Specifications

AUTOPILOTS 81
ORDERING INFORMATION|
M81120 Type 1 (12V)
M81119 Type 1 (24V)
M81121 Type 2 (12V)
M81123 Type 2 (24V)
M81122 Type 3 (12V)
M81124 Type 3 (24V)
E12139 0.5 Litre pump
E12171 Constant running pump (12V)
E12172 Constant running pump (24V)
Installation
We recommend that you consult a
Raymarine approved dealer who can
specify, install and commission the correct
Raymarine system for your boat. An
approved installation also carries our full
worldwide 2 year warranty.
Know your boat and your steering system
The first step in selecting a Raymarine autopilot is to choose the
proper autopilot drive unit for your vessel. Raymarine autopilot
drive units are available in an array of sizes and configurations to
accommodate various steering types and vessel displacements.
What type of steering system do you have?
To select an autopilot correctly, you will need to find out what
type of steering system is installed on your vessel. This may
involve opening a few hatches and looking at the gear, or this
can be a simple case of consulting your boat dealer or steering
manufacturer.
Raymarine SmartPilot systems accommodate hydraulic,
mechanical and power assisted stern drive systems. If you are not
sure how to determine what type of steering system is installed
on your vessel, please consult an authorised Raymarine dealer.
Raymarine dealers are well-skilled and have been Raymarine
trained to evaluate and assist you in selecting the right autopilot
for your boat.
Step 1.0:
Drive Unit Selection
Raymarine SmartPilots connect to hydraulic steering systems
using a rugged hydraulic pump matched to the capacity of the
hydraulic steering system. To match a Raymarine SmartPilot
hydraulic pump to your vessel you need to know the size (in cc)
of the hydraulic cylinder ram(s) that is mounted to the rudder on
inboard engined boats, or mounted to the drive unit on outboard
engined boats. Your steering system documentation will have
this information. Alternatively, you can look on the cylinder ram
itself for the brand and model number. Once you know the model
number, visit our website (www.raymarine.com) and access
our hydraulic cylinder ram cross-reference guide to determine
which hydraulic autopilot pump is compatible with your vessel's
hydraulic steering system.
Raymarine autopilot hydraulic pumps are available in several sizes
to accommodate the broad range of steering cylinder capacities.
The table below shows the capacity of each Raymarine hydraulic
autopilot pump when used with the corresponding SmartPilot
course computers.
Step 1.1:
Hydraulic Steering Systems
HYDRAULIC STEERING SYSTEMS
DRIVE TYPE TYPE 0.5 TYPE 1 TYPE 2 TYPE 3
Vessel displacement Not applicable for hydraulic steering as the drive unit is matched to the ram capacity of the steering system
Ram capacity 50–110cc 80–230cc 230–350cc 350–500cc
Maximum stall pressure at 12V 50 bar 50 bar 100 bar 80 bar
Peak flow rate (no load) 650 cc/min 1000cc/min 2000cc/min 2900cc/min
Course computer used SPX-10 SPX-10 SPX-30 SPX-30
` In some systems with dual steering rams in parallel, cylinder capacity is the total of both rams. Rams in series only require single capacity valve. Hydraulic steering systems with
steering rams over 500cc require our larger constant running hydraulic pump used in conjunction with SPX and SPX-SOL course computers – contact Raymarine for details.
` An authorised Raymarine dealer is best suited to installing a hydraulic autopilot system.
` Type 0.5 suitable for Volvo D4 / D6 Sterndrive applications.
Constant running pump
For information on the Constant
Running Pump usage, please contact the
Raymarine product support department.