zortrax M200 User manual

Extruder Fans Replacement
SOURCE:
https://support.zortrax.com/extruder-fans-replacement/
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Table Of Content
Unloading the Material 5
Unplugging the Power Cable 6
Material Guide Removal 7
Unplugging the Extruder Cable 8
Hotend Removal 9
Heater and Thermocouple Removal (from the Hotend) 10
Unplugging all Cables from the Extruder PCB 11
Unscrewing the Extruder PCB 12
Extruder Lower Printed Cover Removal 13
Heater and Thermocouple Removal (from the Extruder) 14
Extruder Upper Fan Replacement 15
Extruder Upper Fan Cable Removal 15
Unscrewing the Extruder Upper Fan 15
Extruder Upper Fan Removal 15
Extruder Upper Fan Assembly, part 1 15
Securing the Extruder Upper Fan 15
Extruder Upper Fan Assembly, part 2 15
Extruder Lower Fan Replacement 20
Extruder Lower Fan Cable Removal 20
Unscrewing the Extruder Lower Fan 20
Extruder Lower Fan Removal 20
Unscrewing the Extruder Lower Fan Shroud 20
Securing the Extruder Lower Fan Shroud 20
Extruder Lower Fan Assembly, part 1 20
Securing the Extruder Lower Fan 20
Extruder Lower Fan Assembly, part 2 20
Heater and Thermocouple Assembly (in the Extruder) 26
Extruder Lower Printed Cover Assembly 27
Extruder PCB Assembly 28
Plugging all Cables into the Extruder PCB 29
Heater and the Thermocouple Assembly (in the Hotend) 30
Hotend Assembly 32
Plugging the Extruder Cable 33
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Material Guide Installation 34
Plugging the Power Cable 35
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The extruder is equipped with two fans – upper and lower. The main role of the
extruder upper fan is to cool down the extruder, whereas the extruder lower fan
cools down each layer of the print. Therefore, if your model warps, melts, or you
can notice burn marks on its surface, you should check the extruder fans for
proper operation. The following manual presents how to replace both extruder
fans.
The following manual shows the M200 repair work. For the M300, these procedures are
the same.
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Unloading the Material
From the menu choose “Material” and then “Unload the material” option. The extruder
should start to heat up automatically. Once the extruder is hot, the motor will start to
unload the material.
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Unplugging the Power Cable
Turn off the printer and unplug the power cable. Wait about 15 minutes and let the
machine cool down.
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Material Guide Removal
Detach the material guide from the extruder cover. Next, separate the guide from the
extruder cable.
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Unplugging the Extruder Cable
Detach the extruder upper printed cover and unplug the extruder cable.
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Hotend Removal
With a 1.5mm Allen key loosen the two screws that secure the hotend and remove the
hotend from the extruder.
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Heater and Thermocouple Removal (from the
Hotend)
With a 1.5mm Allen key loosen the two screws that secure the heater and thermocouple
in the hotend. Then remove the heater and thermocouple.
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Unplugging all Cables from the Extruder PCB
Unplug all the cables from the extruder PCB.
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Unscrewing the Extruder PCB
Unscrew the two screws that secure the extruder PCB using a 2mm Allen key. Remove
the PCB from the extruder.
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Extruder Lower Printed Cover Removal
Remove the extruder lower printed cover.
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Heater and Thermocouple Removal (from the
Extruder)
Remove the heater and thermocouple from the extruder block and from the heat shrink
tubing. Unplug the cables from the extruder PCB.
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Extruder Upper Fan Replacement
The following steps present the extruder upper fan replacement (Fan 1). It is placed on
the heat sink next to the extruder alumium block. The fan grid is placed on the extruder
upper fan.
EXTRUDER UPPER FAN CABLE REMOVAL
Remove the extruder upper fan cable (with the red connector) from the heat shrink
tubing.
UNSCREWING THE EXTRUDER UPPER FAN
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Unscrew the four screws that secure the extruder upper fan and remove them.
EXTRUDER UPPER FAN REMOVAL
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Remove the extruder upper fan grid and then remove the fan.
EXTRUDER UPPER FAN ASSEMBLY, PART 1
Place the extruder upper fan on the heat sink next to the extruder alumium block. Next,
place the grid on the fan.
SECURING THE EXTRUDER UPPER FAN
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Secure the extruder upper fan with the four screws.
EXTRUDER UPPER FAN ASSEMBLY, PART 2
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Put the extruder upper fan cable through the heat shrink tubing.
Carefully put the cable in the gap in the extruder aluminum block. Be careful not to
damage the cable.
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Extruder Lower Fan Replacement
The following steps present the extruder lower fan replacement (Fan 2). It is placed
under the heat sink next to the extruder alumium block. The fan shroud is secured to the
extruder lower fan.
EXTRUDER LOWER FAN CABLE REMOVAL
Remove the extruder lower fan cable (with the blue connector) from the heat shrink
tubing.
UNSCREWING THE EXTRUDER LOWER FAN
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