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3.MAIN UNIT REPLACEMENT
EO18-33016A
3.4 Stepping Motor and Top Cover Open Sensor (Left)
3-10
12. Release the bunch of ground wires from the Cable Clamp.
13. Remove the screw to release the Ground Wire (red).
14. Remove the two PT-4x12 screws and one SMW-4x8 screw to detach the Stepping Motor Unit.
NOTE: The SMW-4x8 screw secures the ground wire (green) together.
15. Remove the two screws to separate the Stepping motor from the belt.
16. Replace the Stepping Motor with a new one, and then reassemble in the reverse order of removal.
<Adjustment of Timing Belt>
1) Put the Timing Belt onto the Stepping Motor Pulley, and temporarily secure the Stepping Motor with the
two screws.
2) Pushing the Stepping Motor at the portion indicated in the picture below by a tension gauge with 3-kg
force, tighten the screws.
3) When the center of the belt is pushed by a tension gauge with 100-g force, it should sag for 1 mm.
2) 3)
Ground Wire (Red)
Ground Wire (Green)
SMW-3x6 Screw
SMW-4x8 Screw
Stepping Motor
Timing Belt
Timing Belt
Stepping
Motor
SMW-4x10 Screw
Screw
PT-4x12 Screw
Bunch of Ground Wires
Cable Clamp