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MAX POWER 

The RETRACT should be installed by a professional specialising in this type of 
installation.  
Architects, construction shipyards and surveyors should be contacted before 
installation.  
All official bodies or classification experts should be contacted before the installation.        
All mechanical installation must apply with the conditions as laid down in the country 
of the boats registration.  
All electrical installation must apply with the conditions as laid down in the country of 
the boats registration origin.  
All hydraulic installation must apply with the conditions as laid down in the country of 
the boats registration origin.  
 

WARRANTY REQUIREMENT  

 
IMPORTANT : All Test readings must be filled out on the form provided and sent to 
Max Power by fax no later than one week after the water tests have been completed 
so that the Max Power standard warranty is correctly validated. This  form is attached 
at the end of this manual. 
 
 

DETERMINING BEST EQUIPMENT LOCATION 

 

POSITIONING  OF THE RETRACT UNIT 

 

IMPORTANT : Correct positioning is essential for correct operation.  
 

(See drawing  1) 

 
The turbines centre requires to be 675 mm (26 

) below the water-line when fully 

extended.  
 
In other words the turbine should be at least one full diameter below the water-line.  
 
The following considerations must be taken into account when determining the 
position of the RETRACT. 
 

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The space available given the vessel’s fixtures, space and shape, and the 
installation at the farthest point forward (or aft) while respecting the minimum 
immersion of the turbine.  

→ 

The structural compatibility of the mounting base. 

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The access needed for installation, and removal of unit.  

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Sufficient access for all maintenance procedures must be allowed for. 

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That the turbine when down is clear of all obstacles that might disturb water 
flow. 

 
IMPORTANT: Always check and make sure that there is enough room to allow for 
complete removal of the RETRACT unit, and room for the connection of the hydraulic 
piping. 
NOTE: Always make sure that there is enough room for the manual override system.  
 

 

- 4                  INSTALLATION MANUAL RETRACT  R 450                   

 

Summary of Contents for RETRACT R450 Series

Page 1: ..._ __ __ __ __ __ _ B BU UI IL LT T B BY Y _ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ _ D DE EL LI IV VE ER RE ED D _ __ __ __ __ __ __ __ __ __ _ A copy of this manual must remain on board for con...

Page 2: ...FITTING OF THE RETRACT UNIT TO THE MOUNTING BASE P7 FINAL ADJUSTING OF THE CLOSING PLATE P8 RAISE LOWER POWER PACK INSTALLATION P8 TRANSMISSION LUBE OIL TANK INSTALLATION P9 HYDRAULIC POWER SYSTEM INS...

Page 3: ...formance and feasibility This study covers 3 distinct sub systems 1 The RETRACT thruster unit positioning space available structural compatibility etc 2 Hydraulic equipment positioning equipment power...

Page 4: ...ERMINING BEST EQUIPMENT LOCATION POSITIONING OF THE RETRACT UNIT IMPORTANT Correct positioning is essential for correct operation See drawing 1 The turbines centre requires to be 675 mm 26 below the w...

Page 5: ...GUIDE BLOCKS The thruster s mechanical stresses are spread over the hull by the mounting base and the guide blocks Installation which should be executed by welding or bonding to the hulls plating nor...

Page 6: ...s closing plate should bear against a gasket fixed to a 20 mm wide rebate when in the raised position While the hull opening closing plate is being fabricated the RETRACT must be temporarily secured o...

Page 7: ...th the hydraulic pipe plugs for storage and future use by the ships crew FINAL ADJUSTING OF THE CLOSING PLATE See drawings N 4 N 3 Once the thruster is permanently bolted onto the mounting base reinst...

Page 8: ...of electrical earth leakage s the hydraulic hoses connected directly to the RETRACT should be non conductive non metal braided hose high pressure thermoplastic hose Absolute internal cleanliness is e...

Page 9: ...uality that is not subject to pinching or crimping This hose should preferably be shorter than 2 meters and have no 90 degree elbows bends CAUTION to prevent the risk of electrical earth leakage s the...

Page 10: ...d on our diagrams must be connected 1 to 1 and 2 to 2 wire sections must be respected to the letter The control box command s the up down unit and hydraulic power spool valves in the correct sequence...

Page 11: ...Check all fittings for tightness and leaks The transmission is already filled with oil at the time of delivery Max Power uses HYPIOD HD 80W 90 oil in the transmission therefore fill the transmission l...

Page 12: ...l the joystick towards yourself aft or down the red light will extinguish the alarm buzzer will sound until the green light illuminates The unit is ready for use when the green light is lit and the bu...

Page 13: ...he green B position switch by loosening its securing nut and readjusting it closer to the actuator PROBLEM The thruster seems to be developing less thrust SECONDARY CAUSE Low oil pressure REMEDY Check...

Page 14: ...move the top cover plate and clean the interior of the caisson and rinse well the articulated joints IMPORTANT If the vessel will remain out of the water for some time for example dry storage for the...

Page 15: ...nd replace filters 5 YEARS 1 Complete removal of unit and return to factory Replacement of all submerged flexible hoses Replace all oil seals and check for bearing wear Unit striped and re corrosion t...

Page 16: ...MAX POWER PROJECT MANAGER S TEST RESULTS FORM To be filled out and faxed to MAX POWER 16 INSTALLATION MANUAL RETRACT R 450...

Page 17: ...ith the bottom of the hull 2 Is there enough room for general maintenance of the RETRACT and its auxiliary equipment 3 Does the closing plate rest upon a gasket 4 Is the adjustment of the closing plat...

Page 18: ...engine s running and the thruster running either direction 1 Record the voltage at the remote control box Volts 2 Record the hydraulic pressure slow speed Bars 3 Record the hydraulic pressure full sp...

Page 19: ...nimum immersion depth of one full turbine diameter should be respected and the thrusters should be as far forward or aft as possible The thruster must be paralell with the botom of the hull not the wa...

Page 20: ...etract Thruster Construction point Never changes nomater the hull shape 17 4 00 RETRACT R450 PRINCIPAL DIMENTIONS YT Turbo CAD The Thruster should be mounted paralell with the botom of the hull Flexab...

Page 21: ...NO REVISION 3RD ANGLE PROJECTION Construction point errors Max Power 03 05 01 POWER Thruster mounted to high Will cause low performance and more loss of boyancy Thruster mounted corectly Thruster mou...

Page 22: ...Fig 1 Fig 2 Gap Caution this situation would cause damage to the turbine while at sea This gap is essential it should be of at least 5mm In this situation there is still up wards movement possible A R...

Page 23: ...fting arm Thruster up and locked Thruster unlocking Ram spring compresed Ram pulling Thruster down Bolt puled out of lifting arms lock R450 locking system Ram pulling Gas spring on other side pushing...

Page 24: ...ts thread at point H Failure to do this can result in serious damage to the turbine 1 1 A B 2 H Proximity switches 1 The proximity switches on the thruster indicate to the control box in witch positio...

Page 25: ...OFF Yachts main equipment breaker bord 4 x 2 mm 2 x 1 mm N 17 18 As shown auxilary alarms N 31 32 Prime mover N 1 8 9 11 DCV valve can also control power if LS N N 21 22 Up Down pump Motor N 1 5 6 Up...

Page 26: ...bypass status port 11 and any 24v neg Switch bar C10 The more bars are on the longer the time delay before port 31 32 energisie Switch bar C11 The more bars are on the longer the delay before port 11...

Page 27: ...UMP SUPPLY POS UP DOWN PUMP SUPPLY NEG NEG 12v 24v POSITION DETECTOR SWITCHES ARE N O TO CONTROL PANEL S ON OFF 24v NEG SUPPLY TO CONTROLE SYSTEM POS SUPPLY TO CONTROLE SYSTEM _ _ _ NEG Plan for custo...

Page 28: ...r is down and ready to function Service closing plate fixations POWER Hull plate bracket to be made in such a way as no contact is made between hull plate and thruster To change oil remove both Plugs...

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