of 5044
5. Replacement of Pump Motor
1. Separate front and rear housings of the pump.
2. Remove the pump door as described above.
3. Remove pump assembly as described above.
4. Carefully place the pump assembly at a position in which the pumping
fingers are facing upwards.
5. Apply a piece of insulation tape across the fingers to prevent them
from falling out [if they do fall out, refer to diagram: “Position of
Pumping Fingers in Pumping Block” for proper finger placement.]
6. Carefully place the pump assembly at a position in which the gear
wheels are facing up.
7. Remove the nut, securing the single slotted encoder disc and remove
the encoder.
8. Remove the retainer ring from the end of the motor and remove the
encoder and motor gear.
9. Remove the 2 screws that hold the motor to the housing and remove
motor.
10. Install a new motor. Refit the 2 screws using thread locking glue.
11. Reassemble in reverse order.
12. Perform Operational Checklist and Performance Acceptance Test.
5.1 Replacement of PC Boards – motor and main
1. Separate front and rear housings of the pump.
2. Remove the pump door as described above.
3. Remove pump assembly as described above.
4. Carefully place the pump assembly at a position in which the pumping
fingers are facing upwards. Apply a piece of insulation tape across the
fingers to stop them falling out (if they do fall out, refer to diagram:
“Position of Pumping Fingers in Pumping Block” for proper finger
placement).
5. Remove the 3 screws that are holding the motor PCB.
6. Remove the screw holding the main PCB to the front housing.
7. Remove PCBs.
8. Install a new motor PCB or a new main PCB.
9. Reassemble in reverse order.
10. Perform Operational Checklist and Performance Acceptance Test.
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