7.Retract the 2 screws on either side of the motor pulley.
8.Turn the mechanical assembly over and release the 3 tabs holding the loading motor PC board.
9.Lift the pc board out of the mechanical assembly and gently detach the flex cable.
10.The laser slide assembly is replaced as a whole; however, the feed motor, 3 gears, and 2 hall switches can be replaced individually.
11.Remove these parts by first taking off the cut washer and the gear that drives the slide.
12.Next, remove the middle gear.
13.The final gear is pressed onto the motor shaft, and has a ring magnet on its lower side to provide slide position information along with the hall switches. Never try to remove or replace this gear with the other 2 gears in place, because you risk breaking the ring magnet.
14.To safely remove the gear, turn it so a solid center portion is facing the outside of the assembly. Then place a very small screw- driver under the gear until the blade contacts the motor shaft and gently push down.
15.Remove the 2 screws holding the feed motor.
16.Unsolder the red and black wires and remove the feed motor.
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LASER REASSEMBLY
1.Start the laser reassembly by reinstalling the feed motor. Be sure the red wire is attached to the number 2 terminal, and the black wire to the number 1 terminal.
2.Push the feed motor gear onto the shaft of the feed motor.
3.Check the distance between the ring magnet and the hall switches with a 0.5mm feeler gauge, and adjust the height of the gear as necessary.
4.Reinstall the center gear making sure that the small gear is on top.
5.Rotate the upper and lower portions of the last gear until the alignment holes match.
6.Once the holes are aligned, position the slide against the stops near the feed motor.
7.Position the gear over the shaft and gently push it down while slightly pushing the rack gear with your thumb until the gear slides easily into place.
8.Install the cut washer to hold the gear in place.
9.Position the loading motor circuit board on the mechanical assembly and snap it back into place. Then attach the flex cable to the bottom of the assembly.
10.Turn the mechanical assembly over and make sure the tray position switch is in the cut out
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