Servicing/Maintenance; Service Intervals; Cleaning; Cleaning The Nozzle - Buhnen Hb 720 R Originalbetriebsanleitung

GB
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Servicing/Maintenance

Danger!
Voltage hazard.
All operations which necessitate opening the device may be performed only by quali ed
electricians.
Burn hazard!
Nozzle and molten adhesive can be over 200 °C hot. Wear heat-resistant gloves when
performing servicing and maintenance operations.
6.1

Service intervals

Observe the stated service intervals to ensure always correct and reliable operation:
Daily:
Weekly:
6.2

Cleaning

• Do not use aggressive cleaning agents for cleaning the device. These may damage
device components.
We recommend cleaning with petroleum.
• Replace completely parts which are no longer cleanable (e.g. because of burnt-on or
reacted hot-melt adhesive). We recommend having this work done by the manufacturer
or distributor.
• Remove residues of hot-melt adhesive and other contaminants by mechanical means
only, e.g. with a cloth, soft brush, wooden spatula or similar.
6.2.1

Cleaning the nozzle

• Wipe the nozzle with a cloth to remove slight external dirt.
• To remove blockages insert a drill bit, needle or wire of suitable diameter into
the nozzle orifice.
In stubborn cases replace the nozzle (see Section 6.3).
H2200XM_DE-EN_200720.indd 27
Check that all parts are present, leak-free and undamaged and all screws and lines
securely seated
Check the cover gasket and the O-ring on the lower punch for damage or wear.
Remove adhesive residues and other contaminants, especially on the inside of the cover.
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Servicing/Maintenance
26.07.21 08:55