EN
BTR185 INSTALLATION AND USE MANUAL - REV009A
41
BTR1858 - Warnings
• This bow thruster is not designed for continuous use.
It is equipped with protections which limit its operation at a maximum time span, as reported on the controls’ man-
ual. It is strongly forbidden to bypass or modify such protections in order to increase the operating time span, lest
voiding the warranty and thus lifting any responsibility from Quick
®
SPA.
• Before starting the retractable thruster ensure there are no bathers and oating objects near-by.
• To prevent any damage to the system, it is recommended not to sail with the open retractable thruster; to perform
the thruster’s opening and closing at a maximum speed of 4 knots, according to the currents, and at a maximum
speed of 2 knots, still according to the currents, if reversing.
• To avoid damaging the system, it is recommended not enable the retractable thruster at speeds over four nodes.
• There must not be ammable materials in the peak or in the area where the Bow Thruster motor is.
• During mooring, it is recommended not to leave in the water any free line, which may be sucked in by the propel-
lers, thus leading them to break (g. 24).
Fig. 24
8.0 - Warnings
9.0 - Use of the retractable thruster
To correctly use the retractable thruster, refer to the TCD control manual
Start-up
When switching on, the RTC R1 board verify the position of the retractable thruster (raised, lowered or in an intermediate
position). If it is raised, the system does not execute any actions. If it is lowered or in the intermediate position, it will com-
mand the ascent of the retractable thruster.
Enabling control from TCD (Retractable thruster descent)
When the RTC R1 board is enabled by a TCD control, the retractable thruster begins its descent.
The left/right commands from the TCD are inhibited until this operation is complete. During the descent phase, the RTC R1
board measures the current absorbed by the linear actuator. If mechanical friction causes elevated absorption in the linear
actuator, the descent will be reversed briey and then restart. After 3 attempts, the RTC R1 board will signal the problem.
Disabling control from TCD (Retractable thruster ascent)
When the RTC R1 board is disabled by a TCD control, the retractable thruster begins its ascent.
The right/left commands from the TCD are inhibited during the ascent. During the ascent phase, the RTC R1 boards measures
the current absorbed by the linear actuator. If mechanical friction causes an elevated absorption in the linear actuator, the
ascent will be reversed briey and then restart. After 3 attempts, the RTC R1 board will signal the problem.
Automatic ascent in case of time out TCD
With the propeller lowered, after 6 minutes from last TCD right or left control, the retractable thruster performs the ascent
procedure.
Errors detection from TCD
In case TCD sends an error signal in network (prolonged control, line interruption, short circuit in right or left output), the
retractable thruster performs the ascent procedure.
9 - Usage BTR185
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