MAX POWER
CAUTION: to prevent the risk 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
essential
. After pipes and hoses have been equipped with their fittings, they must be
blown out with compressed air, and then plugged until connected.
The pressure limiter on the unit is pre set and should need no adjustment!
HYDRAULIC POWER SYSTEM INSTALLATION
Hydraulic power system general
A RETRACT R600 Can take
up to
200 LPM of hydraulic flow this will causes on a
normal installation 250 bar pressure at the thrusters inlet ports.
NOTE variations of approximately 10% are possible depending on hull shape and
immersion depth.
The hydraulic power system should be designed in consequence.
The hydraulic power system must start the thruster gently (soft start) either by using
a ramping valve or by using a 2 stage slow / fast speed bypass system.
The control box is equipped for both but may need re programming.
All the hydraulic power equipment, such as the piping, reservoir, pump, directional
valve, etc. should be installed in compliance with the usual rules of accessibility to
enable periodic checks and maintenance.
MAX POWER recommends the use of
ISO GRADE 15 to 32 hydraulic oils
for the
power circuit.
PRESSURE PIPING
All hydraulic high pressure power circuit piping must comply with high pressure
standards, and have a diameter at least equal to that recommended in order to
reduce pressure loss especially when the installation’s layout requires long hose
lines.
All power circuit piping must have a continuous service pressure rating of at least 300
bars. Fittings must be of good quality, and crimped as per manufacturers instructions.
The pump intake hose line (from the reservoir) must be of a quality 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 hydraulic hoses
connected directly to the RETRACT should be non-conductive (non-metal braided
hose) high-pressure thermoplastic hose.
Absolute internal cleanliness is
essential
. After pipes and hoses have been equipped with their fittings, they must be
blown out with compressed air, and then plugged until connected.
- 8 INSTALLATION MANUAL RETRACT R 600
