Ultimaker 2 PLUS Repair Manual page 5

Reassembly
6. Secure the hot end parts
•
Place the hot end holder top on the cooling rib.
•
Secure with the two M3x10 bolts..
9. Attach the print head housing to the hot end
•
Align the housing parts with the hot end.
•
Insert the four thumb screws, but only very loosely secure them.
•
Remove the tape from the print head housing parts.
Tip: Make sure that all cables run neatly side by side and the fan wires
are not behind the back two thumb screws.
For internal use only
7. Attach the heater block to the hot end
•
Insert the M3x16 countersunk bolt through the hole in the hot end
holder bottom and align the thread of the heater block with the hot
end isolator.
•
Use a 2.0 hex screwdriver to turn the hot end isolator clockwise.
Tighten it until the bottom of the hot end isolator hits the top of the
heater block.
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8. Attach the fan bracket to the hot end
•
Align the fan bracket with the hot end.
•
Secure the fan bracket to the hot end with the four M3x4 bolts. Use
the torque screwdriver to tighten the bolts to 0.5 Nm.
Tip: To ensure that the nozzle is precisely in the middle of the hole
in the fan bracket, place the nozzle alignment tool around the nozzle
before tightening the bolts of the fan bracket.
Caution: If the nozzle does touch the sides of the hole in the fan
bracket, the heat will spread throughout the complete bracket.
This will make it harder for the Ultimaker 2+ to maintain its
temperature during printing, which can lead to quality issues or
error messages.