Nexus 21 3, S, PF-0 Dockside testing, Installation, Pumpset oil filling, Connec- tion

INSTALLATION

2.3 Pumpset oil filling

If the Pumpset is used together with the Nexus Linear Drive, fill the Linear Drive first and then connect the Linear Drive to the Pumpset before filling the Pumpset. See the Linear Drive oil filling procedure in separate manual.

Use hydraulic oil viscosity grade ISO 20. About 110 ml is needed for the Pumpset only without piping. Fill the Pumpset via the reservoir.

Once the boats main steering system has been filled, open the Pumpset bleed screw (on top of the Pumpset), two complete turns. Wait until clear oil void of any air exits from the bleed screw, then resecure the bleed screw. Then fill up the uppermost helm Pumpset or reservoir of the main steering system, if necessary.

Pumpset PF-0,3S with solenoid and reservoir Pumpset PF-0,3

2.4 Connec- tion

Note! For correct wire dimensions see Nexus Autopilot manual ”Wire Thick- ness”.

Connect the Pumpset wires to the Nexus Servo Unit as follows:

∙Orange wire to Servo Unit terminal marked "MOTOR 1".

∙Black wire to Servo Unit terminal marked "MOTOR 2".

For Pumpset PF-0,3S with solenoid, connect also the two red wires as follows:

∙One solenoid red wire to terminal marked 16 ”+”.

∙One solenoid red wire to terminal marked 17 "GND".

It does not matter which wire red wire goes to which terminal.

3 Dockside testing

When the complete electrical installation is checked and the power is turned on, there are further procedures to be carried out in order to completely remove any air in the system. See 12 "Dockside Testing" of the Nexus Autopilot manual.