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Today I'll introduce a maintenance tool

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Straight-air SMD(surface-mounted device) rework station

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It's also well known as hot air gun

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There are two types of hot air guns

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One is rotary-air hot gun

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The other is straight-air hot gun

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Now what we see is a straight-air hot gun

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The difference between the straight one and the rotary one is the structure of the nozzle

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I'll talk about it in the following video

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Next, let's learn how to use this hot air gun

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First

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We need to understand the panel when we use it

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There are two knobs on the panel

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a power switch and a temperature display screen

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Rotate the temperature knob

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the numbers on the screen will change

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Rotate clockwise to increase temperature

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Rotate counterclockwise to lower the temperature

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To solder different components

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we need different temperatures

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On the left is the air volume knob

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When adjusting the air volume knob

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the screen does not change

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So we have to refer to the scale printed on the panel

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The specific temperature and air volume to be adjusted will be introduced in detail in our later welding courses

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After adjusting the temperature and air volume

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we can start the operation

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Lift the heat handle from the holder

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The temperature starts to heat up after picking up the handle

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When it reaches the temperature we set

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the temperature will be constant

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Now you can weld

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After welding

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put the handle back onto the holder

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Temperature starts to drop

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After dropping to 100 degrees

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the hot air gun is in standby

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Turn off the fan and heating circuit

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When using the hot air gun, we do not need to repeatedly switch the power of it

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You can turn off the power when not using it for a long time

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The hot air gun is equipped with different nozzles

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Normally,manufacturers will be equipped with 3 to 4 nozzles

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This hot air gun comes with three nozzles

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one is 1 cm

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one is 6 mm

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and the other is 2 mm

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The nozzle we are fitting to the handle is 6mm

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We also call it the medium nozzle

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Normally,this nozzle can solder most of the components on the circuit board

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Occasionally, when you need to solder some particularly large components

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you can replace the 1 cm nozzle

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How to replace the nozzle

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Loosen the fixed screw with a screwdriver

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After twisting it loose

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pull out the nozzle

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Choose the right nozzle to cover

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Tighten the screw at the duct

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This is everything for this hot air gun.Thank you for watching.