DeZurik PPE Series, Instruction, Page: 10 / 41

PPE, 4-20 inch Precision Electric Control Valves and Control Stations
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D11014 Page
10
August 2018
Motor Replacement
(disassembly, continued)
3
This valve operates with a powered actuator. Disconnect and lock out the electrical power to
prevent accidental operation of the actuator.
4 Disconnect the Amphenol connector from the Control Module.
5 Remove the six screws which fasten the motor cover to the motor housing, and remove the
cover.
6 Remove the screws which fasten the junction box cover to the motor housing, and remove the
cover.
7 Disconnect the wires from terminals 1, 2, 3 and 16. Feed these wires into the motor area
through the grommet in the back of the junction box.
8 Remove the safety interlock switch from the motor housing.
9 Remove the six screws which fasten the motor housing to the valve adaptor, and remove the
motor housing complete with the conduit and Amphenol connector.
10 Remove the screws which fasten the motor plate to the adaptor.
11 Remove the motor plate and motor by turning the motor shaft clockwise until the motor plate
has rotated about 10 degrees. Thread two of the motor plate screws, removed in step 9, back
in to the reverse side of the adaptor. These screws must be spaced on opposing sides so that
when tightened, they will push the motor plate off. The circular spline and wave generator of
the Harmonic Drive will come off with the motor plate.
NOTE : On some 14 and 16 inch valves the circular spline is attached to the adaptor rather
than the motor plate. If your valve is of this type, it is necessary to remove the circular
spline from the adaptor.
12 Remove the wave generator retaining ring, rub washers, shims, wave generator and insert from
the hub. Push out the retaining pin and remove the hub from the motor shaft.
13 Note the location of the wires connected to the capacitor, then disconnect them so the motor
can be removed.
14 Remove the screws which fasten the motor to the motor plate, and remove the motor.
15 Remove the pin which fastens the slip clutch to the motor shaft at the top side of the old motor,
and remove the slip clutch.