CME NIKI V4 Service Manual page 53

7. Install the pump's door in accordance to Section 4.5.
8. Perform the operation checkout procedure of Section 4.2.
Replacement of Battery
1. Turn of the device and separate rear from the front part in accordance with Section 4.5.
2. Remove S25 battery pack holder.
3. Remove the battery from its compartment disconnect JP.
4. Compare Battery pack with figure 5.
5. Install replacement battery pack and reassemble in a reverse order.
Be careful with the polarity of the wires. Red wires (+) must be connected to
Caution:
the red marked (+) battery terminal. The wires must be routed in the battery
compartment so that they run alongside the battery strap closet of the battery
terminal and pinch wires between the compartment and the cover.
Perform the operation checkout procedure of section 4.2.
Replacement of PCB board
1. Separate front and rear housing in accordance with Section 4.5.
2. Remove the PCB holding screws (S22, S23).
3. Disconnect JP1 front and rear housing connector, motor sensor, JP2 motor JP5.
4. Install a new PCB by performing this procedure in reverse order
5. Perform the operation checkout procedure of Section 4.2.
Replacement of PCB Transformer
1. Separate front and rear housing in accordance with Section 4.5.
2. Remove connecting screws of rear PCB S31, S32.
3. Replace the new PCB in a reverse order.
4. Perform the operation checkout procedure of Section 4.2.
NIKI V4 Operator's Manual 53