FAQ - Frequently Asked Questions
Usual questions and more common technical problems solving
This is the "usual questions", mainly know as "Frequently Asked Questions" (FAQ) page. Here you could find answer to the most common questions. If you do not manage to find the answer to your question, please get in touch with us by filling in the contact form you could find at the bottom of this page.
Adjust idlers in affected area
Modify the affected area
Re- adjust idlers in affected area
Free idlers and improve maintenance and lubrification
Remove accumulation
Improve maintenance
Install screapers and other cleaning devices
Level structure in affected area
Remove affected splice and resplice
For new rubber conveyor belts this condition should disappear during brake-in
In rare cases belt must be straightened or even replaced
Check storage and handling of belt rolls
Adjust idlers in affected area
Modify the affected area
Re- adjust idlers in affected area
Remove accumulation
Improve maintenance
Install screapers and other cleaning devices
Adjust chute to place load on centre of belt
Discharge material in direction of belt travel at or near belt travel
Install training idlers on the return run prior to tail pulley
Adjust idlers in affected area
Improve loading and transfer conditions
Install cleaning devices
Improve maintenance
Install training idlers on the return run prior to tail pulley
Adjust idlers in affected area
Re- adjust idlers in affected area
Improve loading and transfer conditions
Install cleaning devices
Improve maintenance
Replace pulley lagging
Free idlers and improve maintenance and lubrification
Improve loading and transfer conditions
Install cleaning devices
Improve maintenance
Add counterweight or increase screw take-up tension to value determined from calculation
Replace pulley lagging
Lag drive pulley
Increase belt wrap
Install belt cleaning devices
Add counterweight or increase screw take-up tension to value determined from calculation
Replace pulley lagging
Lag drive pulley
Increase belt wrap
Install belt cleaning devices
Increase speed, same tonnage or reduce tonnage, same speed
Reduce friction with better maintenance and replacement of damaged idlers
Decrease tension by increasing arc of contact
Reduce counterweight to minimum amount
Lighten counterweight to value required by calculation
Recalculate belt tensions and select proper belt
run belt in with mechanical fasteners
Refer to SIG’s manuals
Contact SIG for verifying minimum distances needed
Install skirt boards with increasing height in direction of belt travel
Use skirt board rubber and not old belt
Install cushion idlers
Improve loading to reduce spillage
Install baffles
Widen chute
Reduce impact by improving chute design
Install impact idlers
Adjust chute to place load on centre of belt
Discharge material in direction of belt travel at or near belt travel
Improve loading and transfer conditions
Install cleaning devices
Improve maintenance
Remove material accumulations
Install cleaning devices
Use self-cleaning return rolls
Improve maintenance and lubrification
Replace with belt of heavier cover gauge or higher quality rubber
Increase tension if unnecessarily low
Reduce idler spacing
Free idlers and improve maintenance and lubrification
Increase tension through screw take-up or add counterweight
Lag drive pulley
Increase arc of contact
Improve loading and transfer conditions
Install cleaning devices
Improve maintenance
Tighten bolts
Replace lagging
Use vulcanized-on lagging
Install scrapers on return run ahead of tail pulley
Reduce forward tilt of idlers
Free idlers and improve maintenance and lubrification
Increase tension through screw take-up or add counterweight
Lag drive pulley
Increase arc of contact
Improve loading and transfer conditions
Install cleaning devices
Improve maintenance
Replace pulley lagging
Use conveyor belts designed for a specific condition.
Refer to SIG’s manuals
Improve housekeeping
Reduce quantity of grease used
Check grease seals
Increase speed, same tonnage or reduce tonnage, same speed
Reduce friction with better maintenance and replacement of damaged idlers
Decrease tension by increasing arc of contact
Reduce counterweight to minimum amount
Use proper fasteners and splice technique
Set up schedule for regular fastener inspection
Use belt designed for specific condition
Replace with smaller fasteners
Increase pulley size
Increase speed, same tonnage or reduce tonnage, same speed
Reduce friction with better maintenance and replacement of damaged idlers
Decrease tension by increasing arc of contact
Reduce counterweight to minimum amount
Install scrapers on return run ahead of tail pulley
Adjust transition in accordance with SIG’s Engineering Manual
Use larger diameter pulleys
Resplice using proper method as recommended by SIG
For new belt this condition should disappear during brake-in
In rare cases belt must be straightened or even replaced
Check storage and handling of belt rolls
Adjust chute to place load on centre of belt
Discharge material in direction of belt travel at or near belt travel
Improve loading and transfer conditions
Install cleaning devices
Improve maintenance
Install training idlers on carrying and return run
Same corrections as for 1, 2, 3
Install limit switches
Adjust transition in accordance with SIG’s Engineering Manual
Decrease idler spacing in curve
Increase curve radius
Reduce impact by improving chute design
Install impact idlers
Install scrapers on return run ahead of tail pulley
Use belt designed for specific condition
Replace with proper belt
Use larger diameter pulleys
Adjust transition in accordance with SIG’s Engineering Manual
Decrease idler spacing in curve
Increase curve radius
Reduce forward tilt of idlers
Replace idlers
Replace with heavier belt
Replace with proper belt
Increase tension if unnecessarily low
Reduce idler spacing
Improve housekeeping
Reduce quantity of grease used
Check grease seals
Make spot repair with vulcanizer or self-curling repair material
Use a belt with a lower gauge ratio and/or a thicker carcass
Improve housekeeping
Reduce quantity of grease used
Check grease seals
Use belt designed for specific condition
Recalculate belt tensions and select proper belt
Refer to SIG’s manuals
Strictly follow SIG’s instructions from Installation Guide
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