Maintenance Position - Riello Gulliver BGK3 Installation, Use And Maintenance Instructions

9.3

Maintenance position

Accessibility to the nozzle, the diffuser disc and the electrodes is
made easy in 2 ways, see Fig. 21 and Fig. 23:
 Pull the wires 2) (Fig. 21) from the control box and the pho-
toresistance 8) and undo the nut 9) from the pump.
 Loosen the screws 10) and extract the nozzle holder 1) by
turning it towards the right.
 Remove the wires 2) from the electrodes, loosen the screw
4) (Fig. 17) and extract the diffuser disc support assembly
from 3) the nozzle holder assembly 1).

Screw up the nozzle 6) holding the nozzle holder with the
aid of a wrench.
 Refit following the above procedure in the reverse order.
In the event of maintenance made to the diffuser
disc-holder assembly, screw the nut 9), as shown
in Fig. 22.
WARNING
2
8
9 2
20013962
Maintenance
1
10
3
6
Fig. 21
Tighten without
moving backwards
to the end
 Unscrew and remove the screw fastening it to the flange to
take the burner off the boiler.
 Hook the burner onto flange 7) (Fig. 23), loosen screws 5)
and pull off the blast tube assembly 4).
 Loosen screw 4) (Fig. 17) to remove the diffuser disc sup-
port assembly 3) from nozzle-holder assembly 1).
 Unscrew fastening screw 4) (Fig. 17) all the way so that you
can pull optical fibre 8) out from the diffuser disc support
assembly.
 Pull the wires 2) out from the electrodes.
 Replace nozzle 6) and screw the new one on properly, hol-
ding it as illustrated in Fig. 23.
 Refit following the above procedure in the reverse order.
3
S7948
2
1
E9286
22 GB
9
Fig. 22
4
5
8
6 7
Fig. 23
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