QS Seamaster QSR Series

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Summary

Information About the Product

Technical Data

Detailed technical specifications, including model, power, voltage, fuse, thrust, weight, and cable sections.

Supplied Parts

List of all components included in the QSR thruster package.

Needed Tools for Installation

Essential tools required for the correct installation of the QSR thruster.

Recommended Accessories

Optional accessories recommended by QS Seamaster for the QSR thruster.

Introduction

Important Notes

Key safety warnings and recommendations for using the QSR thruster manual.

Precautions for the Installer

Essential safety guidelines and requirements for personnel installing the QSR thruster.

Installation Requirements

General guidelines and considerations for the correct installation of the QSR retractable thruster.

Safety

Warnings

Crucial safety warnings and precautions for operating and installing the QSR thruster.

Installation

Installation Requirements

Specific requirements and positioning guidelines for installing the QSR thruster.

Counter Flange Installation

Detailed steps and considerations for installing the counter flange on the hull.

Closing Lid Preparation and Installation

Steps for preparing and installing the closing lid of the QSR thruster system.

Thruster Installation

Procedure for correctly installing the QSR thruster onto the counter flange.

QSR Ø250 Motor Installation

Specific instructions for installing the motor on the QSR Ø250 model.

Mechanical Check and Adjustment of the System

Procedure to check and adjust the mechanical system for the QSR thruster's hatch.

Installation of the Cable in the Lid

Steps for routing and securing the cable within the QSR thruster lid.

Adjustment Procedure

Detailed steps for adjusting the QSR thruster's end strokes and controls.

Actuators Adjustment

Instructions for adjusting the actuator's side lid and end strokes for proper operation.

Installation of the Springs End Stroke Wires

Procedure for installing and tensioning the springs' end stroke wires on the QSR thruster.

Connection Diagram

QSR Basic System

Diagram showing basic electrical connections for the QSR system with a battery isolator.

RTC R1 Board

Detailed diagram of the RTC R1 board, including connectors and settings.

Operation

Option Selection Dip-Switch

Explanation of dip-switch settings for QSR thruster options and functions.

Actuator Current Rotary Switch

Guide to setting the actuator current limit using the rotary switch for optimal performance.

Notification

QSRGTW Adapter Signalling

Meaning of LED status indicators on the QSRGTW adapter for system monitoring.

Flashing Signals

Detailed explanation of LED error codes and flashing signals for the RTC R1 board.

Warnings

Crucial warnings and safety precautions for the proper use of the QSR bow thruster.

Usage

Use of the Retractable Thruster

Instructions on how to operate the QSR retractable thruster using the QAJ control.

Emergency Propeller Lock

Procedure for locking the propeller in the closed position during emergencies.

Maintenance

Periodic Maintenance

Guidelines for periodic maintenance, cleaning, and checks of the QSR thruster.

Spare Parts

QSR Ø185 Spare Parts

List of spare parts for the QSR Ø185 model, with drawing numbers.

QSR Ø250 Spare Parts

List of spare parts for the QSR Ø250 model, with drawing numbers.

QSR 16025024 Spare Parts

List of spare parts for the QSR 16025024 model.

QSR 23025024 Spare Parts

List of spare parts for the QSR 23025024 model.

OSP Spare Parts

Catalog of Original Spare Parts (OSP) for QSR thrusters.

Dimensions

Model Dimensions

Technical dimensions and measurements for various QSR thruster models.

The document describes the QSR series Retractable Thruster by QS Seamaster, a device designed for marine propulsion. This user manual, identified as REV 000A, provides comprehensive information on its installation, operation, maintenance, and technical specifications.

Function Description

The QSR retractable thruster is a marine propulsion unit with two distinct movements:

Main Movement (Tilting Type): This relates to the propulsion part itself, designed to tilt. The hinges are engineered for high resistance and are located on a flat flange surface that connects the pre-assembled structure to the hull's solid support.
Secondary Movement (Lid Closing): This movement facilitates the closing of the through-hull fitting from which the tunnel emerges. It also operates around the hinge, designed to open the lid without interference when properly installed.

The thruster is intended to provide maneuverability for boats, particularly for bow thruster applications. It is equipped with protections that limit its operation time, as detailed in the control manual. The system includes an actuator for controlling the retraction and extension of the thruster.

Important Technical Specifications

The manual provides detailed technical data for various QSR models: QSR 80-185, QSR 100-185, QSR 160-250, and QSR 230-250.

Common Specifications:

Propellers: 2 counter-rotating propellers.
Tunnel Diameter: 185 mm (7" 18/64) for QSR 80-185 and QSR 100-185 models; 250 mm (9" 27/32) for QSR 160-250 and QSR 230-250 models.

Model-Specific Specifications:

Model	Motor Power	Voltage	Fuse (CNL DIN)	Thrust (kgf / lb)	Weight (kg / lb)	Recommended Cable Section (L<5m)
QSR8018512	4.3 kW	12 V	400 A	80 kgf / 176.4 lb	47.5 kg / 104.5 lb	2 x 50 mm² (2 x AWG 1)
QSR8018524	4.3 kW	24 V	275 A	80 kgf / 176.4 lb	50.5 kg / 111.1 lb	2 x 70 mm² (AWG 2/0)
QSR10018512	6.3 kW	12 V	400 A	100 kgf / 220.5 lb	57.0 kg / 125.4 lb	2 x 70 mm² (2 x AWG 2/0)
QSR10018524	6.3 kW	24 V	275 A	100 kgf / 220.5 lb	54.5 kg / 120.0 lb	2 x 95 mm² (2 x AWG 3/0)
QSR16025024	8.0 kW	24 V	400 A	140 kgf / 308 lb	85.2 kg / 188 lb	2 x 70 mm² (2 x AWG 2/0)
QSR23025024	10 kW	24 V	300 A	240 kgf / 529 lb	90.2 kg / 199 lb	2 x 95 mm² (2 x AWG 3/0)

Cable Section Recommendations (L = positive cable + negative cable):

L<5m: Varies by model, e.g., 2 x 50 mm² for QSR8018512, 2 x 70 mm² for QSR8018524.
5.1< L < 10m: Varies by model, e.g., 2 x 70 mm² for QSR8018512, 2 x 50 mm² for QSR8018524.
10.1< L< 20m: Varies by model, e.g., 2 x 95 mm² for QSR8018512, 2 x 70 mm² for QSR8018524.

Dimensions:

QSR80185 models: A (length) 743 mm (29" 1/4), B (height) 323 mm (12" 23/32). Overall width 599 mm (23" 37/16), overall height 370 mm (14" 9/16).
QSR100185 models: A (length) 801 mm (31" 17/32), B (height) 384 mm (15" 1/8). Overall width 599 mm (23" 37/16), overall height 370 mm (14" 9/16).
QSR16025024: A (length) 866 mm (34" 3/32), B (height) 443 mm (17" 7/16). Overall width 800 mm (31" 1/2), overall height 570 mm (22" 7/16).
QSR23025024: A (length) 917 mm (36" 7/64), B (height) 515 mm (20" 9/32). Overall width 800 mm (31" 1/2), overall height 570 mm (22" 7/16).

Usage Features

The QSR retractable thruster is designed for nautical use and controlled via QAJ remote controls (QAJ0T, QAJ1T, QAJ2T).

Operational Modes:

Start-up: Upon switching on, the RTC R1 board verifies the thruster's position. If raised, no action is taken. If lowered or in an intermediate position, it commands ascent.
Retraction (Ascent): When the QAJ control is disabled, the thruster begins its ascent. Left/right commands are inhibited. The RTC R1 board monitors linear actuator current; if high absorption due to mechanical friction occurs, ascent is briefly reversed and then restarted. After 3 attempts, a problem is signaled.
Extension (Descent): When the QAJ control is enabled, the thruster begins its descent. Left/right commands are inhibited. Similar to ascent, the RTC R1 board monitors actuator current and reverses/restarts descent if high absorption is detected. After 3 attempts, a problem is signaled.
Automatic Ascent: If the propeller is lowered and no QAJ right or left control input is received for 6 minutes, the thruster automatically performs the ascent procedure.
Error Detection: If the QAJ sends an error signal (prolonged control, line interruption, short circuit), the retractable thruster performs the ascent procedure.

Safety Precautions during Usage:

Not designed for continuous use; operation time is limited by built-in protections. Bypassing these protections voids the warranty.
Before operation, ensure no bathers or floating objects are nearby.
Avoid sailing with the thruster open to prevent damage.
Perform opening/closing at a maximum speed of 4 knots (according to currents), and reversing at a maximum speed of 2 knots (according to currents).
Do not enable the thruster at speeds over four knots.
Ensure no flammable materials are near the bow thruster motor.
During docking, avoid leaving free ropes in the water to prevent them from being sucked into the propellers.

Emergency Closing:

In an emergency, the propeller can be locked in the closed position. On the actuator, under a sticker (Ø185) or plastic cover (Ø250), there is a slotted screw. Turning it clockwise with a screwdriver closes the system. Always disconnect the QSR propeller from power before performing this.

Maintenance Features

Regular maintenance is crucial for the QSR retractable thruster's longevity and efficiency. QS Seamaster thrusters are made of sea-resistant materials, but periodic cleaning of salt deposits is necessary.

Annual Maintenance (Dismantle once a year):

Clean propellers, tunnel, and gearleg.
Replace damaged or worn-out propellers.
Replace anodes (more often if needed) and, if possible, grease the double joint with marine grease.
Check the tightness of all screws.
Ensure no water seepage inside.
Verify all electrical connections are well tightened and free of oxidation.
Check battery conditions.
Remove graphite residues from normal motor brush use.

Periodic Checks:

Periodically check and, if necessary, replace oil seals.

Important Maintenance Warnings:

Always ensure the power supply to the electric motor is switched off when performing maintenance operations.
Do not paint the anodes, sealings, and gearleg shafts where the propellers are lodged.

The manual also details spare parts for QSR Ø185 and QSR Ø250 models, including motors, contactors, gearlegs, propellers, and various mechanical components. It emphasizes that disassembly and scrapping operations at the end of the product's lifetime must be performed by qualified personnel, adhering to local recycling and disposal regulations.