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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.
Rotary Drive
Installation Guide
Drives covered:
M81135 Type 1 Rotary Drive 12 V
M81136 Type 2 Rotary Drive 12 V
M81137 Type 2 Rotary Drive 24 V
Document number: 81174-3
March 2001
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Rotary 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 product performance, personal injury and/ or damage to your boat.
Because correct performance of the boat’s steering is critical for safety, we STRONGLY RECOMMEND that an Authorized Raymarine Service Representative fits this product.
WARNING: Navigation aid
Although we have designed this product to be accurate and reliable, many factors can affect its performance. As a result, it should only be used as an aid to navigation and should never replace commonsense and navigational judgement. Always maintain a permanent watch so you can respond to 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
To the best of our knowledge, the information in this handbook 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 handbook.
© Raymarine Ltd 2001.
Rotary Drive - Installation Guide |
3 |
Introduction
Product description
Welcome to the installation guide for the Raymarine rotary drive. This product is intended to operate the boat’s steering mechanism as part of a Raymarine autopilot system. It is designed for steering systems that can be driven from the helm position through a chain and sprocket (for example: cable and rod steering systems).
The outstanding design of the Raymarine rotary drive unit provides smooth, powerful autopilot-controlled steering with quiet operation.
The main parts of the drive are:
•a rugged electric motor, that drives a precision epicyclic gearbox via a high tensile drive belt
•an electromagnetic clutch that transmits high torque loads without slipping
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Motor, gearbox |
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and clutch assembly |
Drive shaft |
Clutch cable |
Mounting foot |
Motor cables |
D5082-1
Figure 1: Main parts of the rotary drive
Contents
This guide contains:
1 |
Product specifications |
page 4 |
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2 |
Installation instructions |
page 5 |
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3 |
Maintenance information |
page 15 |
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4 |
Rotary Drive - Installation Guide |
Specifications
Drive dimensions
274 mm (10.8 in)
195 mm
(7.7 in)
20 mm (0.8 in) |
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256 mm (10 in) |
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60 mm
184 mm (2.4 in)
(7.2 in)
60 mm
(2.4 in)
2 slots to accept |
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12 mm (0.5 in) bolts |
D5087-1 |
Figure 2: Drive dimensions
Drive specifications
Table 1: Drive specifications
Performance |
Type 1 (T1) |
Type 2 (T2) |
(at nominal voltage) |
M81135 (12 V) |
M81136 (12 V) |
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M81137 (24 V) |
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Maximum boat |
10,000 kg |
20,000 kg |
displacement |
(22,000 lb) |
(44,000 lb) |
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Peak output torque |
20 Nm |
34 Nm |
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(180 lb.in) |
(300 lb.in) |
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Maximum shaft speed |
33 rpm |
33 rpm |
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Recommended hardover |
10 sec |
10 sec |
to hardover time (no load) |
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Power consumption |
24-48 W |
60-84 W (12 V) |
(typical average) |
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72-120 W (24 V) |
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Rotary Drive - Installation Guide |
5 |
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Table 1: Drive specifications (contd) |
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Other information |
(applies to Types 1 and 2) |
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protected for use in engine compartments |
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CE approvals - conforms to: 89/336/EC (EMC), EN60945:1997 94/25/EC (RCD), EN28846:1993
Installation instructions
Parts required
To install this drive you will need:
•Parts supplied:
•rotary drive
•mounting foot
•spacing shims (x3)
•Additional parts:
•suitable securing bolts and lock washers/lock nuts (see page 9)
•suitable sprockets and grub screws for drive and steering system (see page 9)
•thread-locking compound
•suitable drive chain (see page 9)
•suitable cable and electrical connectors for the drive motor and clutch (see page 13)
Note: Make sure you have obtained these additional parts before you start installation.
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