Lewmar 34-77 manual ELS Electric Load Sensing 50-65, 12 V or 24, Connect the power supply cables

Page 10

3.3ELS Electric Load Sensing 50-65, 12 V or 24 V

This installation controls the winch by Lewmar’s unique Overload Protection Control Box (Fig 3.3.1), this allows the winch to be operated up to the Safe Working Load for winch size.

Other features as Section 3.1

Total voltage drop MUST NOT exceed 5% of supply over completed cabling installation. Check all connections for water tight security. Lewmar

recommends an isolator to be fitted in the circuit in an accessible position as close as possible to the supply.

Connect the power supply cables

to the battery last when the winch installation has been completed and checked for correct installation. Incorrect connection of motor cables may damage the unit.

3.4ELS Electric Load Sensing 2/3 speed controller 66/68-77, 12 V or 24 V

This installation controls the winch by Lewmar’s unique Overload Protection & Autoshift Control Box (Fig. 3.4.1). This allows the winch to be started in 1st and if reaches the Safe Working Load, for the winch size and gear, will automatically shift the winch into 2nd gear for complete load control.

In the case of a 3 speed winch (Fig. 3.4.1b) the switch must be re-selected to achieve 3rd gear.

Total voltage drop MUST NOT exceed 5% of supply over completed cabling installation. Check all connections for water tight security. Lewmar recommends an isolator to be fitted in

the circuit in an accessible position as close as possible to the supply.

Connect the power supply cables to the battery last when the winch installation has been completed and checked for correct installation. Incorrect connection of motor cables may damage the unit.

Fig. 3.3.1 12 V or 24 V Control box with overload protection. Also see Section 3.7.

GB

 

 

Air Deck

PCB

Switch Kit

 

69000022

 

Electric Switch Kit

 

 

Two-way

69000016

 

3A

2

 

Terminal Block

 

Fuse

 

 

 

 

 

Black

 

 

Blue

 

 

 

 

Grey

Sub Box

 

 

Not Used

 

 

Battery –VE

1

 

 

 

 

Control Box

Motor –VE

 

Battery

 

 

 

 

 

 

F2

Thermal

 

3

F1

 

Cutout

 

 

 

 

 

4

Isolator/Safety

 

Switch

 

 

 

A1

A2

 

 

 

 

Motor +VE

Circuit

Breaker

 

 

 

Battery +VE

 

 

Fig. 3.4.1a 2 Speed winch electrical connections

Fig. 3.4.1b 3 Speed winch electrical connections

 

F2

 

F1

 

F1

 

F2

Fig. 3.4.1 2/3 Speed 12 V or 24 V control box with overload protection. Also see Section 3.7.

Electric Switch Kit

69000016

2

Sub Box

Black

Blue

Grey

Not Used

Air Deck

Switch Kit

69000022

1

Battery –VE

Battery

 

 

 

 

 

 

–VE

 

 

Thermal

 

 

 

 

 

 

 

 

Cutout

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

Motor

F1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F2

Isolator/Safety

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

Switch

Control Box

 

8

A1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Motor – VE

A2

Circuit

 

 

 

 

 

 

 

Breaker

Battery +VE

NUMBER KEY FOR ALL ELECTRICAL DIAGRAMS

nNegative earth MUST be used.

oThe deck switch wires MUST be fitted as shown on wiring diagrams.

pConnect all low power wiring (deck switches, motor cutout etc.) before fitting high power cables to controller.

q Cable boots are supplied for all high power cable connections, follow guidelines Fig. 2.1.1

for cable sizing.

Ocean Electric Winches 34 - 77 11

Image 10
Contents Page Contents Safety notices IntroductionPreparing the manual winch for conversion to electric InstallationIdentifying the manual convertible winch Fitting a complete electric winch from newPositioning winch ancillaries below deck Fitting a convertible electric winch44~64 Winch FasteningsWinch/motor gearbox coupling FasteningTypical electrical layout Electrical wiring installationBattery size Main spindle rotationELS Electric Load Sensing 34-48, 12 V or 24 Electrical connectionsSeries Electric 34-48, 12 V or Total voltage drop Must not exceedELS Electric Load Sensing 50-65, 12 V or 24 Connect the power supply cablesFor cable sizing Winch in 3 different ways NEW Electric deck switch Performance diagramsRed +VE Optimum rope diameters Safe working loadsOperating your winch Maximum winch load valuesServicing your winch Grease OilWinch model notes Parts listQty 64/65 18000181 Push Rod Assembly66/68-*2 77-*2 Qty72.5 DimensionsModel Model range Total weightModel range 34/40Speed Circuit breakersModel 64/65 66/68Fault finding Lewmar limited warranty KEY Terms of Supply by LewmarB2303

34-77 specifications

The Lewmar 34-77 is a sophisticated and reliable winch designed for sailing enthusiasts seeking both performance and ease of use. This versatile winch is part of Lewmar's extensive range, known for its innovative engineering and high-quality materials. The 34-77 model combines strength, durability, and advanced features, catering to a variety of sailing conditions and user preferences.

One of the standout features of the Lewmar 34-77 is its self-tailing mechanism. This technology allows sailors to operate the winch without manual assistance in securing the line, providing ease of handling, especially when managing larger sails or when single-handed sailing. The self-tailing design features a robust, integrated clutch that securely holds the line while the winch is engaged, ensuring optimal performance without slipping.

The winch is constructed from high-grade materials, with a focus on maximizing corrosion resistance and longevity. The aluminum construction not only makes the winch lightweight but also provides exceptional strength, allowing it to handle heavy loads with ease. The hard-anodized surface treatment enhances protection against wear and abrasion, ensuring the winch can withstand the harsh marine environment.

Another characteristic that distinguishes the Lewmar 34-77 is its innovative gearing system. The winch features a 2-speed operation, allowing sailors to choose between higher speed for quick trimming and more power for heavy loads. This versatility enables a more tailored approach to sailing maneuvers, enhancing the overall sailing experience.

The design of the Lewmar 34-77 is also user-centric, incorporating a smooth and ergonomic drum. This feature minimizes friction, enabling easier line handling and increased efficiency. The winch’s low-profile design ensures that it doesn't obstruct movement on the deck, making it an ideal choice for both racing and cruising vessels.

In summary, the Lewmar 34-77 is a high-performance winch that embodies the essence of modern sailing technology. Its self-tailing mechanism, durable materials, efficient gearing, and user-friendly design make it a preferred choice among sailors who demand reliability and efficiency in their equipment. Whether you're racing competitively or enjoying a leisurely cruise, the Lewmar 34-77 ensures you have the tools necessary for a successful and enjoyable sailing experience.