B.
Protection against non electrical hazards
1. The equipment is designed to be operated on a flat, level surface to
ensure machine stability. In the case of chain operated machines, the
equipment should be securely screwed or clamped to the workbench
using the flanges provided, to avoid dislodging the machine when the
pedal is depressed.
2. Heat sealing machines must not be used for packing flammable or
explosive materials unless specifically modified to do so.
3. When sealing PVC and some other plastic films, which may produce
potentially harmful fumes, adequate airflow ventilation or extraction
may be required.
4. The heating element and jaws can become hot during sealing and
adequate cooling time must be allowed before touching these parts of
the machine.
5. Care should be taken on machines fitted with cutting knives that the
blade is moved to a safe position before attempting to reach between
the jaws. On hand operated machines, which are pivoted at one end of
the pressure bar the knife will slide towards the pivot point when the
pressure bar is lifted. For safety ensure that the blade is positioned at
the pivot end before lifting the pressure bar.
6. The heating cycle on impulse sealers is controlled by a timer allowing a
maximum heating time of 4 seconds. If the timer indicator light does
not go out at the selected time and heating continues, switch off the
power immediately and investigate the fault after removal or
disconnection of the element.
7. Repeated operation of the machine without sufficient cooling time
between cycles can cause accumulative heat build up in the element
resulting in poor seals, damaged elements and excessive temperatures
8. Ensure that hands and fingers are clear of the pressure bar before
actuating the foot pedal. The element will not operate until the
pressure bar is fully closed but some discomfort will result from the
pressure applied manually or by solenoid operated units.
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