User manual

112
Version 2.4 (10/2011) en
Original instructions
Drum Motor
Troubleshooting
Belt slipping on Drum Motor Belt blocked Make sure the belt and Drum Motor are
free from obstruction and that all rollers
and drums rotate freely.
Insufficient friction between Drum
Motor and belt
Check belt condition and tension, check
drum shell or lagging condition and look
for oil or grease between belt and Drum
Motor.
Excessive friction between belt and
support / slide bed
Check underside of belt and slide bed
for dirt / poor finish.
Check for water infiltration between belt
and slide bed which could cause suction
and drag.
Insufficient belt tension Check belt condition and tension or
shorten belt.
Insufficient or wrong drum profile for
modular belt
Make sure the belt and drum profiles /
teeth are engaged properly. Make sure
the height and tension of the belt are
according to the belt manufacturer's
specifications.
Oil, grease or fat between belt and
shell of Drum Motor
Remove excessive build up of oil, fat or
grease.
Make sure cleaning devices function
correctly.
Head / tail / transfer pulley diameters
too small for belt
Check minimum drum diameter for belt.
Knife edges / small diameter pulleys
may cause excess friction and require
more power.
Lagging slipping on drum shell Check lagging condition and adhesion
of lagging to shell.
Replace lagging. Shot blast or roughen
the shell surface to ensure good lagging
adhesion.
Belt jumping on Drum Motor Belt blockage or material build-up on
drums
Poor or damaged belt joint
Excess friction between belt and
slide bed
Make sure the belt and drum are free
from obstructions and that all rollers and
drums rotate freely.
Check belt joint.
Conveyor belt loose or damaged Check belt tension, condition of belt and
lagging.
Check belt tracking and alignment.
Incorrect lagging / sprocket profile
for modular belt
See symptom "Belt slipping on Drum
Motor".
Symptom Possible cause Help