|Bowl does not turn
||Part jammed in feeder
||Lock-out/tag-out; locate and remove jammed part.
|Air clutch is not engaged (scallop style feeder only)
||Check air supply; check MAC valve operation.
|Bowl and disc turn; but parts jam
||Bowl or prefeeder speed incorrect
||Check settings. Correctly set bowl and prefeeder speeds.
||Check changeover settings. Verify the feeder is set up for the part to be run.
|Tooling or air jets need adjustment
||Check air jet positioning, and refer to your direct supplier’s “As-Built Tooling Documentation”
|Surface of parts scuffed or scratched
||Particulate in feeder
||Clean feeder bowl and disc to clear any particulate or dust.
|Parts are scratched prior to feeding
||Check upstream equipment and product supply.
|Feed rate is too low; parts exit the feeder correctly
||Bowl speed set incorrectly
||Check bowl speed; reset to original speed specifications.
||Check the prefeeder speed. Check the prefeeder’s time delay relay. Check bowl level sensor location and operation.
|Feeder is “starved” for parts
||Make sure the prefeeder is set at the correct rate, and there are sufficient parts in the prefeeder hopper.
|Air supply is off or not set correctly
||Check the air pressure settings. Make sure air is supplied to the air jets. If air is off, turn it on.
|Product backs up into the feeder
||Max level sensor not operating
||Check maximum level sensor on conveyor for proper operation.
|Product upside down exiting feeder
||Air jets or tooling set incorrectly
||Check air jet settings. Check air proximity operation. Check tooling backup ring position (refer to your direct supplier’s “As-Built Tooling Specifications” and/or changeover procedures.
||Safety door(s), guards or covers are open
||Check all safety door(s), guards, and covers for proper alignment.
|Max level on output conveyor reached
||Feeder may be designed to stop and start on demand of downstream operations.
|Product keeps turning around in the bowl but doesn’t come out
||Inhibit gate or inhibit solenoid not operating properly
||Check inhibit cylinder operations; check air setting for cylinder or solenoid