Raymarine Hydraulic Steering Pump - Type 2
Raymarine Evolution pilots connect to hydraulic steering systems using a rugged hydraulic pump matched to the capacity of the hydraulic steering system.
If your system is hydraulic...
You'll need to find out the size (in cc) of the hydraulic cylinder ram(s) mounted to the rudder or inboard engined boats, or to the drive unit on outboard engined boats. Your steering system documentation will have this information.
Autopilot Tip
If you cannot find the ram size on your steering system documentation, you can look on the cylinder ram itself for the brand and model number. Once you have the number use Raymarine's hydraulic cylinder ram cross-reference guide to determine which hydraulic autopilot pump is compatible with your vessel's hydraulic steering system.
Notes:
- In some systems with dual steering rams in parallel, cylinder capacity is the total of both rams. Rams in series only require single capacity valve. Hydraulic steering systems with steering rams over 500cc require Raymarine's larger constant running pump used in conjunction with the relevant ACU - follow ACU link below for details.
- An authorised Raymarine dealer is best suited to installing a hydraulic autopilot system.
| Drive Type | Type 2 (12V & 24V) |
| Vessel displacement | Does not apply. The drive unit is matched to the ram capacity of the steering system. |
| Ram Capacity | 230cc – 350cc (14in3–21in3) |
| Maximum Stall Pressure at 12V | 100bar (1450psi) |
| Peak Flow Rate (No Load) | 2000cc/min (122in3/min) |
| ACU Used | ACU-400 |
