REPLACEMENTKITS.COM Rebuild Seal Kit User Manual

Product Overview

This REPLACEMENTKITS.COM rebuild seal kit is designed to replace worn components in 50 Series Hynautic Steering Helms, specifically models H-50, H-51, and H-52 manufactured in February 1986 and earlier. The kit provides the necessary seals to restore the functionality and prevent leaks in your marine steering system.

The kit directly replaces OEM Part # HS05 and includes a comprehensive set of 7 seals: 4 O-Rings, 1 Quad Ring, 1 Wiper, and 1 Polypack Lip Seal. These components are manufactured from high-grade materials to ensure durability and long-lasting performance in marine environments.

Figure 1: Contents of the REPLACEMENTKITS.COM Rebuild Seal Kit. This image displays all the included seals: four large O-rings, one smaller O-ring, one X-ring (quad ring), one polypack lip seal, and one wiper seal, all in black.

Kit Contents

The REPLACEMENTKITS.COM rebuild seal kit includes the following components:

• 1 "X-Ring" (Quad Ring) - Used as a shaft seal for helms manufactured February 1986 & Earlier.
• 1 "Polypack" Lip Seal - Used as a shaft seal for helms manufactured March 1986 & After (Hallite brand, Made in USA).
• 3 Larger O-rings.
• 1 Smaller O-ring.
• 1 Wiper (Hallite brand, Made in USA).

Note: Ensure to use the correct shaft seal (X-Ring or Polypack) based on your helm's manufacturing date.

Installation Instructions

This section provides general guidance for the installation of the seal kit. Due to the complexity of hydraulic steering systems, it is recommended that installation be performed by individuals with mechanical aptitude or professional experience. Refer to your specific helm's service manual for detailed disassembly and reassembly procedures.

Required Tools and Materials:

• Basic hand tools (wrenches, screwdrivers, pliers)
• Clean rags
• Hydraulic fluid (compatible with your steering system)
• Seal pick or non-marring tool
• Assembly lubricant (e.g., clean hydraulic fluid or silicone grease)

Procedure:

1. Preparation: Ensure the boat's steering system is depressurized. Place absorbent materials around the helm to catch any fluid spills.
2. Disassembly: Carefully disassemble the steering helm according to the manufacturer's service manual. Pay close attention to the order and orientation of all components.
   

   Figure 2: Exploded View Diagram of a Typical Hynautic Steering Helm. This diagram illustrates the various internal components of the helm, including shafts, seals, and housing parts, with numerical labels indicating their positions.

3. Seal Removal: Using a seal pick or appropriate tool, carefully remove all old seals (O-rings, X-ring, Polypack, Wiper) from their grooves and seating areas. Inspect the grooves for any damage or debris.
4. Cleaning: Thoroughly clean all helm components with a suitable cleaner. Ensure no old fluid, dirt, or debris remains.
5. New Seal Installation: Lightly lubricate the new seals with clean hydraulic fluid or assembly lubricant. Install the new seals into their respective grooves, ensuring they are seated correctly and not twisted or pinched.
   • Install the appropriate shaft seal (X-Ring or Polypack) based on your helm's manufacturing date.
   • Install the three larger O-rings and one smaller O-ring into their designated locations.
   • Install the wiper seal.
6. Reassembly: Reassemble the steering helm by reversing the disassembly steps. Ensure all fasteners are tightened to the manufacturer's specified torque.
7. System Bleeding: After reassembly, refill the hydraulic steering system with the correct type of hydraulic fluid and bleed the system according to the boat manufacturer's instructions to remove all air.
8. Leak Check: Operate the steering system through its full range of motion and carefully inspect for any leaks around the helm.

Maintenance

Regular maintenance of your hydraulic steering system, including periodic inspection of seals, is crucial for safe and reliable operation. While this kit provides replacement seals, the longevity of the repair depends on proper installation and ongoing system care.

• Fluid Level Check: Regularly check the hydraulic fluid level in your steering system reservoir and top up as needed with the recommended fluid.
• Leak Inspection: Periodically inspect all hydraulic lines, fittings, and the steering helm for any signs of fluid leaks. Address any leaks promptly to prevent system failure.
• System Bleeding: If the steering feels spongy or unresponsive, it may indicate air in the system. Bleed the system as per your boat's manual.

Troubleshooting

If you encounter issues after installing the seal kit, consider the following common problems and solutions:

If troubleshooting steps do not resolve the issue, it is recommended to consult a qualified marine mechanic or the helm manufacturer for further assistance.

Specifications

Warranty and Support

REPLACEMENTKITS.COM stands behind the quality of its products. This rebuild seal kit is manufactured with high-grade materials to ensure reliable performance.

For any questions regarding installation, compatibility, or product performance, please contact REPLACEMENTKITS.COM customer support. The company offers a 100% satisfaction guarantee on its aftermarket parts.

While specific warranty terms are not detailed here, please refer to the official REPLACEMENTKITS.COM website or contact their customer service for the most current warranty information and support options.