Siemens Milltronics MUS Operating Instructions Manual page 15

● Insert idlers of decreasing trough angles between the head pulley and the normal run of
idlers or there will be a considerable amount of stress on the belt edges and the idlers
adjacent to the head pulley. The stress is transmitted to the scale.
Note
On conveyors with 20° trough idlers throughout, a minimum of two fixed 20° idlers must
be located between the scale idler and the head pulley.
①
②
③
④
Note
On conveyors with 35° trough idlers throughout, a minimum of two 35° and one 20°
retreat idlers must be located between the scale and the head pulley.
①
②
③
④
⑤
⑥
Note
On conveyors with 45° trough idlers throughout, a minimum of two 45°, one 35°, and one
20° retreat idlers must be located between the scale and the head pulley.
Milltronics MUS
Operating Instructions, 06/2012, 7ML19985CQ02-02
20º idlers
Minimum 3 idler spaces
Head pulley
Belt scale
35º idlers
Minimum 4 idler spaces
Head pulley
20º idler
35º idlers
Belt scale
Installing/mounting
4.2 Conveyor Considerations
13