Arjohuntleigh FLOWTRON UNIVERSAL Service Manual page 61

Flowtron Universal Service Manual
19.24.2 Press the two parts firmly together, so that the pin on the drive shaft engages in the slot
in the drive dog. The stepper motor mounting bracket should then rest on top of the
three support pillars on the module and stator sub-assembly.
Note: If necessary, turn the spring mount and pinned rotor assembly forward and back
a small amount to make sure the pin engages in the slot.
19.24.3 Using a Torx T8 screwdriver, install the three screws to secure the stepper motor
mounting bracket to the module and stator sub-assembly (refer to Figure 44).
19.25 Install the motor and manifold assembly into the pump (Refer to Page 20, Section 19.8). To
install the new longer transducer tube (Table 15, Item 30), use the following procedure (refer to
Figure 47):
19.25.1 Push one end of the transducer tube fully onto the transducer outlet on the motor and
manifold assembly.
Note: The transducer outlet on the new module and stator sub-assembly is in a
different position.
19.25.2 Push the other end of the transducer tube onto the top outlet of the transducer on the
control PCB assembly.
CAUTION: Do not handle the transducer on the control PCB assembly
unnecessarily. The transducer is a sensitive device. To avoid damage,
put your finger at the back of the transducer while you carefully push
the tube onto the top outlet at the front of the transducer.
Note: Make sure the transducer tube is not kinked.
Stepper Motor
Mounting Bracket
View of Underside of Stepper
Motor and Mounting Bracket
Figure 46 - Aligning the Stepper Motor Drive Shaft and Pinned Rotor Assembly
Issue 2
Sep 2009
Pin in Drive Shaft
SER0009
Spring Mount and
Pinned Rotor Assembly
View of Top of Module
and Stator Sub-Assembly
Pump Repair
Slot in Drive Dog
Chap 5
Page 23