Cleaning; Pulse-Jet Cleaning The Filter; Cleaning The Filter Pre-Separator - Esta WELDEX FT Operating Instructions Manual

13. Cleaning

If necessary, the system can be cleaned with a damp cloth.
It must never be cleaned with flowing water.

13.1 Pulse-jet cleaning the filter

The WELDEX FT has built-in pulse-jet cleaning, a pneumatic method of cleaning
the filters. If the vacuum set at the differential pressure switch is reached during
operation, filter cleaning takes place.
Additionally, the filters can be cleaned manually with the fan turned off (the main
switch must remain on) by starting manual cleaning at the control unit. Each filter
will now be cleaned twice by a compressed air blast. The manual cleaning
process can be repeated as often as needed.
If the cleaning cycle starts all over again right after cleaning and start-up, check
the amount of material in the dust collection equipment. If necessary, empty the
container. If the cleaning is still active, you must replace the filter elements.

13.2 Cleaning the filter pre-separator

The filter pre-separator reduces entry of coarse particles into the filter chamber,
thus reducing the risk of a filter fire from flying sparks. The separator must be
checked regularly for adhered residue and cleaned.
Flammable adhered residue can be ignited by entry of sparks and cause a
filter fire!
Depending on the application, weekly inspection of the filter pre-separator's
exterior and interior is necessary. If adhered residue is found, it must be swept
down into the collection container for coarse dust with an appropriate sweeping
device or removed with a suitable industrial vacuum cleaner.
667150-52-08 WELDEX FT 25