Troubleshooting to Hoses and pumps-Venturi operation
Problem, Cause and Remedy
|Plugged from impact fusion-hard build-up.||Normal build-up||Clean or replace parts|
|Air pressure too high||Turn down air settings on pumps and guns|
|Moisture in air supply||Check air supply for clean, dry air.|
|Composition of powder feed hoses||Check hoses|
|Worn venturis and wear parts||Replace worn parts|
|Powder too fine||Too much reclaim added to virgin powder
Virgin powder pulverized too fine by manufacturer
|Powder type or formula||Some resin types tend to have more impact fusion. Check with your powder supplie|
|Insufficient powder feed||Powder not fluidizing||See fluidized bed section|
|Obstruction from contaminated powder supply||Clean out venturis and hoses.
Check powder supply for contamination.
Sieve all reclaim before using
|Kinked or flattened hoses||Replace if permanently deformed.
Avoid sharp bends. Use hose saddles for reciprocators.
Run hoses in covered trench across traffic aisles
|Worn pump venturis.||Replace worn parts|
|Low air pressure||Check air supply.
Adjust all settings to pumps and guns