GCS CYSCAN, Installation And Maintenance Manual, Page: 28 / 52

26 CyScan Positioning System • Installation and Maintenance Guide r1.1
GCS GCS
To fit an Actuator:
(applies equally to the Pitch and Roll Actuators)
1 Place the actuator base in position
so the lead screw shaft (rising from
the sensor base plate) protrudes
through the actuator base. Insert
two M5 x 20 bolts into each of the
two pedestal bearings at either side
of the actuator base. Tighten the
four bolts evenly.
2 Place the actuator crosspiece into
the sensor frame so that its PCB
faces into the sensor.
3 Angle the body of the sensor so
that the lead screw shaft (rising
from the sensor base plate through
the area covered by the white
bellows) is visible and there is
sufficient space to place the actua-
tor onto the end of the shaft. The
lead screw shaft must be placed
into the underside of the large
toothed pulley of the actuator.
Once the shaft is in place, rotate
the toothed pulley clockwise (as
viewed from above) to make the
actuator move down the shaft.
IMPORTANT: As you turn the large toothed pulley,
take care not to damage the encoder disc (the thin
circular metal plate with four slots cut through it).
Throughout the winding process, it may be necessary to
slant the body of the sensor into various positions to
accommodate the actuator and lead screw shaft within
the confines of the sensor frame.
4 Continue winding the toothed pulley until the actuator has travelled down the
lead screw shaft sufficiently to allow it to be fixed to the actuator base plate that is
attached to the sensor frame. Exact positioning of the actuator along the lead
screw shaft is unnecessary as it will automatically find its own level during the
initialisation process once power is applied.
5 At either end of the actuator base plate (attached to the sensor frame) there are
two universal couplings that are used to secure the body of the actuator. Position
the upper segment of each universal coupling so that they align with the holes at
either end of the actuator body.
6 Insert the two large bolts into the
holes at either end of the actuator
body and ensure that, as you hand
turn them, they engage correctly
with the universal couplings below.
Using a 5mm A/F hex key, tighten
the two mounting bolts in a staged
and even manner.
7 Locate the appropriate ribbon cable
leading from the controller board
and attach it (in the correct orienta-
tion) to the connector on the rear of
the actuator circuit board.