Index Motor Alignment Procedure; Index Motor Assembly Removal; Index Motor Assembly Replacement - Bunn My Cafe AP Technical Training Manual

Index Motor Alignment Procedure

An alignment tool kit will be needed for the following symptoms:
a) Replacing a failed index motor
b) Door is partially open during brew
c) Water is leaking around sprayhead seal during brew

Index Motor Assembly Removal

Step 1: Press Open/Close button to open the pod door. If you cannot operate the motor assembly, then manually
move the pod holder assembly out to the load position.
Step 2: Unplug Brewer.
Step 3: Remove top cover.
Step 4: Disconnect the motor and sensor harness to the new motor assembly.
Step 5: Loosen the top Allen screw. (farthest from the motor, Fig. 1-1)
Step 6: Remove the plastic plug from the ejector floor.
Step 7: Insert the Allen wrench through the hole and loosen bottom Allen screw. (farthest from motor, Fig. 1-2)
Step 8: Remove 2 nuts from the motor mounting bracket. (Fig. 1-3)
Step 9: Remove the motor assembly. (Fig. 1-4)
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Index Motor Assembly Replacement

Step 1: Connect the motor and sensor harness to the new motor assembly.
Step 2: Connect the brewer to a power source. Press Open/Close button to open the pod door.
Step 3: Unplug the brewer.
Step 4: Verify the motor assembly is in the Open/Load position. (Fig. 2-1)
Step 5: Install the motor assembly and ensure the mounting nuts are snug.
Step 6: Verify that the door assembly is open. Tighten the Allen screws with 3-32 Allen wrench. Move drawer back
and forth to find center of flats on shaft when tightening Allen screws.
Note: Do not tighten Allen screws until the motor bracket is secure against the ejector wall.
Step 7: Install "puck" into pod holder. (Fig. 2-2)
Step 8: Remove thumbscrew and sprayhead. If necessary, use an alignment tool to push the sprayhead out.
Note: It will be easier to get your hand inside if you use the "Test Index Motor" to move pod holder all the way to the
back position. After sprayhead is removed, return pod holder to the load position.
Step 9: Connect the brewer to a power source. Press Open/Close button to close the pod door.
Step 10: Slightly loosen the 2 nuts securing the motor mounting bracket to ejector wall. (Fig. 2-3)
Step 11: Insert alignment tool (Fig. 2-4). Rotate the motor assembly (Fig. 2-5) with an adjustable wrench until
alignment tool slips into puck, then tighten the nuts.
Note: Alignment tools should drop into alignment puck with little to no force. If force is required, repeat step 11.
Step 12: Remove tools. Cycle door Open/Close a few times and test for proper operation. If any error codes are
displayed, repeat the alignment procedure.
Step 13: Install the sprayhead and thumbscrew.
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