The hydraulic linear drive system is designed for boats with existing mechanical steering systems, not hydraulic steering systems. It provides a totally isolated autopilot steering system consisting of:

Hydraulic ram: a self-contained autopilot steeringcylinder with a load limiting system and a built in clutch (to allow friction-free steering when the autopilot is not in use).

Reversing hydraulic pump: powers the hydraulic ram.

Hydraulic fluid reservoir: supplies hydraulic fluid to the system

Helm speed	Hardover to hardover time (+/- 35º, no load) 12 sec
Maximum rudder torque	23,100 lb.in (2,565 Nm)
Maximum stroke	12 in(305 mm)
Maximum vessel displacement	77,000lb (35,000 kg)
Peak thrust	2,200 lb (1,000 kg)

hydraulic ram

hydraulic pump

hydraulic pipes

fluid reservoir (supplied fitted with transit cap; standard cap also supplied)

hydraulic fluid (to fill reservoir)

tiller pin assembly consisting of: tiller pin,R-clip, top washer, lock washer, nut (UNC nylock)