Ultraflex Hydraulic Steering System NAUTECH

ULTRAFLEX NAUTECH-1 hydraulic Steering System For Outboards Up To 300Hp

NAUTECH-1 package kit includes:

• UP25 F Front mount helm pump.
• UC128-OBF outboard cylinder.
• OL 150 Hydraulic oil - 2 litres.
• KIT OB-60 Hose kit with preassembled fittings. Length: from 3 m (9.8') to 9 m (29.5')

Ultraflex UP28F - Front Mount Helm

Front mount position helm pump available in five different displacement sizes.

Built-in lock valve for positive rudder lock, and integrated relief valve for over- pressure protection, 5/7 pistons, 1.5/1.7/2.0/2.4/2.7 cu. in displacement/ revolution.

Square and round flanges available to install in intermediate dashboard position.

Ultraflex UP28F Helm Pump Features:

• Built-in lock valve for positive rudder lock
• Integral relief valve for over-pressure protection
• 3/4" tapered stainless steel shaft
• Easy accessible lock valve and shaft seal for replacement
• Includes 90º adjustable fittings for 3/8" hose
• Ball bearing piston race
• Cast iron rotor for greater durability and longer life
• X64 square flange or X57 round flange to install the pumps with intermediate dashboard position.

Ultraflex UP28F Helm Pump Installation Manual

Features Ultraflex UC128-OBF - Balanced Hydraulic Cylinder: the number of wheel 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)
• Replaceable cylinder end caps
• UC128-OBF cylinder is built with heavy duty stainless steel cylinder rod, seals and link assemblies, is simple to install and fits almost every 2 and 4 stroke outboard engine on the market.
• UC128-OBF cylinders are recommended for use with UP25, UP28, UP33 and UP39 series helms and preassembled hoses (Kit OB and Kit OB/R5).
• In the applications with dual UC128-OBF cylinder it is necessary to order a standard UC128-OBF cylinder (link arm attached to the starboard side of the cylinder) and a port UC128P-OBF cylinder (link arm attached to the port side of the cylinder). See tie bars section to select the required model for dual engine/ dual cylinder applications.

The UC128-OBF front mount cylinder is not recommended for use in installations where the boat speed exceeds 55 mph (48 knots) / (65 mph (56 knots) in dual engine, dual cylinder and counter rotating engines application). Not intended for use in racing applications.

UC128-OBF Hydraulic Cylinder Installation Manual