Wolf COB Series Maintenance Instructions Manual page 8

Setting gauge (standard delivery COB from 01/2010)
Check 1 COB-29/40
3,5
2,6
Check 1
COB-20 Check 3
Setting gauge (standard delivery COB up to 12/2009)
Check 1 COB-29
Check 1 COB-20
Check 3
Carry out the following checks with the maintenance tool:
16. Check 1: mixer head inserted up to the end-stop?
Check distance between nozzle and mixer head using
the setting gauge (COB15 : 2.0 mm, COB20 : 2.6 mm,
COB29/40 : 3.5 mm).
17. Check 2: position of the ignition electrodes OK?
The electrode tips must point towards upper hole 1 of
the setting gauge.
18. Check 3: spacing of ignition electrodes OK?
The electrode spacing must be 3 mm.
Replace ignition electrode if necessary.
8
4. Maintenance procedure
Check 2
2,0
Check 1 COB-15
Check 2
To clean the heat
exchanger fins
Siphon
19. Before cleaning the heat exchanger, remove the siphon.
A collecting vessel can then be placed under the now
open condensate drain connection (siphon connection).
Wing
screws
20. Undo the wing screws on the combustion
chamber lid.
21. Lift off the combustion chamber lid and place
to one side.
Maintenance tool
22. Hook the maintenance tool into the combustion chamber
and pull out the chamber.
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