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4.
Remove the screws (153) that attach the two cable clamps (149) to the left
endplate. Slip the clamps off the cable.
5.
Remove the two screws (145) that attach the margin sensor (150) to the left
endplate (144). Pull the cable and connector through the sensor opening in the
endplate.
6.
To install the new margin sensor, reverse steps 1 through 5 above. Do not over-
tighten sensor mounting hardware as it is possible to crack the sensor housing.
It is important that the sensor cable be properly routed along the outside of the left
endplate. This is to avoid interference with the spring idler assembly and with packaging
and cover hardware.
4.5.22: Carriage Drive Motor Removal and Replacement - Figure 4.11
1.
Remove top cover (see Paragraph 4.5.1).
2.
Remove the carriage drive cables.
3.
Remove screws (107) securing cable clamps (109) to right endplate.
4.
Remove four screws (63) securing the electronic chassis and pull the electronic
chassis out far enough to access the motor connector (27). Disconnect the motor
connector (27) from the controller board (21).
5.
Remove the two screws (105) which attach the carriage motor (123) to the
endplates (82). The motor (123) may now be removed. Be sure to save the motor
isolation pad (114) for reuse.
6.
Remove the carriage drive spool (119) from the old motor shaft and install on the
new motor shaft. Be sure that the set screw tightens down squarely on the flatted
portion of the motor shaft. This is extremely important!
The rear edge of the drive spool should be spaced away from the motor bracket by a
distance of 1/16 inch (1.59mm). The set screw must be tightened securely.
7.
Replace in reverse order.
4-23
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