SEF 551.10, Operating Manual

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Page 9.33
9.0 Maintenance and service
Maintenance 551_15 \ 1
1.2014 \
Exchange heating elements of the upper heating modules
You will find the electrical connection of the modules at the rear side of
the heating chamber.
y
Pull the connector angle out of the plug connector. Thereto
lean above the heating chamber and look behind the mod-
ule (possibly use a step).
CAUTION
Crushing hazard
y
When working with opened hood make sure that the hood
rest is snapped and so the hood is protected against unin-
tended lowering.
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 service and maintenance work only with cooled
down oven.
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 the soldering oven series 551 are used as heating elements finned
tubular heaters with 1000W as well as 1500W heating power. In the
upper heating modules the heaters are fixed in pairs on a coil plate
with 2 coil cover plates. In the lower heating zones the heaters are
used single. Spare parts will be supplied pre-assembled.
For the exchange of a heating element in a upper heating module this
module must be dismounted.
Dismount heating
module