1
The following information should help you resolve minor problems yourself.
You are welcome to call us as needed. W
e are glad to help.
Problem
Cause
Solution
No display
+ and - poles interchanged, fuses defective, plug
connection not made.
Check polarity
, swap if necessary
, replace fuses if necessary
, check
plug connections.
Spreader stops
Emergency Stop switch pressed.
Before switching on-again ensure that the cause of the Emergency
Stop
has
been
rectified.
Release
Emergency
Stop
switch.
Screw conveyor not turning.
"Spreader stopped"
"Screw blocked"
Lumpy or frozen material in tank, material too compacted, foreign bodies in screw area, fall tube blocked. Claw coupling defective, motor
defective.
Free the shaft with a 27 mm wrench at the front shaft end. Clear the tank and shred and/or remove foreign bodies or lumpy material. Check fall tube and clear if necessary
. Call service technician.
Screw conveyor does not
reach set speed.
Excess load, plain bearing or motor bearing not
running smoothly
Increase the speed to maximum for approx. 10 seconds. Check that the motor turns easily
, replace motor if necessary
, check battery
voltage, lubricate at regular intervals (see chapter 5.2 Maintenance).
"Spreader stopped"
"No
material
flow"
Bridge formation due to spreading material
being highly frozen or too compacted. Incorrect vibration time or vibration duration. Screw not
turning.
Loosen spreading material using a wooden stick (broom handle)!!! Refer to the safety instructions!!!
Change the vibration time and/or vibration duration (see chapter 4).
"Spreading disk does not
reach set speed.
Spreading disk not turning.
"Disk error"
Excess load, motor bearing not running smoothly
,
blockage caused by material, motor defective.
Clear disk; increase the speed to maximum for approx. 10 seconds. Caution!! Check the surrounding area before you do this.
The
spreading width will be increased as a result! Check that the motor turns easily
, replace motor if necessary
, check battery voltage,
check cabling, lubricate at regular intervals (see chapter 5.2 Maintenance).
Vibrator does not vibrate
Vibration duration set to 0 seconds, cable break,
motor defective.
Change vibration duration (factory setting 4 seconds) on control panel, call service technician.
"Residual discharge“ or
"Calibration test" "Disk down"
although the disk has been
swung upwards.
Sensor defective, sensor cable broken, metallic
object in front of the sensor
.
Remove object, call service technician.