Breakdown Assistance; Maintenance/ Working Information; Replacement Parts; Accessories - Weller WFE 20D Manuel D'utilisation

5. Breakdown assistance

Malfunction Cause
Extraction power missing Pipe system leaking
Filter is dirty
Vacuum is too low
WFE 20D is not running Thermally switched off
Filter display is red Filter is full
Unit is not running Minimum pressure hose Reconnect the hose to the
was not replaced after
the filter change
Sub-micron particle Pre-filter has not been
becoming dirty to quickly used
6. Maintenance, working information
Various fluxes, flux components as well as different dust particles in the extracted air
can significantly reduce the filter's working life.
The sub-micron particles in the air increase when soldering or welding on varnished
insulated wire. The standardised F5 filter mat should be exchanged for a class F7 fine
dust filter for these or similar applications.
A compact filter with a greater quantity of active carbon (without particulate air filter
stage) should be used when extracting adhesive vapour.
Filter changes
The mains plug must always be pulled out of the mains socket before any
maintenance work is undertaken. To change the filter you must first open the locking
clamps (5) between the turbine housing (2) and the filter housing (1) and then lift off
the filter housing. Pull the vacuum hose off of the compact filter. The compact filter
Solution
(7) and the fine dust filter (8) can be removed using the carrying straps. The fine dust
filter is laid inside the compact filter (see exploded drawing).
Reseal the pipe system
Change the filter
Attention! The minimum pressure hose must be reconnected correctly and the
Increase the extraction power
(mode 1 only)
Leave the WFE 20D to cool
Dirty filter are classified as hazardous waste.
down
Switch on again after approx.
3 hours.

7. Replacement parts

Change the filter
See Exploded Page 54 for replacement parts for standard installations
Fine dust filter F7
filter.
Wide-band gas filter (50% AKF, 50% Puratex) without an H13 particulate air filter
Use a pre-filter

8. Accessories

Fit an F7 filter
Use a preliminary separator if
0058735909 Remote control
the proportion of solid matter
Pipe system DN40 (Page 55)
is high.

9. Shipment

1 WFE 20D including filter set
1 connecting cable
1 Operating manual

10. Appendix

Accessories for DN40 pipe system
holding latches must be turned downwards when replacing the filter.
25