• Topic ID: id_17423392
  • Version: 4.0
  • Date: Jan 20, 2020 8:34:40 PM

Gantry and Detector Filter Cleaning

Prerequisites

Overview

This procedure defines the necessary steps to clean the Gantry and Detector plenum filters.

1 Detector Plenum Filter cleaning

Procedure

  1. Using the field HEPA vacuum, clean the filter through the opening in the plenum behind the fan plate. Be careful around the plenum thermistors. See Figure 1 showing the thermistors, cabling and grillwork covering the filter to be cleaned.
    note:

    The grill is there to provide stiffness to the filter assembly and to make sure the EMC mesh on the back of the filter is not damaged during cleaning.

    Figure 1. Plenum Filter and Thermistors

2 Gantry Filter Cleaning

Procedure

  1. Initially vacuum the gantry filter in place to avoid shaking loose dust and debris.

    Figure 2. Gantry FIlter on Gantry left

  2. Remove the gantry filter and vacuum from the front to pull dust and debris out of the filter. (vacuuming from back first may pull dust deeper into filter making it harder to remove)
  3. Vacuum the back after cleaning the front to remove any dust that penetrated the filter.

3 Finalization

Procedure

  1. No finalization steps necessary for the detector plenum filter.
  2. No finalization steps necessary for gantry filter.