Garmin GHP Reactor Hydraulic Corepack with SmartPump Manuel d'installation télécharger pdf (Page 2)

• The area behind the mounting surface must allow room for

the routing and connection of the cables.

Helm Control Connection Considerations

• The helm control must connect to the NMEA 2000

network.

• Optional NMEA

0183 devices, such as wind sensors, water-

speed sensors, or GPS devices can be connected to the

helm control using a data cable (NMEA 0183 Connection

Considerations).

CCU Mounting and Connection Considerations

• The CCU is the primary sensor of the GHP Reactor

SmartPump autopilot system. For best performance, observe

these considerations when selecting a mounting location.

◦ A handheld compass should be used to test for magnetic

interference in the area where the CCU is to be mounted.

If the needle on a handheld compass moves when you

hold it where you want to mount the CCU, magnetic

interference is present. Choose another location and test

again.

◦ The CCU should be mounted on a rigid surface for best

performance.

◦ Though the CCU can be installed in any orientation on

your boat, you can avoid the step of defining north in the

setup procedure by meeting all of the following

considerations when selecting a mounting location

(optional).

◦ The connectors on the CCU must point towards the

bow.

◦ The base of the CCU must be square with the roll and

pitch axis of the boat.

◦ The CCU must be located near the center of rotation of

the boat, slightly towards the front if necessary.

• The CCU cable connects the CCU to the SmartPump and is

5 m (16 ft.) long.

◦ If the CCU cannot be mounted within 5 m (16 ft.) of the

SmartPump, replacement and extension cables are

available from your local Garmin dealer or at

www.garmin.com.

◦ This cable must not be cut.

Finding the Best Mounting Location

Create a list of all suitable mounting locations for the CCU

where no iron, magnets, or high-current wires are located

within 60 cm (2 ft.).

A large magnet, such as a subwoofer-speaker magnet should

be no closer than 1.5 m (5 ft.) to these locations.

Locate the center of rotation of the boat, and measure the

distance between the center of rotation and each of the

suitable mounting locations you listed in step 1.

Select the location closest to the center of rotation.

If more than one location is approximately the same distance

from the center of rotation, you should select the location that

best meets these considerations.

• The best location is closest to the centerline of the boat.

• The best location is lower in the boat.

• The best location is slightly forward in the boat.

Pump Mounting Considerations

Consult the hydraulic-layout diagrams starting on Hydraulic

Layouts to help determine the pump-installation location.

• The pump must be mounted at a location to which you can

extend the hydraulic steering lines of the boat.

• The pump has five hydraulic-connector fittings, although only

three are used when installing the pump as recommended.

The illustration on Pump Valves and Fittings may be helpful

when determining the fitting layout that is best for your

installation location.

Pump Hydraulic Considerations

NOTICE

When adding hydraulic line to the system, use only hose with

machine-crimped or field-replaceable fittings that have a

minimum rating of 1000 lbf/in² (6,895 kPa).

Do not use plumber’s tape on any hydraulic fitting. Use an

appropriate thread sealant rated for marine use on all pipe

threads in the hydraulic system.

Do not attempt to use the autopilot to steer the boat until you

bleed all air from each part of the hydraulic system.

Consult the hydraulic-layout diagrams starting on Hydraulic

Layouts to help determine how to best install the pump in the

hydraulic system of the boat.

The recommended pump installation method requires the

installation of T-fittings and shutoff valves so the pump can be

removed for service without disabling the steering system. This

type of installation will use only three of the five ports on the

manifold. Although it is not recommended, all five ports can be

used instead of installing shutoff valves. See Pump Valves and

Fittings for more information on the fittings and alternate

connection methods.

Pump Valves and Fittings

The pump can be connected to the hydraulic system using one

of two methods. The recommended three-connector method

uses only the H1

and H2

fittings, with a T-connector

splitting the connection between the helm and cylinder. The

return line fitting

connects to only the helm. The check valves

should not be reconfigured if the boat is equipped with a

balanced cylinder. If the boat is equipped with an unbalanced

cylinder, the check valves must be reconfigured (Configuring the

Pump for an Unbalanced Cylinder). The bypass valve

opened only for hydraulic bleeding, and must be fully tightened

during normal operation.

If necessary, the C1

and C2

fittings can be used with the

recommended three-connector installation instead of the H1 and

H2 fittings.

Alternatively, the pump can be installed using all five

connectors. This installation option uses the C1 and C2 fittings

to connect the pump to the cylinder and the H1 and H2 fittings to

connect the pump to the helm. This type of installation is not

recommended, because the pump cannot be removed for

service without disabling the steering system of the boat.

Configuring the Pump for an Unbalanced Cylinder

NOTICE

To avoid damage to the pump, keep all parts clean and free of

dust and debris while configuring the pump for an unbalanced-

cylinder steering system.

If you remove the check valves after bleeding the hydraulic

system, you must bleed it again. Reconfiguring the check valves

may introduce air into the hydraulic system.

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Garmin GHP Reactor Hydraulic Corepack with SmartPump Manuel d'installation Page 2

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