CME NIKI V4, Руководство по обслуживанию, Страница: 52 / 54

NIKI V4 Operator’s Manual 52
6. Press down the "ears" of the pump assembly to disconnect.
7. Disconnect the motor sensor connector (JP1 and JP4) from the front PCB and
the motor connector JP from the main PCB.
8. Reassemble the pump head assembly in reverse order.
)
NOTE
Observe not to pinch wires and gasket between the front housing and
the pump assembly when reinstalling the pump assembly.
9. The four screws S5 – S7 must be tighten at a torque of 7kg.
10. Perform the operation checkout procedure of section 4.2.
Remove of the Pressure Sensor
1. Remove pump's door in accordance with section 4.5.
2. Remove pump's assembly in accordance with section 4.5.
3. Remove screws S8, S10, S11, Removing the pressure sensor cover.
4. Install replacement sensor and reassemble in reverse order.
5. Perform the operation checkout procedure of section 4.2.
Replacement of the Air Sensor
1. Replace the Air sensor:
Front housing sensor: a. Separate the front and rear part of the pump in
accordance with section 4.5.
b. Disconnect the Air sensor connector (JP5).
c. Press on both sides of the sensor to release
connection to the front housing.
Door Sensor: a. Open S11.
b. Disconnect the Air sensor wire from connector JP5.
c.
Pull out the sensor.
2. Install replacement sensor and reassemble in reverse order.
3. Perform the Operation Checkout procedure of Section 4.2.
Replacement of Pump Motor
1. Separate the front and rear housing in accordance with Section 4.5.
2. Remove pump's door in accordance with Section 4.5.
3. Remove pump's assembly in accordance with Section 4.5.
4. Carefully place the pump assembly in a position when the motor plugs are up.
5. Remove the connecting pin from the pulley on the motor shaft using a needle 1mm
thin.
6. Remove the pulley from the motor's shaft.
7. Remove screws S12, S13, S14 which connect the motor to the pump assembly.
8. Install a new one in reverse order.
Replacement of Press Plate
1. Remove the pump's door in accordance with Section 4.5.
2. Remove the two door shafts.
3. Remove the Press Plate.
4. Replace 3 springs to their place on the door.
5. Install the new Press Plate inserting door shafts.
6. Press the Press Plate a few times from the inside of the door to ensure smooth operation.