3033-006B Section 6: The Coffee System
Concordia Xpress Technical Support Manual 6-15
2900-300B
Gearbox Removal and Installation
Removing the Gearbox
1. Remove the grounds chute.
2. Remove the lower piston as described on page 8-9.
3. Navigate to TEST ROUTINES > LEFT or RIGHT DRIVE, move
the left and right pistons up as high as they will go (upper crash).
4. Remove the two lower spindle cover caps.
5. Remove the four gearbox mounting bolts underneath the
gearbox and set aside.
6. Navigate to TEST ROUTINES > LEFT or RIGHT DRIVE and
press the up arrow.
NOTE: As the motors run, the gearbox will move down and off
the ends of the spindles.
7. Once the gearbox is free of the spindles, set it down on the drain
tray.
NOTE: The right drive positional Hall-Effect sensor plate will no
longer be secured. Note the position of sensor plate for
reinstallation.
8. Go to the back of the machine and disconnect the group motor
power plugs and all Hall-Effect sensor plugs.
9. Use an AMP pin remover to disconnect the red and black wires
of either group motor from the shared group power plug.
NOTE: This will allow the connector to move past the hot water
drain line as you pull it out from the front of the machine.
10. Pull the gearbox out from the front of the machine through the
grounds chute area.
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