Moulder Feed Problems 1: Caused by Machine

      A problem-solution checklist chart for correcting moulder feed problems. November 27, 2006

Reprinted with permission from Diehl Machines,

Probable CauseHow to Correct
Guides misaligned.Realign the side guides.
Bed plates misaligned.Realign the bed plates.
Feed works worn.Repair or replace worn parts.
Feedrolls worn.Replace or sharpen feedrolls.
Improper feedrolls.Use the correct feedrolls for the material being run.
Hopper worn.Repair or replace worn parts.
Overloads kicked out.Check amp readings. Replace worn overloads. Repair or replace bad motors.
Spindle belts slipping.Check the tensionof the spindle belt.
Bed lubricatornot working.Repair, clean orfill bed lubricator.
Feedrolls not setat the same height.All infeed rollsshould be the same height from the bed plates.
Holddown not parallelto the bed.Use a dial indicatorto set the holddown shoe parallel to the bed plate.
Worn spindle bearings.Repair or replacespindle unit.
Low incoming airpressure.Check air system.Upgrade if necessary.
Worn spindle belts.Replace worn spindlebelt.
Grooved bed misaligned.Align the groovedbed plates using the right hand groove.
Patterned holddowntwisted.Position the patternedholddown when a finished part is under the holddown.
Clogged or inadequatedust system.Repair or upgradedust system.

To view the other articles in this series, see:
Moulder Feed Problems 2: Caused by Material
Moulder Feed Problems 3: Caused by Tooling

Reprinted with permission from Diehl Machines,

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