# Cleaning the Vieira MCO hammer mill

URL: https://moinhosvieira.com.br/en/cleaning-the-hammer-mill-vieira-mco/  
Updated on: 2026-11-04  
Other languages: Español: https://moinhosvieira.com.br/es/limpieza-del-molino-vieira-mco/ · Português: https://moinhosvieira.com.br/limpeza-do-moinho-vieira-mco/

> Clean the Vieira MCO mill right after use or when changing products: with the mill switched off, remove the feed funnel, the feed elbow and the feed hopper and clean with compressed air.

## Step by step

1. **Switch the mill off and wait for it to stop.** Clean the mill only when it is switched off and the rotor has stopped completely.
2. **Remove the feed funnel.** Take off the feed funnel.
3. **Remove the feed elbow.** Loosen the feed elbow nut with the special wrench supplied with the mill and remove the elbow.
4. **Remove the feed hopper.** Take off the feed hopper to clean it.
5. **Clean with compressed air.** Use compressed air to clean the removed parts.
6. **Reassemble and check.** Refit the parts and check the fit of the feed elbow and that the door is closed before starting the mill.

## When to clean

Clean the mill regularly so that the processed product does not build up over time. The best time is right after use or when you are about to change the type of product.

## Heavy build-up

In extreme cases the rotor can also be removed for cleaning. If you have never done this, contact technical assistance first.

If product is leaking from the door, see [replacing the door seal](https://moinhosvieira.com.br/en/replacing-the-door-seal-hammer-mill-vieira-mco/).