Raymarine Constant Running Hydraulic Pump Installation Manual Download Page 1

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Constant Running
Hydraulic Pump

Installation Guide

Drives covered:

M81125

Type CR1 (3 L) Constant Running Pump 12 V

M81127

Type CR1 (3 L) Constant Running Pump 24 V

M81126

Type CR2 (4.5 L) Constant Running Pump 12 V

M81128

Type CR2 (4.5 L) Constant Running Pump 24 V

Document number: 81179-3
March 2001

Summary of Contents for Constant Running Hydraulic Pump

Page 1: ...uide Drives covered M81125 Type CR1 3 L Constant Running Pump 12 V M81127 Type CR1 3 L Constant Running Pump 24 V M81126 Type CR2 4 5 L Constant Running Pump 12 V M81128 Type CR2 4 5 L Constant Runnin...

Page 2: ...ommonsense 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 bes...

Page 3: ...th mechanical steering in conjunction with a secondary steering ram and bypass valve The pump contains a built in reservoir that holds hydraulic fluid and an integral solenoid valve that controls the...

Page 4: ...M81128 24 V Ram capacity 350 500 cc 21 30 in3 500 1200 cc 30 73 in3 Ram single or double ended Maximum stall pressure at 12 V 50 bar 750 psi 50 bar 750 psi Peak flow rate no load 3000 cc min 180 in3 m...

Page 5: ...the drive motor and solenoid control valves see page 13 CR interface to connect to Type 100 300 course computer bypass valve if connecting to a secondary steering ram Note Obtain these additional part...

Page 6: ...erent items of electrical equipment 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 transmi...

Page 7: ...k the CR pump s mounting feet on any solid structures as the impact may damage the aluminium castings Mount the CR pump on a substantial member to avoid vibration that could damage the hydraulic pipes...

Page 8: ...train on the pipes Try to keep hydraulic fluid loss to a minimumwhen installing the pump This will reduce the time and effort required to bleed the system of trapped air after installation non pressur...

Page 9: ...t has a single helm pump system without check valves you must incorporate a double pilot check valve part number M81166 as shown in Figure 3 A double pilot check valve may also be necessary on long pi...

Page 10: ...m Hydraulic fluid flows into the ram in either direction depending on the direction the helm pump rotates Connect the autopilot pump to the steering system as shown in Figure 3 Figure 3 Autopilot pump...

Page 11: ...oducing air into the system and reduces any steering sponginess caused by pipe expansion Connect the autopilot pump to the steering system as shown in Figure 4 Note Refer to the manufacturer s instruc...

Page 12: ...from the other side of the ram to the reservoir via a common return line The system will include a check valve block to direct all returned fluid from the ram back to the reservoir Connect the autopi...

Page 13: ...cuit breaker and fuse as specified in Figure 6 2 Solenoidcontrolvalves usingsuitablecable atleast16AWGor 1 5 mm2 for runs up to 16 m 52 ft forthefirstvalve connectonecoreto theMOTOR A terminal and the...

Page 14: ...to the complete system as specified in the core pack installation guide Note It is important to use the correct cable size for the length of cable run between the pump and the power supply see Table...

Page 15: ...servoir 2 Install the solenoid operated bypass valve across these pipes as shown in Figure 8 3 Connect the bypass valve to theCLUTCH terminalsonthecoursecomputer Type150 400 course computer or the BYP...

Page 16: ...nylon with a suitable pressure rating 6 Haveyousealedallhydraulic connectionsandcheckedforleakages 7 Are power cables correctly routed and securely connected to the course computer Youhavenowfinishedi...

Page 17: ...side of the pump will rise to the helm pump and exhaust into the reservoir continue until all of the air is out of this side of the pump 2 Clear any air on the other side of the pump press the 10 butt...

Page 18: ...ields These can cause adjacent pieces of electrical equipment to interact with one another with a consequent adverse effect on operation In order to minimize these effects and enable you to get the be...