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.
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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