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Operation
Ⅳ.
1. Put the extruder on the shelf and install the handle, connect the power supply.
2. Turn on the hot air gun power switch, then adjust the temperature control knob,
and set the temperature to the required figure(during preheating you can adjust to the
highest temperature, when formal operation can adjust to the appropriate
temperature). Preheating the extruder for about 3-5 minutes, until the residue on the
welding nozzle outlet get softened, using tools to pick the softened residue out of the
welding nozzle. The length of preheating time needs to be judged according to the
scene. The residue of the outlet of the welding nozzle has not yet softened, which
means that the preheating time is not enough. If the residue become thinning, it
means that the preheating time is too long. The proper preheating time is very
necessary: if the preheating time is insufficient and the forced starting of the extruding
welding gun will cause the motor overload, it will destroy the motor rotor seriously. If
the preheating time is too long, the heat of the outlet will fall back, which will cause
the motor overheated and stopped. The welding rod will be melted before it enters
the extrusion chamber, and the blade cannot be fed.
3. Use right hand to pull the motor switch, and the motor starts to work. If a new
machine has a slight noise, it may be related to the resonance of the machine with
the shelf or the tightness of the parts inside the machine, which does not affect the
normal operation of the machine. If the motor works smoothly and the internal sound
of the feed is disappearing, it is normal. But if the motor works not smoothly, the jitter
is intense, and the noise is aggravated, it indicates that the preheating time is not
enough and the residue inside the gun is not melted out. It is necessary to extend the
preheating time.
4. When the motor is determined to start, it is best to standby for 2-3 minutes. After
that, it can be inserted into the welding rod. According to the plasticizing of the
extruded material, the temperature control knob should be carefully adjusted till the
welding rod in the screw is softened completely.
5. Before put welding rod into the extrusion cavity the rotation rates of motor is lively.
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