TL;DR
Spillage at the loading zone means skirting is worn or the chute is offset. Check skirt-to-belt gap first: it should be under 3 mm. Off-tracking belt needs correction before new skirting will seal.
What you might see
- product falling off the belt edges
- accumulation under the conveyor frame
- belt tracked but product still spills
- worn skirting at loading zone
Likely causes
Worn skirt boards with a gap greater than 3 mm to the belt surface allowing product to escape
Belt mistracking causing the load-bearing section to move toward an edge
Loading chute offset from the belt centerline directing product to one side
Excess loading rate exceeding the belt carrying capacity at the loading zone
Required tools
- Feeler gauge or ruler
- Wrench set (skirt clamp bolts)
- LOTO kit
- Replacement skirt rubber (if worn through)
Safety first
- Lock out the drive before adjusting skirting. The belt edge is a caught-in hazard.
- Check that skirt adjustments do not drag hard on the belt. Excessive skirt friction accelerates belt and skirt wear.
Procedure
- 1
Confirm the belt is tracking correctly before adjusting skirting. Skirt adjustment on a mistracking belt is a temporary fix.
- 2
Lock out the drive.
- 3
Measure the gap between the skirt board and the belt surface at multiple points. Any gap above 3 mm requires adjustment.[1]
- 4
Loosen the skirt clamp bolts and lower the skirt rubber until the gap is 1-2 mm above the belt. Tighten the clamp bolts.[1]
- 5
Check the loading chute alignment. The chute center should be within 25 mm of the belt centerline.
- 6
If spillage continues despite correct tracking and tight skirting, reduce the loading rate or install a deeper skirt section to contain the splash zone.
Sources
Hytrol EZLogic Accumulation Conveyor Service Manual, Hytrol Conveyor Company
Hytrol EZLogic Conveyor IOM, skirting and loading zone procedures (general)
View source
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