Interroll DL Series - Page 54

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Version 1.2 (08/2022) en
Translation of original operating instructions
Troubleshooting
Fault Possible cause Remedy
Cap bearing
failed
Overload Checkwhethertheloadoftheapplicationmeetsthespecications
of the drum motor.
Impact load Checkwhethertheloadoftheapplicationmeetsthespecications
of the drum motor.
Belt tension too high Check whether the belt is tensioned too much. Reduce belt tension
as necessary.
Poor lubrication Check oil level and installation of drum motor.
With vertical mounting or if the motor is tilted by more than 5° (2°
forDL0113),checkmotorspecicationsofdrummotor.
Load or incorrect
adjustment of shaft
Check whether screws have been overtightened and whether
frame or motor mount are incorrectly adjusted.
Shaft seal damaged/
worn
Check for external contamination.
Contact the local Interroll dealer.
Loose or tight seating of
bearing on shaft
Contact the local Interroll dealer.
Gear box failure Overload/impact load or
regular wear
Checkwhethertheloadoftheapplicationmeetsthespecications
of the drum motor.
Check service life.
Rotor bearing
worn/ failed
Poor lubrication Check correct oil type and oil level.
Rotor drive worn
or teeth broken
o
Very high startup torque Checkwhethertheloadoftheapplicationmeetsthespecications
of the drum motor.
Check oil, maximum number of stops/starts and permissible
starting torque.
Toothed sprocket
worn or teeth/
boltsbrokeno
Start-up under overload
and/or impact load or
while blocked
Checkwhethertheapplicationandloadmeetthespecicationsof
the drum motor.
Check whether startup is blocked.
Interim gear box
and bearing
worn/failed
Poor lubrication, or worn
gear box or bearing
Check oil level.
Check service life and tolerances of journals and drives/shafts.