MAX POWER
This closing plate should bear against a flexible seal fixed to a 30-mm wide rebate.
While the hull opening closing plate is being made, the RETRACT must be
temporarily secured on the mounting base flange to facilitate correct closing plate
fabrication.
The hull plate must be fixed to the supplied aluminium adjustable mounting ( which
has 4 elongated holes for initial adjustment).
the gasket in the hulls rebate can be made either out off soft cellular neoprene rubber
or moulded in
soft
SIKAFLEX (or a similar product) to form a flexible seal .Precaution
must be taken to ensure that the flexible gasket does not glue the closing plate to the
hull while drying .The plate must rest evenly, on the gasket with a reasonable
pressure.
IMPORTANT To prevent marine growth inside the casing, it is essential that once the
unit is raised, no light is allowed to enter. Therefore the closing plate gasket is
essential
and requires careful and permanent fixation.
FINAL FITTING OF THE RETRACT UNIT TO THE MOUNTING BASE
CAUTION To ensure absolute cleanliness, hydraulic lines and ports must remain
plugged until connection to hydraulic system .
Final installation on the mounting base must be made after thoroughly cleaning and
then liberally coating both joining surfaces (case and base) with a good quality
marine grease. This is so that the O ring seal is compressed flat, evenly, smoothly
and squarely when the bolts are tightened.
Under no circumstances should the RETRACT be glued or bedded down
with a
marine type mastic/glue such as Sikaflex or other similar product.
The flange bolt should be
tightened sequentially
and in successive passes until the
two surfaces touch. If desired, a torque wrench can be used and the bolts can be
tightened to a torque of 4,0 kg/M. The flange bolts should be metric size 10 mm of
stainless steel, and should have a large stainless steel washer placed above a nylon
washer. The nylon washers avoid stainless steel contact with the aluminium case.
The nuts should be type NYLOCK.
The 2 lifting lugs provided by MAX POWER, should be put in a small plastic bag,
along with the hydraulic pipe plugs, for storage and future use by the ships crew or
owner.
FINAL ADJUSTING OF THE CLOSING PLATE (see drawing)
Once the thruster is permanently bolted onto the mounting base and has been
correctly tightened, reinstall the plate and check it’s adjustment.
5
INSTALLATION MANUAL RETRACT R 300
