**Replace the extruder assembly**

**operating steps**

Turn off the machine (graph 123)
{{ :starry:123.png?nolink&600 |}}
                                                      graph 123
Disconnect line interface (graph 124)
{{ :starry:124.png?nolink&600 |}}
                                                      graph 124
Remove extruder housing fixing screw (Fig. 125,126,127,128)
{{ :starry:125.png?nolink&600 |}}
                                                      graph 125
{{ :starry:126.png?nolink&600 |}}
                                                      graph 126
{{ :starry:127.png?nolink&600 |}}
                                                      graph 127
{{ :starry:128.png?nolink&600 |}}
                                                      graph 128
Remove the extruder housing (graph 129)
{{ :starry:129.png?nolink&600 |}}
                                                      graph 129
Disconnect all line interfaces on the transfer board (graph 130)
{{ :starry:130.png?nolink&600 |}}
                                                      graph 130
Remove screws (Fig. 131,132,133)
{{ :starry:131.png?nolink&600 |}}
                                                      graph 131
{{ :starry:132.png?nolink&600 |}}
                                                      graph 132
{{ :starry:133.png?nolink&600 |}}
                                                      graph 133
Remove the extruder module (graph 134)
{{ :starry:134.png?nolink&600 |}}
                                                      graph 134
Remove the extruder module fixing screws (graph 135,136,137)
{{ :starry:135.png?nolink&600 |}}
                                                      graph 135
{{ :starry:136.png?nolink&600 |}}
                                                      graph 136
{{ :starry:137.png?nolink&600 |}}
                                                      graph 137
Tear off the tape (graph 138)
{{ :starry:138.png?nolink&600 |}}
                                                      graph 138
Remove 2 fixing screws at the upper left and lower right of the fan (graph 139,140)
{{ :starry:139.png?nolink&600 |}}
                                                      graph 139
{{ :starry:1401.png?nolink&600 |}}
                                                      graph 140
Remove the extruder module (graph 141)
{{ :starry:141.png?nolink&600 |}}
                                                      graph 141
Remove the nozzle fixing screw (graph 142)
{{ :starry:142.png?nolink&600 |}}
                                                      graph 142
Replace the new extruder module (graph 143)
{{ :starry:143.png?nolink&600 |}}
                                                      graph 143
Install the nozzle (graph 144)
{{ :starry:144.png?nolink&600 |}}
                                                      graph 144
Install fan (graph 145,146)
{{ :starry:145.png?nolink&600 |}}
                                                      graph 145
{{ :starry:146.png?nolink&600 |}}
                                                      graph 146
Paste adhesive tape (graph 147)
{{ :starry:147.png?nolink&600 |}}
                                                      graph 147
Install the extruder fixing screws (Fig. 148,149,150)
{{ :starry:148.png?nolink&600 |}}
                                                      graph 148
{{ :starry:149.png?nolink&600 |}}
graph 149
{{ :starry:150.png?nolink&600 |}}
                                                      graph 150
Install the screws (Fig. 151,152,153)
{{ :starry:151.png?nolink&600 |}}
                                                      graph 151
{{ :starry:152.png?nolink&600 |}}
                                                      graph 152
{{ :starry:153.png?nolink&600 |}}
                                                      graph 153
According to the name of the socket on the transfer pad, link all lines on the nozzle transfer pad (graph 154)
{{ :starry:154.png?nolink&600 |}}
                                                      graph 154
Installing the extruder housing (graph 155)
{{ :starry:155.png?nolink&600 |}}
                                                      graph 155
Install extruder housing screws (graph 156,157,158,159)
{{ :starry:156.png?nolink&600 |}}
                                                      graph 156
{{ :starry:157.png?nolink&600 |}}
                                                      graph 157
{{ :starry:158.png?nolink&600 |}}
                                                      graph 158
{{ :starry:159.png?nolink&600 |}}
                                                      graph 159
Connect wiring (graph 160) and readjust Z bias (graph 160-1)
{{ :starry:160.png?nolink&600 |}}
                                                      graph 160
{{ :starry:160-1.png?nolink&600 |}}
                                                      graph 160-1