HYDRAULIC STEERING SYSTEMS
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HYDRAULIC AND ELECTRO-HYDRAULIC STEERING SYSTEMS 37

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...

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...

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

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

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

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...

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...

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

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.

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...

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...