Take a careful look at the tracking.

The most relevant feature is the load station. I assume it is very close to the tail pulley. The following tthree points should be considered.

1. Look at the load impacting onto the belt. If the product hits one idler wing roll more than the other, the belt will be forced to respond and push downward on the dominant wing roll.

2. Look at the trajectory at impact that can detrain the belt with a sideways thrust

3. Local idler alignment in the vertical, tranverse and perpendicular alignment to the belt axis.

Lawrence Nordell ■

If the belt is empty:

1. remove or raise skirtboards to eliminate their possible misalignment to check if this is the influence

2. check idler alignment to be perdendicular to the belt within a few millimeters side to side

3. check to see if the idler plane of the center rolls are horizontal to earth

It seems obvious that the belt is forced to the mistracking position. Having such a short belt, there are not many options. ■

If everything is aligned as you say, then check that the idlers are installed the right way round.

LSL Tekpro ■

archonsengr

Go to the Scandura website below and check out the "troubleshooting" section and also the "Care and Maintenance" section has a start-up check list that you can follow as well as proper belt training technics.

http://www.scandura.net/technical/index.html

Guide rollers are only masking the problem and should only be used as a temporary fix until the real problem can be resolved. These type of rollers can cause more harm than good over time, as they will continuously wear away the edge of the belt.

Hope this helps. Good luck.

Gary Blenkhorn ■

Tracking a belt starts with having the correct belt for the application. It must rest fully in the trough both in the loaded and unloaded condition. Check for square splice and belt camber. Crooked splice will show as quick side to side movement, belt camber is when the belt is banana shaped.

Many other factors could cause a belt to tyrack poorly. See section 15, page 162 of Foundations III by Martin Engineering for additional information on tracking a belt. ■