User manual

90
Version 2.4 (10/2011) en
Original instructions
Drum Motor
Installation
Mounting belt
Belt width/shell length
Drum Motors having less than 70 % belt contact or fitted with a modular belt or
without a belt may require a different design and must be specified at time of
order. If in doubt, contact Interroll.
Belt alignment Crowned shells help to centralise and guide the belt during normal operation.
However, belt alignment should be made carefully, checked frequently during the
initial start up phase and adjusted as necessary according to the load conditions.
¾ Align the belt by using the return idler rollers, carrying rollers and/or when
fitted, the bend pulleys or snub pulleys.
¾ Check the diagonal measurements (between the drum motor shafts and tail/
idler pulley shafts or belt edge to belt edge).
The maximum difference must not be more than 0.5 %.
The gap between the belt and the slider bed plate should be not more than 3 mm.
Risk of overheating due to small belt
¾ Ensure that the Drum Motor is fitted with a conveyor
belt that covers at least 70 % of the Drum Motor face
width (roller length).
Risk of shortened life expectancy, damage of belt and
bearing due to misalignment
¾ Align the Drum Motor, belt and idler pulleys following
the instructions in this manual.
Diagonal check
Belt position
0-3 mm