MAX POWER
The control box is equipped for both but may need re programming.
Please note that a bow thruster does not have a specific pressure the pressure at a
given flow can vary by approximately 10 % depending on installation parameters.
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 (see drawing
N°5) 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 280
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.
RESERVOIR
The reservoir should be mounted as close to the pump as possible and must always
be higher than any other component in the system. The reservoir must be mounted
at a height that allows the breather to be situated 500 mm, or higher, above the
waterline. If this is not possible, then the breather can be removed and installed on
the end of an extension pipe or hose.
Mounting the reservoir too low could result in oil draining back, or overflowing the
tank. Be sure to allow enough space above the reservoir to service the filter.
If MAX POWER does not supply the reservoir, then provide a return filter of 60
microns and a suction strainer.
The reservoir must be flushed after installation.
- 9 INSTALLATION MANUAL RETRACT R 450
