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Raymarine Hydraulic Pump Installation Manual
Summary of Hydraulic Pump
Page 1
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..
Page 2: Hydraulic Pump
Hydraulic pump installation guide drives covered: m81120 type 1 hydraulic pump 12 v m81119 type 1 hydraulic pump 24 v m81121 type 2 hydraulic pump 12 v m81123 type 2 hydraulic pump 24 v m81122 type 3 hydraulic pump 12 v m81124 type 3 hydraulic pump 24 v document number: 81178-3 march 2001.
Page 3: Important Information
2 hydraulic pump - 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 da...
Page 4: Introduction
Hydraulic pump - installation guide 3 introduction product description welcome to the installation guide for the raymarine hydraulic pump (also known as the raymarine reversing hydraulic pump). This product is intended to operate the boat’s steering mechanism as part of a raymarine autopilot system....
Page 5: Specifications
4 hydraulic pump - installation guide specifications pump specifications pump dimensions figure 2: type 1 (12 v) and type 2 pump dimensions table 1: pump specifications performance (at nominal voltage) type 1 (t1) m81120 (12 v) m81119 (24 v) type 2 (t2) m81121 (12 v) m81123 (24 v) type 3 (t3) m81122...
Page 6: Installation Instructions
Hydraulic pump - installation guide 5 figure 3: type 3 pump dimensions installation instructions parts required to install this drive you will need: • parts supplied: • hydraulic pump • if required: 1 / 4 in bsp to 1 / 4 in npt adaptors (x3) • additional parts: • suitable hydraulic pipes, hydraulic ...
Page 7: Installation Steps
6 hydraulic pump - installation guide installation steps warning: electrical safety make sure you have switched off the power supply before you start installing this product. Follow these steps to install your hydraulic pump: Ï Ï Ï Ï 1. Emc installation guidelines all raymarine equipment and accesso...
Page 8: Suppression Ferrites
Hydraulic pump - installation guide 7 for optimum emc performance, it is recommended that wherever possible: • raymarine equipment and cables connected to it are: • at least 3 ft (1 m) from any equipment transmitting or cables carrying radio signals e.G. Vhf radios, cables and antennas. In the case ...
Page 9: 2. Pump Mounting
8 hydraulic pump - installation guide connections to other equipment if your raymarine equipment is to be connected to other equipment using a cable not supplied by raymarine, a suppression ferrite must always be attached to the cable near to the raymarine unit. 2. Pump mounting mount the hydraulic ...
Page 10: Warning:
Hydraulic pump - installation guide 9 • try to keep hydraulic fluid loss to a minimum when installing the pump. This will reduce the time and effort required to bleed the system of trapped air after installation: • non-pressurized systems: temporarily fit a non-venting plug to the helm reservoir ven...
Page 11: Hydraulic Steering Systems
10 hydraulic pump - installation guide hydraulic steering systems there are three basic types of hydraulic steering systems: • two line systems • two line pressurized systems • three line systems on the following pages we describe typical connection points for the autopilot pump on each of these sys...
Page 12
Hydraulic pump - installation guide 11 two line pressurized systems two line pressurized systems have an external pressurized reservoir. This reduces the possibility of introducing air into the system and reduces any steering ‘sponginess’ caused by pipe expansion. Connect the autopilot pump to the s...
Page 13
12 hydraulic pump - installation guide three line systems in a three line system, the hydraulic fluid flows in only one direction: • out of the helm pump to the ram • returning from the other side of the ram to the reservoir via a common return line the system will include a check valve block to dir...
Page 14: Warning: Electrical Safety
Hydraulic pump - installation guide 13 4. Connecting to the course computer warning: electrical safety make sure the power supply is switched off before you make any electrical connections. The hydraulic pump has electrical connections for its motor: a red and a black cable. Note: to meet current em...
Page 15
14 hydraulic pump - installation guide mechanical steering systems if you are fitting the pump to a boat with mechanical steering you will need to connect it to a secondary steering ram, along with a solenoid- operated bypass valve. This bypass valve allows you to switch between autopilot course con...
Page 16: 5. Post-Installation Check
Hydraulic pump - installation guide 15 note: follow the manufacturer’s instructions for mounting the hydraulic ram and reservoir. Figure 9: connecting to a secondary steering ram 5. Post-installation check warning: keep clear of moving steering systems at all times. Protect moving parts from access ...
Page 17: Bleeding The System
16 hydraulic pump - installation guide bleeding the system bleeding the hydraulic system correctly is one of the most important steps when installing the autopilot hydraulic pump. If there is any air in the system the steering will feel spongy, particularly when you turn the wheel to hardover. Cauti...
Page 18: Maintenance
Hydraulic pump - installation guide 17 maintenance on a regular basis: • check that all connections and mountings are secure • check pipes and cables for any signs of wear or damage • check pipes and joints for any leaks emc servicing and safety guidelines • raymarine equipment should be serviced on...
Page 19
18 hydraulic pump - installation guide raymarine ltd anchorage park portsmouth, hampshire england po3 5td telephone +44 (0)23 9269 3611 fax +44 (0)23 9269 4642 www.Raymarine.Com raymarine inc 22 cotton road, suite 280 nashua nh 03063-4219, usa telephone +1 603 881 5200 fax +1 603 864 4756 www.Raymar...