SEF 551.10, Operating Manual, Page: 161 / 238

Page 9.13
9.0 Maintenance and service
Maintenance 551_15 \ 1
1.2014 \
Cleaning of the fans
Cleaning work at fans
WARNING
Risk of burns due to high temperatures
Some parts inside the soldering system can reach temperatures
up to 500°C during operation.
y
Conduct cleaning work only with cooled down heating
chamber.
WARNING
Risk of injuries due to electricity / rotating fans
y
For service and maintenance work you have to switch off
the oven according to the instructions and to disconnect
the mains plug.
y
Then you can open the machine hood.
In case of breakdown or rough contamination the fans can be dis-
mounted and cleaned by loosening the 4 mounting screws incl. flange
plate and connecting cable.
y
To get access to the fans of the base tray, you may have
to loosen the soldering system from the cabinet (551.19).
To do this, remove the 8 assembly screws and place the
oven to at least 20 cm thick squared timbers or lift the
oven with a suitable means of transport.
y
Clean the 4 fans in the bottom tray with a brush and a
vacuum cleaner.
y
In case of rough contamination you can dismount the fans.
Remove the 4 screws of the flange plate and also the con -
necting cable.
y
Clean and check the dismounted fan.
y
Mount the cleaned fan in reverse order again and place
the soldering system at the place of production again.
WARNING
Risk of injuries due to high weight
The soldering oven 551.1X has a weight of approx. 175 kg .
The soldering oven 551.19 without base cabinet has a weight of
about 270 kg .
y
Lift the oven with min. 4 persons or use a forklift or crane
and place the rectangular blocks of wood under the ma-
chine feet.