Service manual
106
5.1.3.3. Changing the dispensing pump motor
a) Remove the dispensing pump by rst of all unscrewing the nuts (1) and then the bolts (2) from the base.
b) Remove the motor by removing the screws (3).
c) Unscrew the body (4).
d) Loosen the Allen bolt and remove the endless screw and the axial bearing (5).
e) Fit the axial bearing and the endless screw on the new motor. The Allen bolt must coincide with the machined
surface of the motor axle. Put screwfastener on the bolt. It is very important to remove the axial space between
the motor, the bearing and the endless screw. To avoid the displacement of the motor axle, use the MO0009 tool.
Tighten the Allen bolt.
g) Clean off the used grease. Put new grease on the endless screw and on the piston support.
h) Clean the piston if it has been stained with lubricant grease.
i) Fit the motor with the endless screw and the piston support on the body of the pump, making the support guide
coincide with the lock nut (6).
j) Fit the pump to the base. The bolts (2) should not apply pressure to the body (4). Tighten the nuts (2).
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