Lewmar 34-77 manual Electrical connections, Series Electric 34-48, 12 V or

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3. Electrical connections

3.1E Series Electric 34-48, 12 V or 24V

This simple installation of a power drive unit, motor and switch gear controls the winch by a single direction contactor, which can be a Contactor housed in a waterproof box (Fig 3.1.1), or a stand alone Nylon encased unit (Fig 3.1.2).

The motor thermal trip is connected to monitor motor temperature while the Lewmar safety electric deck switch can be easily wired.

Manual override facility is still available for backup, or as a means of experiencing traditional sailing.

Two plus one speed comes as standard control which gives two speed manual drive (handle) plus one speed electric drive.

3.2ELS Electric Load Sensing 34-48, 12 V or 24 V

Fig. 3.1.1 Single direction contactor in box with thermal cutout. 12 V (18000301) or 24 V (18000302). Also see Section 3.7.

 

Battery – VE

 

 

 

 

1

 

 

 

Grey

 

 

 

Electric Switch Kit

Not Used

 

Battery

 

 

 

 

 

 

 

 

 

 

69000018

 

 

 

 

 

 

Thermal

Blue

Black

 

 

 

 

Cutout

 

 

 

 

 

 

 

 

 

4

D1

 

Amp3

FuseBlowSlow

SuppliedCustomer

Switch

 

 

 

 

 

 

A2

2

 

 

 

 

 

 

 

 

 

 

Isolator/Safety

D2

 

 

 

 

 

 

 

Contactor

 

 

 

 

Circuit

 

12 V - 18000301

 

 

 

 

 

 

 

 

 

Breaker

 

24 V - 18000302

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Motor +VE

 

Battery +VE

Fig. 3.1.2 Contactor

 

 

 

 

 

Motor +VE

 

 

 

 

 

 

12 V (0052505) or 24 V (0052506)

 

 

 

 

0 V/Motor A2

 

Battery +VE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Electric

 

 

 

 

 

 

Switch Kit

 

 

 

 

 

 

69000018

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Blue

 

 

3 Amp

Grey

 

 

 

 

Black

 

 

Slow Blow Fuse

 

 

 

 

 

Not Used

 

Customer Supplied

 

 

 

 

Thermal

 

 

 

Cutout

 

Fig. 3.2.1 12 V or 24 V Control box with overload protection. Also see Section 3.7.

This installation controls the winch by Lewmar’s unique Overload Protection Control Box (Fig 3.2.1), 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

PCB

Two-way

3A Terminal Block

Fuse

 

Air Deck

 

Switch Kit

 

69000022

Electric Switch Kit

 

69000016

 

2

 

Black

 

Blue

 

Grey

Sub Box

Not Used

 

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.

1

Battery –VE

Control Box

 

 

 

Battery

3

4

 

Thermal

 

Cutout

 

 

 

 

 

D1

Isolator/Safety

 

Motor –VE

A2

Switch

 

 

 

Motor + VE

D2

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.

10Ocean Electric Winches 34 - 77

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Contents Page Contents Introduction Safety noticesIdentifying the manual convertible winch InstallationPreparing the manual winch for conversion to electric Fitting a complete electric winch from newFitting a convertible electric winch Positioning winch ancillaries below deck44~64 Winch/motor gearbox coupling FasteningsWinch FasteningBattery size Electrical wiring installationTypical electrical layout Main spindle rotationSeries Electric 34-48, 12 V or Electrical connectionsELS Electric Load Sensing 34-48, 12 V or 24 Total voltage drop Must not exceedConnect the power supply cables ELS Electric Load Sensing 50-65, 12 V or 24For cable sizing Winch in 3 different ways Performance diagrams NEW Electric deck switchRed +VE Operating your winch Safe working loadsOptimum rope diameters Maximum winch load valuesGrease Oil Servicing your winchParts list Winch model notesQty 64/65 66/68-*2 77-*2 Push Rod Assembly18000181 QtyDimensions 72.5Model Model range Total weightModel range 34/40Model 64/65 Circuit breakersSpeed 66/68Fault finding KEY Terms of Supply by Lewmar Lewmar limited warrantyB2303

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.