Misalignment is one of the most common problems faced when working with rotary drums. Though aligning a drum is a simple solution, leaving a drum out of alignment can result in major problems. Routinely having a rotary drum re-aligned is an important part of preventative maintenance, and the overall longevity of a rotary drum.
What causes a drum to be misaligned?
A misalignment is often the result of an improper base installation. Proper drum base installation will help to ensure that the drum properly ‘floats’ between thrust rollers. Misalignment in a base will propagate through the drum, causing wear and damage to other drum components, such as trunnion wheels, tires, drive components, and thrust rollers.
Misalignment also occurs naturally, as a drum experiences normal wear and tear, causing the drum to gradually fall out of perfect alignment. For this reason, it is important to routinely have a drum re-aligned.
How do you know if your drum is misaligned?
Misalignment causes a drum to ride harder against the thrust roller, therefore wearing faster on the tire sides. This excessive riding can result in grooves and/or gouges on the face of the tyre. There are several tell-tale signs that can be a good indication that a rotary drum is out of alignment:
- Excessive tire/wheel wear
- Damage to the tire/wheel
- Excessive wear on the thrust roller
- Damage to the thrust roller
- Pinion/girth gear wear
- Pinion/girth gear damage
In addition to this, watching a drum run can indicate that it is time for a re-alignment. A working drum that is properly aligned should have little to no contact with thrust rollers. Drive components should run smoothly, without excessive chatter or vibrations.
Ensuring proper alignment of your rotary drum is an integral part of preventative maintenance, and a rotary drum that stands the test of time. Regular maintenance and inspection of your rotary drum will only help in prolonging the life of your drum, and ultimately minimizing maintenance costs and down time.
From spare parts, to inspections and repairs, FEECO’s blue ribbon service team uses decades of experience and knowledge to assist you with your service needs.