Raymarine LINEAR DRIVE User Manual
Distributed by
Any reference to Raytheon or
RTN in this manual should be
interpreted as Raymarine.
The names Raytheon and RTN
are owned by the
Raytheon Company.
Linear Drive
Installation Guide
Drives covered:
M81130 Type 1 Linear Drive 12 V
M81131 Type 2 (short) Linear Drive 12 V
M81132 Type 2 (long) Linear Drive 12 V
M81133 Type 2 (short) Linear Drive 24 V
M81134 Type 2 (long) Linear Driv e 24 V
Document number: 81175-3
March 2001
2 Linear Drive - Installation Guide
Important information
Safety notices
WARNING: Product installation
This equipment must be installed and operated in accordance
with the instructions contained in this handbook. Failure to do so
could result in poor pr oduct performance, personal injury and/
or damage to your boat.
Because correct performance of the boat’s steering is critical for
safety , we STRONGLY RECOMME ND that an Authori zed
Raymarine Service Representative fits this product.
WARNING: Navigation aid
Although we have designed this pr oduct to be accurate and
reliable, many factors can affect its performance. As a result, it
should only be used as an aid to n avigation and should never
replace commons ense and navigational judgement. A lways
maintain a permanent watch so you can respond t o situations as
they develop.
EMC conformance
All Raymarine equipment and accessories are designed to the best
industry standards for use in the recreational marine environment.
The design and manufacture of Raymarine equipment and
accessories conform to the appropriate Electromagnetic
Compatibility (EMC) standards, but correct installation is required to
ensure that performance is not compromised.
Handbook information
T o the best of our knowledge, the information in this han dbook was
correct when it went to press. However, Raymarine cannot accept
liability for any inaccuracies or omissions it may contain. In addition,
our policy of continuous product improvement may change
specifications without notice. As a result, Raymarine cannot accept
liability for any differences between the product and the hand book.
© Raymarine Ltd 2001.
Linear Drive - Installation Guide 3
Introduction
Product description
W elcome to the installation guide for the Raymarine linear drive.
This product is intended to operate the boat’ s steering mechanism as
part of a Raymarine autopilot system. It is designed for boats with
existing mechanical steering systems
CAUTION:
This drive moves the rudder directly from the tiller arm or
rudder quadrant. Before installing the drive, check that the
boat’s steering system can be backdriven from the rudder .
The outstanding design of the Raymarine linear dri ve unit provides:
• powerful thrust, fast hardover times and quiet operation
• low backdrive force, to minimize the drive’s effect on the boat ’s
steering when the autopilot is in standby
• a powerful electric motor controlled by an electromagnetic failsafe clutch, using a high tensile belt drive and epicyclic gearbox
• high performance for minimum current consumption
Clutch cable
Motor cables
Push rod
Rod end
Figure 1: Main parts of the linear drive
Contents
This guide contains:
Mounting foot
Product specifications page 4
1
Installation instructions page 5
2
Maintenance information page 14
3
Motor, gearbox and
clutch assembly
D5075-1
4 Linear Drive - Installation Guide
Specifications
Drive specifications
Table 1: Drive specifications
Performance*
(at nominal voltage)
Maximum boat displacement 10,000 kg
Peak thrust 295 kg
Maximum stroke 300 mm
Hardover to hardover time
(+/- 35º, no load)
Maximum rudder torque 735 Nm
Power consumption
(typical average)
Other information (applies to Types 1 and 2 short/long)
Type 1 (T1)
M81130 (12 V)
(22,000 lb)
(650 lb)
(12 in)
11 sec 11 sec 14 sec
(6,500 lb.in)
18-36 W 48-72 W (12 V)
protected for use in engine compartments
CE approvals - conforms to:
89/336/EC (EMC), EN60945:1997
94/25/EC (RCD), EN28846:1993
Type 2 short
(T2S)
M81131 (12 V)
M81133 (24 V)
15,000 kg
(33,000 lb)
480 kg
(1,050 lb)
300 mm
(12 in)
1,190 Nm
(10,500 lb.in)
66-96W (24 V)
Typ e 2 long
(T2L)
M81132 (12 V)
M81134 (24 V)
20,000 kg
(44,000 lb)
480 kg
(1,050 lb)
400 mm
(16 in)
1,660 Nm
(14,700 lb.in)
Linear Drive - Installation Guide 5
Drive dimensions
A (midstroke)
197 mm (7.8 in)
79 mm (3.1 in)
90º
50 mm (2 in)
114 mm (4.5 in)
4 fixing holes suitable
for 10 mm (0.4 in) bolts
Figure 2: Linear drive dimensions
Installation instructions
Parts required
T o install this drive you will need:
• Parts supplied:
• linear drive
• mounting foot assembly , consisting of: foot, pivot pin, washer
(x2), R-clip (x2)
• tiller pin assembly (see Figure 6) consisting of: tiller pin,
R-clip, top washer, lock washer, nut (
• Additional parts:
• suitable securing bolts and lock nuts/lock washers (see
page 10)
• suitable cable and electrical connectors for the drive motor
and clutch (see page 12)
Note: Make sure you have obtained these additional parts before you
start installation.
Drive Dimension 'A'
Type 1 700 mm (27.5 in)
Type 2 (short) 700 mm (27.5 in)
Type 2 (long) 850 mm (33.5 in)
1
/
inch UNC nylock)
2
D5081-1
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