P r i m a L u c e L a b S p A
A R C O u s e r m a n u a l
Installing ARCO on focusers with SESTO SENSO 2 focusing motor
If you want to install ARCO rotator on a focuser with SESTO SENSO 2 focusing motor, first of all you will have to
add one of the many available optional adapters based on connector you have on your focuser’s draw tube: you
may choose between a nose or an adapter for different threads. In any case, first of all please connect the optional
adapter to the ARCO body by tightening the 3 grub screws (that are inserted in the ARCO body) to locking it to the
adapter. Then connect the ARCO to your focuser (this will vary based on your focuser specifications).
Now you can connect the cable from the ARCO port of the SESTO SENSO 2 to the port below the ARCO body.
Take great care when connecting the cable to the ARCO port of the SESTO SENSO 2 and the port below the
ARCO. Take a look at position of internal pins in the connector and rotate the cable connector until it cor-
responds to the port on SESTO SENSO 2 or ARCO. Then connect the cable with a gently press. If it doesn’t
fit, please do not press too much the connector otherwise the internal pins may break.
p a g e 6
NOTE
Do not over tighten the
grub screws otherwise
you may ruin the thread or
the inner adapter.
NOTE
Since ARCO may be not
really close to the SESTO
SENSO 2 focusing motor,
we suggest the use of the
700mm length cable.
