ASTRO D2-15, Руководство пользователя

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Chapter 5
Preventive Maintenance
Maintenance
Preventive Maintenance
©Astro Packaging Rev D D2-15 Manual-19600-10-D215 5-1
WARNING:
Hot melt materials can cause severe burns resulting in dis fi gurement or blindness.
Follow these precautions before beginning any maintenance:
• Wear protective clothing, safety goggles, and safety gloves.
• Turn pump motor switch to the o ff position.
• Depressurize applicator(s) by triggering.
• Unless stated otherwise, always allow melt unit to cool before
beginning any maintenance.
• Disconnect hose electrical connector when hose fi ttings are
disconnected and power is o ff .
CAUTION:
To prevent damage to components (hose fi ttings, etc.), heat part(s) being
serviced to approximately 121 °C (250°F) prior to dismantling, assembling,
or adjusting. Heat parts by applying power to the unit using a hand held
hot air gun or placing parts on a hot plate. Failure to do this will result in
stripped threads and ruining both parts and tools.
CAUTION:
To avoid arcing of electrical contacts and possible failure of components,
do not connect electrical connectors when the hose power switch is on.
Procedure Daily Monthly As Required*
Check for foreign material in tank X
Wipe o ff excess hot melt from cover. X
Check for leaks. X
Purge tank and hose(s). X X
Inspect hose(s). Verify hose(s) properly
supported. Minimum bend radius is
20.32 cm (8 in.) when hot. X
Check temperatures. Adjust
temperatures according to Temperature
Controller manual. X
Clear applicator nozzles. X
Inspect/Replace Pump Filter X X