Summary of the content on the page No. 1
about the 2.1 L Hydraulic Pump
The 2.1 L hydraulic pump steers your boat by interacting with the
hydraulic steering system, based on commands you enter using the
autopilot display unit. The pump is not included in the autopilot core
package box because the type of pump you use with your autopilot is
2.1 L Hydraulic Pump Installation
determined by the size and type of steering system on your boat.
Instructions
Hardware needed
To obtain the best performance and to avoid damage to your boat,
Summary of the content on the page No. 2
Dual Helm without Power assist Mounting the Pump 1. Disconnect the necessary lines from the hydraulic system. Before you mount the pump, if your boat has an unbalanced cylinder steering system, you must re-configure the pump to work properly with 2. Add a t-connector to the starboard and port lines of the system the unbalanced cylinder (page 3). between the helm t-connector and the steering cylinder. 3. Add hydraulic hose to the unused fitting on each t-connector, 1. After you select a mount
Summary of the content on the page No. 3
Hydraulic Fluid Bleeding unbalanced Cylinder Configuration If the boat has an unbalanced cylinder steering system, you must notice configure the pump to work properly with the steering system. The following is a general procedure for bleeding a hydraulic steering system. Refer to the instructions provided by the manufacturer of Configuring the Pump for an unbalanced Cylinder the steering system for more-specific information about bleeding the notice system. Keep all parts clean and free of d
Summary of the content on the page No. 4
Pump Valves and Fittings The 2.1 L pump can be connected to the hydraulic system using one of two methods. The five-connector method (page 8) uses the C1 ➊ and C2 ➋ fittings to connect the pump to the cylinder and the H1 ➌ and H2 ➍ fittings to connect the pump to the helm. The three-connector method (pages 5–7) uses only the H1 and H2 fittings, with a t-connector splitting the connection between the helm and cylinder. The return line fitting ➎ is used in both cases to connect to only the helm
Summary of the content on the page No. 5
Hydraulic Layouts notice If the steering system in your boat does not match any of the hydraulic layouts in this manual and you are unsure how to install the pump, contact Garmin Product Support. Before you start the pump installation, identify the type of hydraulic steering system in your boat. Each boat is different, and you must consider certain aspects of the existing hydraulic layout before deciding where to mount the pump. Single-Helm without Power assist Layout Shadow Drive ➊ ➊ ➋ Port
Summary of the content on the page No. 6
Dual Helm without Power assist Layout ➊ ➋ ➌ ➍ ➎ ➏ ➏ ➐ ➏ ➑ ➒ Return line ➊ Shadow Drive ➋ Port line ➌ Starboard line ➍ Pump ➎ Shut-off valves ➏ ➐ Lower helm Upper helm ➑ Steering cylinder ➒ Installation Considerations • The pump must be reconfigured if the boat is equipped with an unbalanced steering cylinder (page 3). • The pump should be mounted the pump horizontally if possible. • If the pump must be mounted vertically, mount it with the hydraulic connections facing upward. • Garmin recommend
Summary of the content on the page No. 7
Single Helm with Power assist Layout Shadow Drive ➊ ➊ ➋ Port line ➋ ➌ ➌ Starboard line Return line ➍ ➍ Helm ➎ Power assist module ➏ Pump ➐ Shut-off valves ➑ ➎ Steering cylinder ➒ ➏ Installation Considerations • The pump must be reconfigured if the boat is equipped with an unbalanced steering cylinder (page 3). • The pump should be mounted the pump horizontally if possible. • If the pump must be mounted vertically, mount it with the hydraulic connections facing upward. • Removal of the power
Summary of the content on the page No. 8
Five-Connector Install Method The diagrams on pages 5–7 show the recommended pump installation method, with t-connectors in the hydraulic steering lines of the boat, using only three fittings on the manifold. However, it is possible to install the pump using the five-connector method, as shown in this illustration. Port line to steering cylinder ➊ Return line to helm ➋ Starboard line to steering cylinder ➌ ➊ ➋ ➌ Port line to helm ➍ Starboard line to helm ➎ ➍ ➎ © 2011 Garmin Ltd. or its subsidia
