Simrad RPU80/160/300 Reversible Pump Instruction Manual

About this manual

The document serves as a reference guide for the correct installation and maintenance of the Simrad RPU80, RPU160, and RPU300 reversible pumps. It details the relationship between these pumps and complete autopilot systems, covering mechanical and electrical installation procedures.

The manual includes sections on preparation and testing, such as oil filling and bleeding, followed by comprehensive maintenance instructions for dismantling the pump unit and electric motor. A significant portion is dedicated to fault tracing, addressing issues like non-responsive motors, rudder drift, excessive noise, and uneven piston rod movement.

What's inside

• Introduction
• Hydraulic steering gear suitable for the RPU
• Measurements and calculations for applying the RPU
• Description of RPU80/RPU160/RPU300
• Installation (Mechanical and Electrical)
• Preparation and Testing
• Maintenance (Dismantling, Electric motor, Valve block)
• Fault Tracing

Specifications

Frequently asked questions

What oil viscosity is recommended for these pumps?

Any well known hydraulic oil with viscosity between 15-70 cSt at 40°C can be used.

What is the optimal rudder time for automatic steering?

Experience has shown that a rudder time between 10 and 15 seconds hard over to hard over normally gives the best steering performance.

Does this manual cover previous RPU80 models?

No, it does not cover a previous model RPU80 with serial numbers 101-248.