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ULTRAFLEX S.P.A.
HYDRAULIC STEERING SYSTEMS

HYDRAULIC STEERING SYSTEMS

Product catalog summary

Hydraulic and Electro-Hydraulic Steering Systems Overview

System Components and Functionality:
The hydraulic steering system includes a steering pump, a cylinder connected to the rudder or engine, and connecting tubing. It operates by transferring oil from the helm unit to the cylinder, causing the cylinder rod to extend or retract based on steering wheel rotation. Key components are the helm unit, which contains a hydraulic pump and valve assembly, and the cylinder, which can be balanced or unbalanced.

Selection Considerations:
Steering effort is inversely related to the number of wheel turns lock-to-lock, determined by cylinder volume and pump displacement. Factors affecting steering effort include vessel speed, rudder size, engine power, propeller choice, hull type, sea conditions, and oil viscosity.

Ultraflex Hydraulic Steering Systems:
Designed for marine environments, Ultraflex systems ensure durability and safety under extreme conditions.

Cross Reference and Compatibility:
A cross-reference chart is provided for comparing Ultraflex and Teleflex components to facilitate compatibility checks.

Installation Diagrams:
Diagrams for single and dual steering station installations highlight necessary components such as T fittings, filler plugs, and nylon tubes.

Warnings and Recommendations:
Consult a qualified technician for system selection and installation. Specific warnings are provided for certain cylinder applications, particularly regarding maximum engine power and speed limitations.

Helm Pumps and Cylinders:
Details on various models of helm pumps and cylinders, including specifications like displacement, piston count, and relief valve settings, are provided. Features such as built-in lock valves, relief valves, and material specifications are highlighted.

Outboard Steering Applications:
The UC94-OBF cylinder is recommended for outboard engines up to 150 HP, with specific applications listed for various engine brands and models. Installation requirements and optional kits for specific engine configurations are also detailed.

Specifications:

UC128-OBF Cylinder: Available in three versions, with a volume of 120 cc, output force of 450 kg, and stroke of 185 mm. Suitable for engines up to 300 hp, with specific recommendations for dual engine applications.
UC132-OBS Cylinder: Designed for engines up to 300 hp, with a volume of 132/163 cc, output force of 464/574 kg, and stroke of 203 mm. Not recommended for speeds exceeding 45 mph.

Installation Guidelines:

UC128-OBF cylinders require specific link arm kits for initial installation only.
UC132-OBS cylinders feature a patented turning nut for easy installation and require a minimum clearance of 375 mm at the engine tube side.

Warnings and Recommendations:

UC128-OBF is not recommended for boats exceeding 50 mph, except in dual engine, dual cylinder configurations.
UC132-OBS is not intended for racing applications or use with SilverSteer Series Helms.

Hose Kits:
Various hose kits are available for different installation needs, with lengths ranging from 3.00 m to 9.00 m.

Additional Notes:

Suzuki engines from 1998 to 2008 require an optional KIT SU for UC128-OBF/1 cylinder installation.
For high-performance applications, SilverSteer systems are recommended.

Specifications:
The document outlines various components and specifications for high-performance outboard steering systems, specifically the SilverSteer™ series. Key components include hydraulic oil, hose kits, and helm pumps. The systems are designed for high torque applications such as bass boats and flats boats.

Procedures:
When ordering, specify the length required for hose kits and the engine type for the helm pump. The systems are designed to be easily installed with adjustable fittings and are compatible with a wide range of outboard engines.

Norms and Recommendations:
The SilverSteer™ systems feature a 1500 psi relief valve and are recommended for high-performance applications. The systems should not be used in installations where boat speed exceeds 60 mph, except in dual engine, dual cylinder applications.

Features:
The SilverSteer™ systems include a built-in lock valve for positive rudder lock, integral relief valve for over-pressure protection, and a stainless steel shaft. The systems are available in different displacement sizes and feature a compact design with ball bearing piston race.

Warnings:
Ensure that the SilverSteer™ helm pumps are installed with the UC128-SVS cylinder and the Kevlar reinforced hose kit. The systems are not intended for racing applications.

Data Summary:
Various models and their specifications are provided, including displacement per revolution, number of pistons, relief valve settings, and maximum wheel diameter. The document also includes detailed dimensions and weight for each model.

Applications:
The document provides a comprehensive guide for selecting the appropriate cylinder and helm pump based on engine type and application, including single and dual engine configurations.

MasterDrive™ System Features:
The MasterDrive™ system offers three selectable power levels for customizable steering feel and automatically switches to manual mode if power is lost. It is designed for high efficiency with low amp draw and provides immediate control in all sea conditions. The system includes a safety switch, is suitable for dual station installations, and can be used with an autopilot. It operates at 12VDC, is CE marked, and conforms to ABYC P21 and ISO 10592 safety standards.

Helm Features:
The helm is available in two displacement sizes, with front and tilt mount versions. It includes a built-in relief valve, a 3/4” tapered shaft, and a corrosion-resistant painted body.

User Interface Features:
The user interface includes a safety switch, three power levels with light indicators, a motor temperature visual indicator, and a twin engine key selection.

Power Unit Features:
The power unit operates with a 12VDC motor and includes 45° swiveling fittings for easy installation. It has a semitransparent tank for immediate level vision, a vented filler plug, and can be wall or floor mounted.

Hose Kits:
Various hose kits are available with lengths ranging from 1.00 m to 6.00 m for different applications.

Tie Bars for Twin Outboard Engines:
Universal tie bars are available for twin outboard engines, with adjustable lengths and stainless steel components.

Sterndrive Steering:
Sterndrive cylinders are available for various engine models, with balanced and unbalanced options.

Inboard Steering:
The HYCO-I inboard hydraulic steering system is suitable for boats up to 24-26 ft in length and 25 mph max speed. It includes a front mount helm pump, inboard cylinder, hydraulic oil, and a hose kit.

Specifications:
Various models of inboard cylinders are detailed, including material, volume, torque, output force, inside diameter, and stroke length.

Procedures:
Installation instructions for hydraulic steering systems, including the necessary components for single and additional stations.

Standards and Recommendations:
Systems are balanced, ensuring equal turns lock-to-lock from port to starboard. Compatibility with Garmin GHP 10 Autopilot System is highlighted.

Order Guide:
Detailed order guide for different systems, specifying the helm pump models, cylinder models, and additional components required for installation.

Accessories and Fittings:
Various kits and fittings are listed, including bulkhead hose kits, tubing accessories, and fittings for different steering system configurations.

Key Features:
The document emphasizes the importance of using the correct components and configurations for optimal performance and safety. The patented Shadow Drive system in the Garmin autopilot allows manual maneuvering by disengaging the autopilot when the helm is turned. The BubbleBuster™ system simplifies the purging process, reducing time and effort required for maintenance.

Catalog excerpts

HYDRAULIC AND ELECTRO-HYDRAULIC STEERING SYSTEMS 37

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All the components of Ultraflex hydraulic steering systems are made specifically for the marine environment, using materials and working process which offer long life and safety for the most extreme conditions. A hydraulic steering system consists of a steering pump, a cylinder tied to the rudder or to the outboard or sterndrive engine and the connecting nylon or copper tubing. Under normal operating conditions, a turn of the steering wheel will send the oil from the helm unit into one of the two connecting hydraulic lines. The oil will be pumped into one of the chambers of the cylinder and either...

Open the catalog to page 2

SINGLE STEERING STATION INSTALLATION DIAGRAM HELM NYLON TUBES WARNING! With inboard cylinders and copper tube Ø 9,5 mm (3/8”), an additional flexible hose kit needs to be connected to the cylinder. 39 BALLJOINT CYLINDER DUAL STEERING STATION INSTALLATION DIAGRAM MAIN STEERING STATION VENTED FILLER PLUG (black plug) ADDITIONAL STEERING STATION STRAIGHT FITTING FOR COMPENSATION LINE (D) NYLON HOSES HELM WITH NON VENTED FILLER PLUG (silver plug) (B) (B) WARNING! WARNING! In order to avoid oil leakage, the non vented filler plug (silver plug) must be correctly mounted. With inboard cylinders and...

Open the catalog to page 3

SUGGESTION AND WARNINGS WHEN SELECTING A HYDRAULIC STEERING SYSTEM OUTBOARD CYLINDERS Maximum power rating applicable WARNING: These recommendations should be used as a general reference only. Final selection should be made with the assistance of a qualified installation technician. For any further information please contact our Technical Service STEERING WHEEL TURNS single cylinder STEERING WHEEL TURNS double cylinder | Suggested

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HELM PUMPS Built-in lock valve for positive rudder lock Integral relief valve for over-pressure 3/4" tapered anodized aluminun shaft Corrosion proof composite housing Easy accessible lock valve and shaft seal for Includes elbow fittings for 3/8" tube Tilt range of 48° and five locking positions NOTE: X52 tilt mechanism fits standard Ultraflex tilt mount rotary and rack and pinion steering helms as well as standard Ultraflex tilt mount hydraulic pumps. On high performance flnulnur" systems X64 - 40198 C square flange permits to install the UP20F pump in an intermediate dashboard position

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FRONT MOUNT HELM PUMPS Available in five different displacement sizes UP25F and UP33 F models are also available without built-in lock valve (UP25NV F and Compact design Ball bearing piston race Built-in lock valve for positive rudder lock Integral relief valve for over-pressure 3/4" tapered stainless steel shaft Easily accessible lock valve and shaft seal Cast iron rotor for greater durability and longer life Includes elbow fittings UP45 F pumps are ideal for double cylinder round flange permit to install the pumps in an intermediate dashboard position. RELIEF VALVE

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TILT MOUNT HELM PUMPS ■ Available in five different displacement sizes Ball bearing piston race ■ Built-in lock valve for positive rudder lock ■ Integral relief valve for over-pressure ■ Stainless steel shaft ■ Easily accessible lock valve and shaft seal ■ Cast iron rotor for greater durability and longer life ■ Includes elbow fittings ■ UP45 T pumps are ideal for dual cylinder, dual engine applications Tilt range of 48° and five locking positions NOTE: X52 tilt mechanism fits standard Ultraflex tilt mount rotary and rack and pinion steering helms as well as standard Ultraflex tilt mount hydraulic...

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REAR MOUNT HELM PUMPS ■ Available in four different displacement sizes Ball bearing piston race Built-in lock valve for positive rudder lock ■ Integral relief valve for over-pressure ■ 3/4" tapered stainless steel shaft ■ Easily accessible lock valve and shaft seal ■ Cast iron cylinder rotor for greater durability and longer life ■ 1/4" NPT fitting for 3/8" tube except ■ Complete with elbow fittings and white Note: It is possible to transform the UP45 R includes 2 straight fittings for 12 mm tube ■ UP45 R pumps are ideal for double cylinder ■ X68 (optional) - 40894 Z Chrome bezel KIT F (optional)...

Open the catalog to page 8

FRONT MOUNT UC94-OBF - Balanced: the number of turns lock-to-lock is equal port to starboard or vice-versa Adjustable boss style fittings for easy installation High resistance stainless steel connection bolt (ULTRABOLT) INNOVATIVE DESIGN (PATENTED): Split and pinned cylinder mounting rod for easy installation and bushings to prevent friction with engine tilt tube. Depending on the applications on the outboard engines, the UC94-OBF cylinder is available in 2 versions: For twin engine applications, the minimum distance between the two engine centers is

Open the catalog to page 9

with outboard engi- boat speed does not racing application POWER YEAR CYLINDER P. No. These recommendations neral reference only. For Technical Service. 50 Madeira/ Bull shark-60 Grey Shark/St.tropez- 70 Mako Shark 2 Stroke 80 Portof ino/Tigershark 2 Stroke Selva® 150 White Shark 2 Stroke Killer Whale 4 Stroke Suzuki® engines built from 1998 to 2008 installing UC94-OBF/1 cylinder require optional KIT SU - 41954W.

Open the catalog to page 10

UC128-OBF - Balanced: the number of turns lock-to-lock is equal port to starboard or vice-versa Adjustable boss style fittings for easy installation High resistence stainless steel connection bolt (ULTRABOLT) The UC128 cylinder is built to last with heavy duty stainless steel cylinder rod, seals and link assemblies. Constructed of top grade materials, this cylinder is simple to install and fits almost every 2 and 4 stroke outboard engine in the market. See the application guide next page to choose the appropriate cylinder (UC128-OBF/1, UC128-OBF/2 or UC128-OBF/3) for your application. The UC128...

Open the catalog to page 11

For twin engine applications minimum engine center distance is 550 mm (21.6") LA1, LA2, LA3 link arm kits for UC128-OBF standard cylinder and LA1P, LA2P link arm kits for UC128P-OBF port cylinder can also be supplied separately for the first application only, in case the UC128-OBF cylinder needs to be adapted to the already installed outboard engine (see appli- cation guide). "STANDARD" LINK ARMS: "PORT" LINK ARMS: WARNING: LAI, LA2, LAB and LA1P, LA2P link arm kits are recommended for use on the first installation only and not as a retrofit. Installation has to be made by qualified technicians...

Open the catalog to page 12

HYDRAULIC STEERING SYSTEMS

HYDRAULIC STEERING SYSTEMS

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