Instructions for Belt Adjustment

Belt running

Before adjusting the belt running, check that the machine is standing straight and that the drive and return drums and the idler rollers are at right angles to the conveyor frame.

It is expedient to carry out adjustment at the slowest speed. If the belt running is to be moved towards "E" (Figure 2), drive drum and return drum must be adjusted in the

directions of the arrows.

If adjustment of the drive drum and return drum is not sufficient, the idler rollers and the return rollers must also be adjusted.

If the conveyor belt is to run more to the left-hand side as seen in the direction of conveying (Figure 3), the left hand idler roller is moved back and the right-hand idler roller correspondingly forward. In the case of the return rollers - as seen in the running direction - the left-hand roller is moved forward and the right hand roller back. Proceed analogously if the conveyor belt is to run further to the right hand side.

Caution:

If the conveyor has no idler rollers, adjustment of rollers 1 to 6 is not necessary.

Belt tension

With straining screws (2) at the return drum of belt conveyors, the belt tensioning can be changed moving the tension plate (1) after having loosened the fastening screws/clamping device (3). By this way, the belt (4) will be loosened or tensioned.

After adjustment, the fastening screws/clamping devices have to be tightened again.

The belt is correctly tensioned when it can be deflected only slightly between two lower run rollers with the flat hand using moderate force.

Adjustment correct belt tension:

Place the conveyor belt loosely over drive and tail pulley.

Tighten the straining screws (2) evenly on right and left side by half turn.

Repeat tightening like this until the drive pulley carries the belt without slipping.

Load the conveyor belt stepwise until maximum material quantity.

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