Buhnen HB 350 Mode D'emploi page 13

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3.7 Breaks/end of work
Turn the device off at the power switch (5) if you do not require any adhesive
for longer than 20 or 25 minutes.
The adhesive can remain in the device and be remelted later on.
3.8 Changing the nozzle
Burn hazard!
When carrying out the working steps described below, you must wear
heat-protective gloves!
There is a wide range of special nozzles available for special tasks. To
replace the nozzle, please carry out the following steps.
1. Heat the device up.
2. Separate the device from the mains by removing the mains plug.
3. Unscrew the nozzle (1).
It is imperative that you do not pull the trigger, to prevent uncontrolled
ejection of adhesive.
4. Screw the replacement nozzle on hand-tight.
The device can be put into operation again immediately.
4 Maintenance
Comply with the listed maintenance intervals to ensure continuous faultless
and safe operation:
Daily:
Figure 4/1: Draining the water separator
Check the water separator of the maintenance unit; press the
drain valve to drain, if necessary (see Figure 4/1)
Check for leak tightness, damage, the existence of all parts and
firm seating of all lines
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Maintenance