Breakdown Assistance; Maintenance, Working Information; Replacement Parts; Accessories - Weller WFE 20D Operating Instructions Manual

5. Breakdown assistance

Malfunction
Extraction power missing
WFE 20D is not running
Filter display is red
Unit is not running
Sub-micron particle
becoming dirty to quickly

6. Maintenance, working information

Various fluxes, flux components as well as different dust par-
ticles 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 (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 66).
Attention!
The minimum pressure hose must be recon-
nect ed correctly and the holding latches must be turned
downwards when replacing the filter.
Dirty filter are classified as hazardous waste.
Cause
Pipe system leaking
Filter is dirty
Vacuum is too low
Thermally switched off
Filter is full
Minimum pressure hose
was not replaced after
the filter change
Pre-filter has not been
used
Solution
Reseal the pipe system
Change the filter
Increase the extraction power
(mode 1 only)
Leave the WFE 20D to cool down
Switch on again after approx. 3 hours.
Change the filter
Reconnect the hose to the filter
Use a pre-filter
Fit an F7 filter
Use a preliminary separator if the
proportion of solid matter is high.

7. Replacement parts

See Exploded Page 66 for replacement parts for standard
installations
Fine dust filter F7
Wide-band gas filter (50% AKF, 50% Puratex) without an H13
particulate air filter

8. Accessories

0058735909 Remote control
Pipe system DN40 (Page 67)

9. Shipment

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

10. Appendix

Accessories for DN40 pipe system
Subject to technical alterations and amendments!
See the updated operating instructions at
www.weller-tools.com.
English
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