Simrad H1000 manual Rudder reference unit

description/installation h1000 pilot

rudder reference unit

Measure the voltage difference between the green and blue wires of the rru; there should be a minimum of 1V d.c. change from hardover to hardover.

Note: If there is less than a 1V d.c. change the pilot will not commission.

ξAfter installation check full movement of the steering system ensuring that there is no fouling between the steering gear, rru parts and drive unit.

ξEnsure that there is no backlash in the linkage between the rru and the steering gear, otherwise incorrect operation of the autopilot will occur.

The example shown overleaf is a plan view of a typical system with a tiller arm and quadrant. When viewed in elevation, the ram drive arm and rudder reference unit drag-link must not be more than ±9θ from horizontal. Ideally, all components should be horizontally aligned as this prevents excessive stress during operation.

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