44
VALVE SERVICE
Rev E
To install control module:
1. Be sure the power is disconnected.
2. Check model.
3. Check routing of wires and plug them into the controller. Connectors will
snap in place. Be sure that wires are properly managed through the clips
on top plate. This will prevent the wires from being caught in the
camshaft.
4. Place bottom of module in position. The bottom will fit into a clip.
5. Pivot the top into position and snap in place. The controller should be
secure.
If you are ready to program the controller, then power can be applied by
plugging in transformer.
Drive Motor
The drive motor is open loop and receives commands from the control
module. The motor has a pinion gear that meshes with the camshaft gear to
drive (rotate) the camshaft.
During operation, rotation forces the motor into its mounting position and
screws or bolts are not needed.
To remove motor:
1. Disconnect power to the unit.
2. Remove cover.
3. Pull off wiring connector.
4. Grasp the motor body and rotate counterclockwise.
5. Pull motor out.
To install motor:
1. Insert gear through hole on top plate and mesh with camshaft. Cam may
need to be rotated slightly.
2. With motor ears flat to the rear of the top plate, rotate clockwise until
mounting tabs are engaged in slots.
3. Reconnect wires.
Wire Clips
Slots for Motor
and Turbine Harness
NOTE:
Some units will have a shipping peg in the top motor mount. The
peg can be removed and discarded. This peg is not required for motor
operation.
Mounting
Tabs
Slots
NOTE:
It is not necessary to pre-position the camshaft or the motor. When
the controller is powered up the camshaft will be rotated to the "home"
position.
