Trouble Shooting Guide

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Problem Possible Cause(s) Solution(s)
Splice clips breaking • European style sprocket arrangement used (sprockets in even spaces)
• Belt improperly spliced
• Clips and/or strands not straightened after splicing
• Sprockets not properly installed/aligned
• Uneven tension
• Adjust to American style arrangement (sprockets in odd spaces)
• Reinstall following splicing instructions
• Straighten clips/strands with pliers
• Check sprocket alignment and adjust if needed
• Adjust tension so it is equal on both sides of frame
Belt surges • Belt not supported on frame
• Load too high
• Uneven product loading
• Wrong type of wear strips
• Install supports on return path
• Change to heavier mesh belt
• Correct loading method
• Change to different type / material / design / wear strip
Excessive wear strip wear • Abrasive cleaner used
• Load too high
* Not enough wear strips
• Wrong type of wear strips
• Install spray wash on belt to reduce grit build up
• Change to heavier mesh belt
• Install more wear strips
• Change to different type / material / design / wear strip
Damage to flights • Product jamming on loader
• Flights getting caught on frame support
• Flights rubbing on return path
• Check hopper/chute in-feed sides and correct jamming
• Check for obstructions on frame and correct
• Allow sufficient clearance with frame; indent flights
Belt edges curling up • High temperature
• Too much tension
• Belt joints unsupported
• Load too high
• Use crowned belts (a specialty belt); Call Technical Support at 800-922-2637 or 603-644-2500 for information and pricing
• Adjust tension take-up
• Adjust sprockets/blanks/rollers to within 3/16" of Z-bends
• Change to heavier mesh belt
Belt not tracking properly • Sprocket teeth misaligned
• Conveyor frame not square
• Support rolls not squarely aligned
• Drive shaft not aligned
• Uneven product loading
• Belt improperly spliced
• Belt is "wrong side up"
• Check alignment and adjust
• Realign conveyor frame
• Realign support rolls
• Realgn following alignment instructions
• Correct loading method
• Reinstall following splicing instructions
• Reinstall belt with smooth side up
Belt runs to one side • Sprocket teeth misaligned
• Conveyor frame not square
• Support rolls not squarely aligned
• Transfer roll not functioning properly
• Drive shaft not aligned
• Uneven product loading
• Uneven tension
• Belt improperly spliced
• Check alignment and adjust
• Realign conveyor frame
• Realign support rolls
• Change to grooved end roll
• Realign following alignment instructions
• Correct loading method
• Adjust tension so it's equal on both sides of frame
• Reinstall following splicing instructions
Belt wears edges • Not enough clearance
• Conveyor frame not square
• Shafts not locked down
• Sprocket teeth misaligned
• Belt expansion from high temperature
• Adjust clearance between belt edge and on side rail
• Realign conveyor frame
• Use collars on outside of bearings to prevent lateral shifing
• Check alignment and adjust
• Adjust clearance between belt edge and side rail to allow for heat expansion
Belt slips on sprockets • Insufficient tension
• Sprockets not properly installed/aligned
• Worn sprockets
* Drive sprockets too small
• Insufficient belt wrap
• Adjust tension take-up
• Check sprocket alignment; adjust if needed
• Replace sprocket
• Replace with larger diameter sprockets from Wire Belt, or increase wrap
• Increase wrap around drive sprockets up to between 120º to 180º
Belt blackening • Frozen/stuck roller
• Too much tension
• Load too high
• Improper/inadequate cleaning
• Free roller; reduce or eliminate steel-to-steel contact
• Adjust tension take-up
• Change to heavier mesh belt
• Install continuous spray cleaning device on conveyor
Excessive belt wear or poor belt life • Contact with other equipment
• Support rolls not rotating
• Too much tension
• Uneven tension
• End roll/reverse bend too small
• Wrong type of wear strip
• Abrasive cleaner used
• Load too high
• Speed too high
• Belt improperly spliced
• Frame not level
• Eliminate contact
• Check bearing and replace if needed
• Adjust tension take-up
• Adjust tension so it is equal on both sides of frame
• Check chart pg. 4 for min. diameter
• Change to a different type/material/design/wear strip
• Install spray wash on belt to reduce grit build up
• Change to a heavier mesh belt
• Reduce running speed
• Reinstall following splicing instructions
• Correct affected area
Excessive sprocket wear • Too much tension
• Abrasive cleaner used
• Sprocket teeth misaligned
• Not enough drive sprockets
• Sprockets not properly installed/aligned
• Load too high
• Belt speeds too high
• Shaft(s) bent
• Adjust tension take-up
• Install spray wash on belt to reduce grit build-up
• Check alignment and adjust
• Add more sprockets
• Check sprocket alignment and adjust if needed
• Change to heavier mesh belt
• Reduce speed
• Check shafts and replace if needed
Belt jumps on sprockets • Worn sprockets
• Wrong size sprockets
• Belt is "wrong side up"
• Product build-up between belt and sprockets
• Too much tension
• Replace using Wire Belt sprockets
• Replace with correct S.P.F. (strands per foot) and sprocket dimensions
• Reinstall belt with smooth side up
• Install wiper on return belt to prevent product getting trapped; install side guards on frame
• Adjust tension take-up