This document is intended to give details and guidance to a boat builder or equipment installer to install the Seakeeper 40 (40-232-0001 to Current).

Referenced Documents

• 12552 – Seakeeper 40 Crated Gyro
• 90709 – Seakeeper 40 Hardware Scope of Supply

---

1.1 PRECAUTIONS

• The Seakeeper must only be lifted from the supplied lifting eyes shown in Figure 1 (see Section: Transport and Unpacking).
• The Seakeeper flywheel is supported by precision bearings. DO NOT drop or impart mechanical shock to the Seakeeper assembly when lifting or unpacking, as damage to bearings could result.
• While handling / installing the Seakeeper assembly, do not allow electrical fittings that exit bottom of the Seakeeper enclosure to come in contact with any surface or object as this could damage the fittings and potentially affect the vacuum integrity of the enclosure.
• Exercise care to protect the painted finish as damage to finish could lead to early appearance degradation of the installed Seakeeper.

1.1.1 Safety

There is a large torque about the gimbal axis when the Seakeeper is precessing. Seakeeper cover panels are provided to prevent personnel or equipment from contacting the Seakeeper while it is in operation. These covers should not be stepped on or have anything placed on top. The covers should always be in place during operation. The cover side panels contain safety shields as shown below. Do not operate the Seakeeper without these safety shields in place.

If it is ever necessary to access the Seakeeper while the flywheel is spinning, the Seakeeper must be locked at the display to stop the Seakeeper from precessing. Seakeeper regular scheduled maintenance should not be attempted unless the Seakeeper is locked and the flywheel has stopped spinning.

______________________________________________________________________________________________

If it is ever necessary to access the Seakeeper while the flywheel is spinning, the Seakeeper must be locked at the display to stop the Seakeeper from precessing.

__________________________________________________________________________________________________

Stand clear of the Seakeeper and all moving parts when operating.

__________________________________________________________________________________________________

The unit may be started remotely. Assume it could move without warning.

__________________________________________________________________________________________________

The Seakeeper and related structure should be treated with the same respect one gives a high-speed rotating propeller or engine shaft.

__________________________________________________________________________________________________

The following must be true before accessing the Seakeeper for service:
* Input power must be disconnected for at least 10 minutes
* The Seakeeper must be locked (Not in Sea Mode)
* Flywheel must be at zero speed

---

1.2 TRANSPORT AND UNPACKING

Reference Documents

• 90285 – Seakeeper 40 Unpacking Instructions
• 90712 – Seakeeper 40 Packing List

1.2.1 Transport

1. Use a Seakeeper provided shipping crate for transport. Overall dimensions of a fully packed crate are
   58 L x 61 W x 53 H in. (1.32 L x 1.35 W x 1.19 H m) with a weight of 4,506 lbs (2,043 kg).
2. Do not stack Seakeeper shipping crates.
3. Both Air and Ground transport are acceptable.
4. Seakeeper shipping crates must be transported in environmental conditions between -4°F and 140°F (-20°C and 60°C).

1.2.2 Unpacking Crate

1. Reference Seakeeper Drawing No. 12552– Seakeeper 40 Crated Gyro for items that ship with the corresponding Seakeeper model.
2. Remove electrical components, cables, and misc. items and set aside.
3. Remove packing materials that secure Seakeeper assembly inside the crate.
4. Remove top and angled face cover panels to access lifting eyes. Store panels and hardware for reassembly.
5. Attach spreader bar (P/N 80029) to the two lifting eyes located on the top of the Seakeeper enclosure. Stay clear of any other parts on the Seakeeper. See image below.
6. The Seakeeper 40 weighs 3,976 lbs (1,803 kg).