MAX power 225HYD DUO, Installation Operation & Maintenance

The  pump can be driven by either an internal combustion engine (crankshaft pulley or 
gearbox PTO) or an electric motor. Depending on the speed and choice of drive, but should 

always comply with the rated pressure/flow of the thruster.  

 
For an internal combustion engine with fixed or variable speed, 3 types of pumps can be 

used, depending on the unit to be fitted:  

Direct PTO:   

Fixed flow pump  (***) 
Variable displacement pump, depending on the model  (**) (*) 

Fixed flow pump with bypass  (**) (*)  

PTO with clutch:  

Fixed flow pump   (**) (*) 

Variable displacement pump depending on the model  (**) (*) 

Fixed flow pump with bypass  (**) (*) 
 

On a DC or AC electric motor the following types of pumps can be used: 
 

DC MOTOR: 

Fixed flow pump  (*) 

AC MOTOR: 

Fixed flow pump or other  (**) (*) 

 
(***)   always require oil cooler 

(**)     require oil cooler when time of operation exceeds 15 minutes,  
(*)       oil cooler not necessary 

Note:  The above choices also depend on capacity of the oil tank etc.   

 
The hydraulic directional control valve (DCV) must be equipped with a pressure gauge and 

pressure relief valve and should preferably be placed as close as possible to the thruster unit.  

 
The piping can be flexible or a mix of rigid and flexible type and should have crimp-

connected fittings.   
The piping should match interior diameters and the service pressure equal or above that 

which has been recommended.   

The circuits must be as direct as possible and avoid any bends and joints.   
The circuits must be clean and closed-off until final connection takes place.  

The thruster hoses arriving at the thruster must be of the thermo-plastic non-conductive 

type.  
The hydraulic motor drain line and the return T-line of the DCV should each go separately 

and directly, back into the top of the oil tank. 
 

Use synthetic, mineral or vegetable hydraulic oil, to ISO standard 32 to 48. 

8)  

HYDRAULIC SPECIFICATIONS  

 
SUPER POWER Series 225 HYD: Flow = 33/35 litres/Min   Pressure = 200/220 bars. 

 
Detailed instructions and diagrams are delivered with each pack, specific to the installation 

chosen. 

Manual Max Power Series 225 HYD

Last Update: December 2016

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