Interroll Drum motor series i, S, S/A, D
Assembly and installation
Version 4.1 (06/2015) en-US
Translation of original instruction manual
79
4
Ensure that the installation position is open and easily accessible to facilitate cleaning or
testing.
Installation considering hygienic aspects
4
To adhere to the recommendations of the EHEDG, it must be ensured that there is no metal-
to-metal contact at the bearing surfaces between motor shaft and conveyor frame, e.g. by
inserting a rubber seal between shaft and frame. The material of the seal must meet the
specifications of the USDA/FDA and EG 1935/2004.
Belt assembly
NOTICE
Risk of overheating if belt is too small
4
Ensure that the drum motor is operated with a conveyor belt that covers at least 70 % of the
drum tube.
For drum motors with less than 70 % belt contact and drum motors with form-fit driven belts or
without belt, a motor dimensioned for this purpose is required. This must be specified at the time
of ordering. If in doubt, please contact Interroll.
Cambered tubes center and guide the belt during regular operation. Nevertheless, the belt
should be carefully aligned, frequently checked during startup and readjusted depending on the
load.
NOTICE
Adjustment errors can lead to a shortened service life as well as damages of the belt
and the drum motor ball bearings.
4
Adjust the drum motor, belt and idler pulleys according to the instructions in this instruction
manual.
4
Adjust the belt with the synchronous returning rollers and support rollers and/or (if available)
with the idler pulleys or snub pulleys.
Installation considering
hygienic aspects
Belt width / tube length
Belt adjustment
