MAX POWER
When testing the cover plate fit, either use the manual raising lever or the raise/lower
unit.
When the upper travel limit has been reached, the mechanical locking device, which
consists of the locking cam (b) and the locking lever (c) must engage automatically.
Although the RETRACT R300 is delivered completely tested and folded in the UP
position, the locking lever can not be definitively adjusted at the factory. The locking
lever adjustment eccentric ( e ) has been set at the factory in the medium position.
The adjustment procedure is as follows.
Adjust the hull closing plate by performing several up down manoeuvres using
the elongated holes in the aluminium mounting plate to make initial
adjustment.
Tighten the bolts holding the aluminium mounting
using locktite
.
Remove the retaining screw (f) on the plastic bush
Place the manual raising lever (a) on the end of the lifting arm and press down
to raise the arm (turbine) to maximum height. while holding the manual lifting
arm a second person can rotate the eccentric (e) right or left, to raise or lower
the locking lever to the position required
Replace the bush retaining screw in the nearest convenient hole (two holes
provided)
Should the turbine still have some movement when locked increase the
locking bolt height using the eccentric by one half hole.
Should
at this point
the thruster only just, not quite lock, then the locking
pressure can be
very slightly
increased using the pressure limitor on the up
down unit. The locking pressure should not exceed 50 bar .
This entire procedure is only possible when the
soft flexible
gasket is
correctly and permanently installed.
UP/DOWN UNIT INSTALLATION
The raise/lower unit should be near the RETRACT unit. It should be installed in an
readily accessible and dry place.
The hydraulic ports (LA and LB) on the raise/lower pump unit and the raise/lower ram
(VA and VB) must be connected A to A and B to B.
These flexible hoses must be 3/16
″
or 1/4
″
with an operating pressure rating of at
least 100 bar.
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
6
INSTALLATION MANUAL RETRACT R 300
