Interroll DL Series - Page 53

Version 1.2 (08/2022) en
Translation of original operating instructions 53 of 64
Troubleshooting
Fault Possible cause Remedy
Belt not correctly
adjusted/belt
does not run
centered
Material deposits on
drum motor/rollers/belt
Ensure that belt and drum shell are not blocked and that all
rollers and drum shells can turn freely.
Check belt connection.
Material deposits on
rollers
Checkwhethermaterialpeelsoandensurethatthecleaning
devices function correctly.
Defective or poorly
axedbelt
Check belt condition and belt connection.
Belt tension higher on
one side
Ensure that the belt tension is equal on both sides.
Check whether the belt's continuous connection was implemented
in parallel.
Top/bottom rollers not
correctly adjusted
Check adjustment of support rollers and return wheels.
Start roller/end roller/
interim roller not correctly
adjusted
Check adjustment of drum motor and roller.
Conveyor frame not
correctly adjusted
Ensure that the conveyor frame is rectangular, parallel and
straight over its entire length.
Feeding materials from
one side
Check force or friction at transfer point.
Beltprolenotconnected
todrumprole
Ensurethatbeltanddrumprolesmatchandarecorrectly
connected and adjusted.
Drum crowning too low
for belt
Checkbelt/drummotorspecications.
Oil discolored
– metallic silver
particles
Wear of gear teeth or
bearings
Check condition of bearings and seals. Check whether there is an
overload.
Oil discolored –
white color
Contamination by water
or other liquid
Check condition of seals and contamination by water/liquid.
Change oil.
Oil discolored –
black color
Extremely high operating
temperature Overload
No belt installed
Check whether the application/operating conditions meet(s) the
specicationsofthedrummotor.
Check whether there is an overload current or high ambient
temperature.
Cable/terminal
box defective or
damaged
Incorrect operation by
the customer or damage
during installation
Check type of damage and possible cause. Replace terminal box.
Damage during transport Check type of damage and possible cause. Replace terminal box.